Bobcat Mini Track Loaders MT50, MT52, MT55 Repair Service Manuals

Complete repair service manual with electrical wiring diagrams for Bobcat Mini Track Loaders MT50, MT52, MT55, with technical information to maintain, diagnose, repair, and service like professional mechanics.

Bobcat Mini Track Loaders MT50, MT52, MT55 workshop service repair manual includes:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.

6901508 (6-04) - MT50 Operation & Maintenance Manual.pdf
6901510 (3-06) - MT50 Mini Track Loader Service Manual.pdf
6901510 (6-12) - MT50 Mini Track Loader Service Manual.pdf
6902524 (10-04) - MT52 Operation & Maintenance Manual.pdf
6902525 (3-06) - MT52 Service Manual.pdf
6902525 (6-12) - MT52 Service Manual.pdf
6903371 (5-07) - MT55 Mini Loader Operation & Maintenance Manual.pdf
6903372 (5-07) - MT52, MT55 Service Manual.pdf
6903372 (10-12) - MT52, MT55 Service Manual.pdf
6903375 (5-07) - MT52 Mini Loader Operation & Maintenance Manual.pdf
6986856 (8-10) - MT52 Mini Loader Operation & Maintenance Manual.pdf
6986858 (3-10) - MT55 Mini Loader Operation & Maintenance Manual.pdf
6986859 (3-11) - MT52, MT55 Mini Track Loader Service Manual.pdf
6986859 (6-14) - MT52, MT55 Mini Track Loader Service Manual.pdf
6986859 (9-10) - MT52, MT55 Mini Track Loader Service Manual.pdf

Total Pages: 4,321 pages
File Format: PDF (bookmarked, Searchable, Printable, high quality)
Language: English

MAIN SECTIONSD
6901508 (6-04) - MT50 Operation & Maintenance Manual....1
  OPERATOR SAFETY WARNINGS....3
  CONTENTS....5
  FOREWORD....7
    BOBCAT COMPANY IS ISO 9001:2000 CERTIFIED....9
    REGULAR MAINTENANCE ITEMS....9
    MOTOR OIL....9
    SERIAL NUMBER LOCATIONS....10
    MINI LOADER SERIAL NUMBER....10
    ENGINE SERIAL NUMBER....11
    DELIVERY REPORT....11
    MACHINE IDENTIFICATION....12
    FEATURES, ACCESSORIES AND ATTACHMENTS....13
      Standard Items....13
      Options and Accessories....13
      Attachments....13
  SAFETY....15
    SAFETY INSTRUCTIONS....17
      Before Operation....17
      Safe Operation Is The Operator?s Responsibility....18
      Safe Operation Needs A Qualified Operator....18
      Fire Prevention....19
    MACHINE SIGNS (DECALS)....20
  OPERATING INSTRUCTIONS....23
    CONTROLS IDENTIFICATION....25
    CONTROLS OPERATION....25
    PARKING BRAKE....26
    ENGINE SPEED CONTROL....26
    OPERATION MODE SELECTOR....27
    HYDRAULIC CONTROLS....28
      Lift Arm Operation....28
      Lift Arm Float Position [Figure OI-7]....28
      Tilt Operation....28
      Front Auxiliary Hydraulics....28
      Releasing Hydraulic Pressure (Loader and Attachment)....29
      Quick Couplers....29
    LIFT ARM BY-PASS CONTROL....29
    STEERING LEVERS....30
    STOPPING THE BOBCAT LOADER....30
    REVERSE STOP PANEL....30
    DAILY INSPECTION....31
      Daily Inspection and Maintenance....31
    PRE-STARTING PROCEDURE....32
    STARTING THE ENGINE....33
      Cold Temperature Starting....34
      Warming the Hydraulic System....34
    STOPPING THE ENGINE....34
    ATTACHMENTS AND BUCKETS....35
      aTTACHMENTS AND bUCKETS (CONT?D)....36
      Installing The Bucket Or Attachment....36
      Removing The Bucket Or Attachment....37
    OPERATING PROCEDURE....37
      Inspect The Work Area....37
      Driving On Rough Terrain And Over Curbs....37
      Filling the Bucket....39
      Emptying the Bucket....39
      Leveling The Ground (Using Lift Arms In Float Position)....40
      Digging Into the Ground....40
      Backfilling....41
    PARKING THE BOBCAT LOADER....41
    TRANSPORTING THE BOBCAT LOADER....42
    FOUR POINT LIFT....42
  PREVENTIVE MAINTENANCE....43
    MAINTENANCE SAFETY....45
    SERVICE SCHEDULE....47
      Chart....47
    LIFT ARM SUPPORT DEVICE....48
      Installing Lift Arm Support Device....48
      Removing Lift Arm Support Device....48
    TRACK TENSION....49
      Adjusting The Tracks....49
    ENGINE COVER....50
    ALTERNATOR BELT....50
      Adjusting The Alternator Belt....50
    REAR DOOR....51
    AIR CLEANER SERVICE....51
      Replacing the Filter Element....51
    FUEL SYSTEM....53
      Fuel Specifications....53
      Filling the Fuel Tank....53
      Fuel Filter....54
      Removing Air From The Fuel System....54
    REVERSE STOP PANEL....55
      Inspecting Function Of Reverse Stop Panel....55
      Adjusting The Reverse Stop Panel....55
    LIFT AND TILT FUNCTION LOCKOUTS....56
      Inspecting Deactivation of Lift and Tilt Functions....56
    LIFT ARM BY-PASS CONTROL....56
      Inspecting The Lift Arm By-Pass Control....56
    NEUTRAL START INTERLOCKS....57
      Inspecting Traction Drive Interlocks....57
      Inspecting Auxiliary Hydraulic Interlock....57
    ENGINE LUBRICATION SYSTEM....57
      Checking Engine Oil....57
      Oil Chart....57
      Replacing Oil And Filter....58
    ENGINE COOLING SYSTEM....59
      Checking The Coolant Level....59
      Cleaning The Cooling System....60
      Replacing the Coolant....61
    SPARK ARRESTOR MUFFLER....62
    ELECTRICAL SYSTEM....63
      Description....63
      Fuses [Figure PM-34]....63
      Relays [Figure PM-34]& [Figure PM-33]....63
      Cleaning Battery Terminals....64
      Using A Booster Battery (Jump Starting)....64
      Removing And Installing The Battery....65
    HANDBAR ADJUSTMENT....66
    HYDRAULIC SYSTEM....67
      Checking And Adding Fluid....67
      Replacing Hydraulic Filter....67
      Hydraulic Breather Cap....67
      Replacing Hydraulic Fluid....67
    TRACK ROLLER AND IDLER LUBRICATION....68
    LUBRICATION OF THE BOBCAT LOADER....69
    PIVOT PINS....70
    BOB-TACH....70
      Inspection and Maintenance....70
    PARKING BRAKE LUBRICATION....71
  SPECIFICATIONS....73
    MINI TRACK LOADER SPECIFICATIONS....75
      Performance Specifications....75
      Engine....75
      Loader Controls....76
      Drive System....76
      Hydraulic System....76
      Electrical System....76
      Standard Instrument Panel....76
      Capacity....76
    ADDITIONAL PUBLICATIONS and TRAINING MATERIALS....77
  WARRANTY....79
6901510 (3-06) - MT50 Mini Track Loader Service Manual....81
  MAINTENANCE SAFETY....83
  ALPHABETICAL INDEX....85
  CONTENTS....87
    FOREWORD....88
    SAFETY INSTRUCTIONS....91
      Fire Prevention....93
    SERIAL NUMBER LOCATIONS....95
      Loader Serial Number....95
      Engine Serial Number....95
    DELIVERY REPORT....95
    BOBCAT LOADER INDENTIFICATION....96
  SAFETY AND MAINTENANCE....97
    LIFTING AND BLOCKING THE LOADER....99
      Procedure....99
      Four Point Lift....100
    LIFT ARM SUPPORT DEVICE....101
      Installing Lift Arm Support Device....101
      Removing Lift Arm Support Device....101
    TRANSPORTING THE BOBCAT LOADER....103
      Procedure....103
    TOWING THE LOADER....105
      Procedure....105
    SERVICE SCHEDULE....107
      Chart....107
    AIR CLEANER SERVICE....109
      Replacing the Filter Element....109
    ENGINE COOLING SYSTEM....111
      Checking The Coolant Level....111
      Cleaning The Cooling System....111
      Replacing The Coolant....112
    FUEL SYSTEM....113
      Fuel Specifications....113
      Filling The Fuel Tank....113
      Fuel Filter....114
      Removing Air From The Fuel System....114
    ENGINE LUBRICATION SYSTEM....115
      Checking Engine Oil....115
      Oil Chart....115
      Replacing Oil And Filter....115
    HYDRAULIC SYSTEM....119
      Checking And Adding Fluid....119
      Replacing Hydraulic Filter....119
      Hydraulic Breather Cap....119
      Replacing Hydraulic Fluid....119
    BOB-TACH....121
      Inspection and Maintenance....121
    LUBRICATION OF THE BOBCAT LOADER....123
      Procedure....123
      Pivot Pins....124
    SPARK ARRESTOR MUFFLER....125
      Servicing....125
  HYDRAULIC SYSTEM....127
    HYDRAULIC SCHEMATICS....131
    HYDRAULIC SYSTEM INFORMATION....137
      Workgroup Troubleshooting Chart....141
      Hydraulic Function Troubleshooting....142
      Hydraulic Drive Troubleshooting Chart....143
    CYLINDER (LIFT)....145
      Checking The Lift Cylinder(s)....145
      Removal And Installation....145
      Parts Identification....147
      Disassembly And Assembly....148
    CYLINDER (TILT)....151
      Checking The Tilt Cylinder....151
      Removal And Installation....151
      Parts Identification....153
      Disassembly And Assembly....154
    MAIN RELIEF VALVE....157
      Checking (Workgroup Hydraulic Control Valve)....157
      Removal And Installation (Workgroup Hydraulic Control Valve)....159
      Checking (Left Drive)....159
      Adjustment (Left Drive)....161
      Removal And Installation (Left Drive)....162
      Checking (Right Drive)....163
      Adjustment (Right Drive)....164
      Removal And Installation (Right Drive)....165
    PORT RELIEF VALVE....167
      Checking The Port Relief Valves (Lift)....167
      Adjusting The Port Relief Valves (Lift)....168
      Removal And Installation (Lift)....169
      Checking The Port Relief Valves (Tilt)....170
      Adjusting The Port Relief Valves (Tilt)....171
      Removal And Installation (Tilt)....172
    HYDRAULIC CONTROL VALVE (DRIVE)....173
      Removal And Installation....173
      Disassembly....179
      Assembly....197
    HYDRAULIC CONTROL VALVE (WORK GROUP)....215
      Removal And Installation....215
      Disassembly....217
      Assembly....239
    HYDRAULIC PUMP (ALUMINMUM) (S/N 520611905 & Below)....259
      Check The Output Of The Hydraulic Pump....259
      Removal And Installation....260
      Coupler Removal And Installation....261
      Parts Identification....262
      Disassembly And Assembly....263
      Inspection....268
    HYDRAULIC PUMP (CAST IRON) (S/N 520611906 & above)....269
      Check The Output Of The Hydraulic Pump....269
      Removal And Installation....271
      Parts Identification....272
      Disassembly And Assembly....273
    HYDRAULIC FILTER....277
      Housing Removal And Installation....277
    HYDRAULIC FLUID RESERVOIR....279
      Removal And Installation....279
    DRIVE MOTOR....281
      Removal And Installation....281
      Parts Identification....283
      Disassembly....284
      Inspection....290
      Assembly....292
    COUNTERBALANCE VALVE....301
      Removal And Installation....301
      Disassembly And Assembly....302
    SPEED CONTROL VALVE....303
      Removal And Installation (S/N 520612036 & Below)....303
      Removal And Installation (S/N 520612036 & Below) (Cont?d)....304
    SPEED CONTROL VALVE....305
      Removal And Installation (S/N 520612037 & Above)....305
      Removal And Installation (S/N 520612037 & Above) (Cont?d)....306
      Parts Identification....307
      Disassembly And Assembly....308
    SINGLE INLET MODE SELECT VALVE....311
      Removal And Installation (S/N 520612036 & Below)....311
      Parts Identification (S/N 520612036 & Below)....312
      Disassembly And Assembly (S/N 520612036 & Below)....313
      Removal And Installation (S/N 520612037 & Above)....316
      Parts Identification (S/N 520612037 & Above)....317
      Disassembly And Assembly (S/N 520612037 & Above)....318
    DUAL INLET MODE SELECT VALVE....321
      Removal And Installation (S/N 520612036 & Below)....321
      Parts Identification (S/N 520612036 & Below)....322
      Removal And Installation (S/N 520612037 & Above)....326
      Parts Identification (S/N 520612037 & Above)....327
    LIFT LOCK VALVE....331
      Solenoid Testing....331
      Solenoid Removal And Installation....331
      Removal And Installation....332
      Disassembly And Assembly....333
    TILT LOCK VALVE....335
      Solenoid Testing....335
      Solenoid Removal And Installation....335
      Removal And Installation....336
      Disassembly And Assembly....337
    REVERSE SPEED LIMIT VALVE....339
      Removal and Installation....339
      Disassembly and Assembly....340
    HYDRAULIC OIL COOLER....343
      Removal And Installation....343
  DRIVE SYSTEM....347
    PARKING BRAKE....349
      Handle Removal And Installation....349
      Cable Removal And Installation....349
      Cable Adjustment....350
      Pin Lubrication....351
    DRIVE COMPONENTS....353
      Track Tension....353
      Adjusting The Tracks....353
      Track Removal and Installation....354
      Track Idler Removal and Installation....355
      Parts Identification (Track Idler)....356
      Track Idler Disassembly and Assembly....357
      Track Tensioner Disassembly and Assembly....358
      Track Roller Removal and Installation....358
      Parts Identification (Track Roller)....359
      Track Roller Disassembly and Assembly....360
      Track Frame Removal and Installation....360
      Track Damage Identification....362
    LEFT AND RIGHT TRAVEL ADJUSTMENT....373
      Description....373
      Adjustment (S/N 520611001 thru 520611064, 520611066, 520611068 thru 520611072, 520611074 thru 520611080, 520611082 thru 520611085, 520611087, 520611088, 520611090, 520611091, 520611093, 520611095, 520611096, 520611098, 520611100 thru 52061110...373
      Adjustment (S/N 520611065, 520611067, 520611073, 520611081, 520611086, 520611089, 520611092, 520611094, 520611097, 520611099 thru 520611105, 520611107 thru 520611118, 520611120 thru 520611129)....375
  MAIN FRAME....377
    BOB-TACH....379
      Removal....379
      Installation....380
      Seal Removal And Installation....381
      Lever And Wedge Removal....381
    LIFT ARM....383
      Removal And Installation....383
    REAR DOOR....385
      Removal And Installation....385
    FUEL TANK....387
      Removal And Installation....387
    CONTROL PANEL PLATE....389
      Removal and Installation....389
    HAND BAR....391
      Removal and Installation....391
      Adjustment....391
    ENGINE COVER....393
      Removal and Installation....393
      Disassembly And Assembly....393
    COUNTERWEIGHT....395
      Removal And Installation....395
    REVERSE STOP PANEL....397
      Description....397
      Inspecting Function....397
      Adjusting....397
      Removal And Installation....398
  ELECTRICAL SYSTEM & ANALYSIS....399
    ELECTRICAL SCHEMATICS....401
    ELECTRICAL SYSTEM INFORMATION....404
      Electrical Troubleshooting Chart....404
    BATTERY....406
      Removal and Installation....406
      Servicing....407
      Using A Booster Battery (Jump Starting)....407
    ALTERNATOR....410
      Removal and Installation (S/N 520611001-520611125)....410
      Removal and Installation (S/N 520611126 & Above)....410
    ALTERNATOR (CONT?D)....411
      Adjusting The Alternator Belt....411
      Description....412
      Tests....413
      Alternator Output Test....413
      Full Field Test....413
      Alternator Regulator Test....414
      Alternator Regulator Test Using Voltmeter....414
    STARTER....416
      Removal And Installation....416
      Checking The Starter In The Loader....417
      Parts Identification....418
      Disassembly....419
      Inspection And Repair....424
      No Load Test....428
      Assembly....429
    INSTRUMENT PANEL....436
      Removal And Installation....436
      Disassembly And Assembly....436
    BLOWER ASSEMBLY....438
      Removal And Installation....438
      Parts Identification....440
      Disassembly And Assembly....441
    ELECTRICAL ATTACHMENT CONTROL REFERENCE....442
      Attachment Control Identification Chart....442
  ENGINE SERVICE....444
    ENGINE INFORMATION AND TESTING....446
      Engine Troubleshooting Chart....446
    ENGINE SPEED CONTROL....448
      Removal And Installation....448
      Disassembly And Assembly....448
      Cable Removal and Installation....448
    MUFFLER....450
      Removal And Installation....450
    AIR CLEANER....452
      Housing Removal and Installation....452
    RADIATOR....454
      Removal And Installation....454
    ENGINE COMPONENTS AND TESTING....456
      Valve Clearance Adjustment....456
      Fuel Injection Pump Check....457
      Fuel Lift Pump Removal And Installation....457
      Fuel Injection Pump Removal And Installation....458
      Fuel Injection Pump Timing....459
      Fuel Injector Nozzles Checking....460
      Fuel Injector Nozzles Removal....461
      Fuel Injector Nozzles Installation....462
      Glow Plugs Checking....463
      Engine Compression Test Procedure....463
    ENGINE....464
      Removal And Installation....464
      Engine Mount Replacement....467
    FRONT ENGINE MOUNT....470
      Removal and Installation....470
    SIDE ENGINE MOUNTS....472
      Removal and Installation....472
    FLYWHEEL AND HOUSING....474
      Flywheel Removal And Installation....474
      Hydraulic Pump Coupler Removal And Installation (Early Version)....474
      Hydraulic Pump Coupler Removal And Installation (Later Version)....475
      Flywheel Ring Gear....475
    RECONDITIONING THE ENGINE....476
      Cylinder Head Removal And Installation....476
      Cylinder Head Inspection....477
      Cylinder Head Top Clearance....478
      Rocker Arm And Shaft Checking....478
      Valve Removal....479
      Valve Spring Checking....480
      Valve Guide Checking....481
      Reconditioning The Valve And Valve Seat....482
      Timing Gearcase Cover Removal And Installation....483
      Idler Gear And Camshaft Removal And Installation....485
      Servicing The Idler Gear And Shaft....487
      Checking Timing Gear Backlash....488
      Fuel Camshaft Removal And Installation....489
      Governor....489
      Crankshaft Gear Removal And Installation....490
      Oil Pump Removal And Installation....490
      Oil Pump Service....490
      Checking Engine Oil Pressure....491
      Relief Valve....491
      Piston And Connecting Rod Removal And Installation....492
      Piston And Connecting Rod Servicing....494
      Connecting Rod Alignment....495
      Crankshaft And Bearings Removal And Installation....496
      Inspection Of Crankshaft And Bearings....497
      Cylinder Bore Inspection....499
      Thermostat Removal And Installation....500
      Testing The Thermostat....500
      Water Pump Removal And Installation....501
      Water Pump Disassembly And Assembly....501
  SPECIFICATIONS....502
    LOADER SPECIFICATIONS (MT50)....504
      Loader Dimensions....504
      Performance....505
      Controls....505
      Engine....505
      Hydraulic System....506
      Electrical....506
      Drive System....506
      Capacities....507
      Tracks....507
      Ground Pressure....507
    ENGINE SPECIFICATIONS....508
      Engine....508
      Fuel Injector Nozzles....508
      Fuel Injection Pump....508
      Cylinder Head....508
      Valves....508
      Valve Springs....508
      Rocker Arms....509
      Camshaft....509
      Cylinders....509
      Piston Rings....509
      Pistons....510
      Crankshaft....510
      Oil Pump....510
      Thermostat....510
      Engine Bolt Torque....511
      Re-Grinding The Crankshaft....512
    LOADER TORQUE....514
      Specifications....514
    TORQUE SPECIFICATIONS FOR BOLTS....516
      Torque For General SAE Bolts....516
      Torque For General Metric Bolts....517
      Torque For Kubota Metric Engine Bolts....518
    HYDRAULIC CONNECTION SPECIFICATIONS....520
      O-ring Face Seal Connection....520
      Straight Thread O-ring Fitting....521
      Tubelines And Hoses....521
      Flare Fitting....521
      O-ring Flare Fitting....522
      Port Seal Fitting....524
    HYDRAULIC FLUID SPECIFICATIONS....526
      Specifications....526
    CONVERSIONS....528
      Decimal And Millimeter Equivalents....528
  SMR....530
    Revision No: MT50-1....530
    Revision No: MT50-2....532
6901510 (6-12) - MT50 Mini Track Loader Service Manual....534
  MAINTENANCE SAFETY....536
  ALPHABETICAL INDEX....538
  CONTENTS....540
    FOREWORD....541
    SAFETY INSTRUCTIONS....544
      Fire Prevention....546
    SERIAL NUMBER LOCATIONS....548
      Loader Serial Number....548
      Engine Serial Number....548
    DELIVERY REPORT....548
    BOBCAT LOADER INDENTIFICATION....549
  SAFETY AND MAINTENANCE....550
    LIFTING AND BLOCKING THE LOADER....552
      Procedure....552
      Four Point Lift....553
    LIFT ARM SUPPORT DEVICE....554
      Installing Lift Arm Support Device....554
      Removing Lift Arm Support Device....554
    TRANSPORTING THE BOBCAT LOADER....556
      Procedure....556
    TOWING THE LOADER....558
      Procedure....558
    SERVICE SCHEDULE....560
      Chart....560
    AIR CLEANER SERVICE....562
      Replacing the Filter Element....562
    ENGINE COOLING SYSTEM....564
      Checking The Coolant Level....564
      Cleaning The Cooling System....564
      Replacing The Coolant....565
    FUEL SYSTEM....566
      Fuel Specifications....566
      Filling The Fuel Tank....566
      Fuel Filter....567
      Removing Air From The Fuel System....567
    ENGINE LUBRICATION SYSTEM....568
      Checking Engine Oil....568
      Oil Chart....568
      Replacing Oil And Filter....568
    HYDRAULIC SYSTEM....572
      Checking And Adding Fluid....572
      Replacing Hydraulic Filter....572
      Hydraulic Breather Cap....572
      Replacing Hydraulic Fluid....572
    BOB-TACH....574
      Inspection and Maintenance....574
    LUBRICATION OF THE BOBCAT LOADER....576
      Procedure....576
      Pivot Pins....577
    SPARK ARRESTOR MUFFLER....578
      Servicing....578
  HYDRAULIC SYSTEM....580
    HYDRAULIC SCHEMATICS....584
    HYDRAULIC SYSTEM INFORMATION....590
      Workgroup Troubleshooting Chart....594
      Hydraulic Function Troubleshooting....595
      Hydraulic Drive Troubleshooting Chart....596
    CYLINDER (LIFT)....598
      Checking The Lift Cylinder(s)....598
      Removal And Installation....598
      Parts Identification....600
      Disassembly And Assembly....601
    CYLINDER (TILT)....604
      Checking The Tilt Cylinder....604
      Removal And Installation....604
      Parts Identification....606
      Disassembly And Assembly....607
    MAIN RELIEF VALVE....610
      Checking (Workgroup Hydraulic Control Valve)....610
      Removal And Installation (Workgroup Hydraulic Control Valve)....612
      Checking (Left Drive)....612
      Adjustment (Left Drive)....614
      Removal And Installation (Left Drive)....615
      Checking (Right Drive)....616
      Adjustment (Right Drive)....617
      Removal And Installation (Right Drive)....618
    PORT RELIEF VALVE....620
      Checking The Port Relief Valves (Lift)....620
      Adjusting The Port Relief Valves (Lift)....621
      Removal And Installation (Lift)....622
      Checking The Port Relief Valves (Tilt)....623
      Adjusting The Port Relief Valves (Tilt)....624
      Removal And Installation (Tilt)....625
    HYDRAULIC CONTROL VALVE (DRIVE)....626
      Removal And Installation....626
      Disassembly....632
      Assembly....650
    HYDRAULIC CONTROL VALVE (WORK GROUP)....668
      Removal And Installation....668
      Disassembly....670
      Assembly....692
    HYDRAULIC PUMP (ALUMINMUM) (S/N 520611905 & Below)....712
      Check The Output Of The Hydraulic Pump....712
      Removal And Installation....713
      Coupler Removal And Installation....714
      Parts Identification....715
      Disassembly And Assembly....716
      Inspection....721
    HYDRAULIC PUMP (CAST IRON) (S/N 520611906 & above)....722
      Check The Output Of The Hydraulic Pump....722
      Removal And Installation....724
      Parts Identification....725
      Disassembly And Assembly....726
    HYDRAULIC FILTER....730
      Housing Removal And Installation....730
    HYDRAULIC FLUID RESERVOIR....732
      Removal And Installation....732
    DRIVE MOTOR....734
      Removal And Installation....734
      Parts Identification....736
      Disassembly....737
      Inspection....743
      Assembly....745
    COUNTERBALANCE VALVE....754
      Removal And Installation....754
      Disassembly And Assembly....755
    SPEED CONTROL VALVE....756
      Removal And Installation (S/N 520612036 & Below)....756
      Removal And Installation (S/N 520612036 & Below) (Cont?d)....757
    SPEED CONTROL VALVE....758
      Removal And Installation (S/N 520612037 & Above)....758
      Removal And Installation (S/N 520612037 & Above) (Cont?d)....759
      Parts Identification....760
      Disassembly And Assembly....761
    SINGLE INLET MODE SELECT VALVE....764
      Removal And Installation (S/N 520612036 & Below)....764
      Parts Identification (S/N 520612036 & Below)....765
      Disassembly And Assembly (S/N 520612036 & Below)....766
      Removal And Installation (S/N 520612037 & Above)....769
      Parts Identification (S/N 520612037 & Above)....770
      Disassembly And Assembly (S/N 520612037 & Above)....771
    DUAL INLET MODE SELECT VALVE....774
      Removal And Installation (S/N 520612036 & Below)....774
      Parts Identification (S/N 520612036 & Below)....775
      Removal And Installation (S/N 520612037 & Above)....779
      Parts Identification (S/N 520612037 & Above)....780
    LIFT LOCK VALVE....784
      Solenoid Testing....784
      Solenoid Removal And Installation....784
      Removal And Installation....785
      Disassembly And Assembly....786
    TILT LOCK VALVE....788
      Solenoid Testing....788
      Solenoid Removal And Installation....788
      Removal And Installation....789
      Disassembly And Assembly....790
    REVERSE SPEED LIMIT VALVE....792
      Removal and Installation....792
      Disassembly and Assembly....793
    HYDRAULIC OIL COOLER....796
      Removal And Installation....796
  DRIVE SYSTEM....800
    PARKING BRAKE....802
      Handle Removal And Installation....802
      Cable Removal And Installation....802
      Cable Adjustment....803
      Pin Lubrication....804
    DRIVE COMPONENTS....806
      Track Tension....806
      Adjusting The Tracks....806
      Track Removal and Installation....807
      Track Idler Removal and Installation....808
      Parts Identification (Track Idler)....809
      Track Idler Disassembly and Assembly....810
      Track Tensioner Disassembly and Assembly....811
      Track Roller Removal and Installation....811
      Parts Identification (Track Roller)....812
      Track Roller Disassembly and Assembly....813
      Track Frame Removal and Installation....813
      Track Damage Identification....815
    LEFT AND RIGHT TRAVEL ADJUSTMENT....826
      Description....826
      Adjustment (S/N 520611001 thru 520611064, 520611066, 520611068 thru 520611072, 520611074 thru 520611080, 520611082 thru 520611085, 520611087, 520611088, 520611090, 520611091, 520611093, 520611095, 520611096, 520611098, 520611100 thru 52061110...826
      Adjustment (S/N 520611065, 520611067, 520611073, 520611081, 520611086, 520611089, 520611092, 520611094, 520611097, 520611099 thru 520611105, 520611107 thru 520611118, 520611120 thru 520611129)....828
  MAIN FRAME....830
    BOB-TACH....832
      Removal....832
      Installation....833
      Seal Removal And Installation....834
      Lever And Wedge Removal....834
    LIFT ARM....836
      Removal And Installation....836
    REAR DOOR....838
      Removal And Installation....838
    FUEL TANK....840
      Removal And Installation....840
    CONTROL PANEL PLATE....842
      Removal and Installation....842
    HAND BAR....844
      Removal and Installation....844
      Adjustment....844
    ENGINE COVER....846
      Removal and Installation....846
      Disassembly And Assembly....846
    COUNTERWEIGHT....848
      Removal And Installation....848
    REVERSE STOP PANEL....850
      Description....850
      Inspecting Function....850
      Adjusting....850
      Removal And Installation....851
  ELECTRICAL SYSTEM & ANALYSIS....852
    ELECTRICAL SCHEMATICS....854
    ELECTRICAL SYSTEM INFORMATION....858
      Electrical Troubleshooting Chart....858
    BATTERY....860
      Removal and Installation....860
      Servicing....861
      Using A Booster Battery (Jump Starting)....861
    ALTERNATOR....864
      Removal and Installation (S/N 520611001-520611125)....864
      Removal and Installation (S/N 520611126 & Above)....864
    ALTERNATOR (CONT?D)....865
      Adjusting The Alternator Belt....865
      Description....866
      Tests....867
      Alternator Output Test....867
      Full Field Test....867
      Alternator Regulator Test....868
      Alternator Regulator Test Using Voltmeter....868
    STARTER....870
      Removal And Installation....870
      Checking The Starter In The Loader....871
      Parts Identification....872
      Disassembly....873
      Inspection And Repair....878
      No Load Test....882
      Assembly....883
    INSTRUMENT PANEL....890
      Removal And Installation....890
      Disassembly And Assembly....890
    BLOWER ASSEMBLY....892
      Removal And Installation....892
      Parts Identification....894
      Disassembly And Assembly....895
    ELECTRICAL ATTACHMENT CONTROL REFERENCE....896
      Attachment Control Identification Chart....896
  ENGINE SERVICE....898
    ENGINE INFORMATION AND TESTING....900
      Engine Troubleshooting Chart....900
    ENGINE SPEED CONTROL....902
      Removal And Installation....902
      Disassembly And Assembly....902
      Cable Removal and Installation....902
    MUFFLER....904
      Removal And Installation....904
    AIR CLEANER....906
      Housing Removal and Installation....906
    RADIATOR....908
      Removal And Installation....908
    ENGINE COMPONENTS AND TESTING....910
      Valve Clearance Adjustment....910
      Fuel Injection Pump Check....911
      Fuel Lift Pump Removal And Installation....911
      Fuel Injection Pump Removal And Installation....912
      Fuel Injection Pump Timing....913
      Fuel Injector Nozzles Checking....914
      Fuel Injector Nozzles Removal....915
      Fuel Injector Nozzles Installation....916
      Glow Plugs Checking....917
      Engine Compression Test Procedure....917
    ENGINE....918
      Removal And Installation....918
      Engine Mount Replacement....921
    FRONT ENGINE MOUNT....924
      Removal and Installation....924
    SIDE ENGINE MOUNTS....926
      Removal and Installation....926
    FLYWHEEL AND HOUSING....928
      Flywheel Removal And Installation....928
      Hydraulic Pump Coupler Removal And Installation (Early Version)....928
      Hydraulic Pump Coupler Removal And Installation (Later Version)....929
      Flywheel Ring Gear....929
    RECONDITIONING THE ENGINE....930
      Cylinder Head Removal And Installation....930
      Cylinder Head Inspection....931
      Cylinder Head Top Clearance....932
      Rocker Arm And Shaft Checking....932
      Valve Removal....933
      Valve Spring Checking....934
      Valve Guide Checking....935
      Reconditioning The Valve And Valve Seat....936
      Timing Gearcase Cover Removal And Installation....937
      Idler Gear And Camshaft Removal And Installation....939
      Servicing The Idler Gear And Shaft....941
      Checking Timing Gear Backlash....942
      Fuel Camshaft Removal And Installation....943
      Governor....943
      Crankshaft Gear Removal And Installation....944
      Oil Pump Removal And Installation....944
      Oil Pump Service....944
      Checking Engine Oil Pressure....945
      Relief Valve....945
      Piston And Connecting Rod Removal And Installation....946
      Piston And Connecting Rod Servicing....948
      Connecting Rod Alignment....949
      Crankshaft And Bearings Removal And Installation....950
      Inspection Of Crankshaft And Bearings....951
      Cylinder Bore Inspection....953
      Thermostat Removal And Installation....954
      Testing The Thermostat....954
      Water Pump Removal And Installation....955
      Water Pump Disassembly And Assembly....955
  SPECIFICATIONS....956
    LOADER SPECIFICATIONS (MT50)....958
      Loader Dimensions....958
      Performance....959
      Controls....959
      Engine....959
      Hydraulic System....960
      Electrical....960
      Drive System....960
      Capacities....961
      Tracks....961
      Ground Pressure....961
    ENGINE SPECIFICATIONS....962
      Engine....962
      Fuel Injector Nozzles....962
      Fuel Injection Pump....962
      Cylinder Head....962
      Valves....962
      Valve Springs....962
      Rocker Arms....963
      Camshaft....963
      Cylinders....963
      Piston Rings....963
      Pistons....964
      Crankshaft....964
      Oil Pump....964
      Thermostat....964
      Engine Bolt Torque....965
      Re-Grinding The Crankshaft....966
    LOADER TORQUE....968
      Specifications....968
    TORQUE SPECIFICATIONS FOR BOLTS....970
      Torque For General SAE Bolts....970
      Torque For General Metric Bolts....971
      Torque For Kubota Metric Engine Bolts....972
    HYDRAULIC CONNECTION SPECIFICATIONS....974
      O-ring Face Seal Connection....974
      Straight Thread O-ring Fitting....975
      Tubelines And Hoses....975
      Flare Fitting....975
      O-ring Flare Fitting....976
      Port Seal Fitting....978
    HYDRAULIC FLUID SPECIFICATIONS....980
      Specifications....980
    CONVERSIONS....982
      Decimal And Millimeter Equivalents....982
  SMR....984
    Revision No: MT50-1....984
    Revision No: MT50-2....986
    Revision No: MT50-3....988
6902524 (10-04) - MT52 Operation & Maintenance Manual....990
  OPERATOR SAFETY WARNINGS....992
  CONTENTS....994
  FOREWORD....996
    BOBCAT COMPANY IS ISO 9001:2000 CERTIFIED....998
    REGULAR MAINTENANCE ITEMS....998
    MOTOR OIL....998
    SERIAL NUMBER LOCATIONS....999
    MINI LOADER SERIAL NUMBER....999
    ENGINE SERIAL NUMBER....999
    DELIVERY REPORT....999
    MACHINE IDENTIFICATION....1000
    FEATURES, ACCESSORIES AND ATTACHMENTS....1001
      Standard Items....1001
      Options and Accessories....1001
      Attachments....1001
  SAFETY....1002
    SAFETY INSTRUCTIONS....1004
      Before Operation....1004
      Safe Operation Is The Operator?s Responsibility....1005
      Safe Operation Needs A Qualified Operator....1005
      Fire Prevention....1006
    MACHINE SIGNS (DECALS)....1007
  OPERATING INSTRUCTIONS....1010
    CONTROLS IDENTIFICATION....1012
    CONTROLS OPERATION....1012
    PARKING BRAKE....1013
    ENGINE SPEED CONTROL....1013
    DRIVING AND STEERING THE MINI LOADER....1014
    REVERSE TRAVEL SPEED CONTROL....1015
    HYDRAULIC CONTROLS....1016
      Lift Arm Operation....1016
      Tilt Operation....1016
      Front Auxiliary Hydraulics....1016
      Releasing Hydraulic Pressure (Loader and Attachment)....1016
      Quick Couplers....1017
    LIFT ARM BY-PASS CONTROL....1017
    STOPPING THE BOBCAT MINI LOADER....1018
    REVERSE STOP PANEL....1018
    RIDE-ON PLATFORM (HINGED) (OPTION)....1019
      Installing Platform....1019
    DAILY INSPECTION....1020
      Daily Inspection and Maintenance:....1020
    PRE-STARTING PROCEDURE....1021
    STARTING THE ENGINE....1022
      Cold Temperature Starting....1023
      Warming the Hydraulic System....1023
    STOPPING THE ENGINE....1023
    ATTACHMENTS AND BUCKETS....1024
      Pallet Forks....1024
      Installing The Bucket Or Attachment....1025
      Removing The Bucket Or Attachment....1025
    OPERATING PROCEDURE....1026
      Inspect The Work Area....1026
      Driving On Rough Terrain And Over Curbs....1026
      Operating On Slopes....1027
      Filling the Bucket....1028
      Emptying the Bucket....1028
      Leveling The Ground Using The Lift Arms In Float Position....1029
      Digging Into the Ground....1029
      Backfilling....1030
    PARKING THE BOBCAT MINI LOADER....1030
    TRANSPORTING THE BOBCAT LOADER....1031
    FOUR POINT LIFT....1032
  PREVENTIVE MAINTENANCE....1034
    MAINTENANCE SAFETY....1036
    SERVICE SCHEDULE....1038
      Chart....1038
    LIFT ARM SUPPORT DEVICE....1039
      Installing Lift Arm Support Device....1039
      Removing Lift Arm Support Device....1039
    ENGINE COVER....1040
    TRACK TENSION....1041
      Adjusting The Tracks....1041
    ALTERNATOR BELT....1042
      Adjusting The Alternator Belt....1042
    REAR DOOR....1042
    AIR CLEANER SERVICE....1043
      Replacing the Filter....1043
    FUEL SYSTEM....1044
      Fuel Specifications....1044
      Filling the Fuel Tank....1044
      Fuel Filter....1045
      Removing Air From The Fuel System....1045
    REVERSE STOP PANEL....1046
      Inspecting Function Of Reverse Stop Panel....1046
    LIFT AND TILT FUNCTION LOCKOUTS....1046
      Inspecting Deactivation of Lift and Tilt Functions....1046
    LIFT ARM BY-PASS CONTROL....1047
      Inspecting The Lift Arm By-Pass Control....1047
    NEUTRAL START INTERLOCKS....1047
      Inspecting Traction Drive Interlock....1047
      Inspecting Auxiliary Hydraulic Interlock....1047
      Inspecting Lift Arm Function Interlock....1047
    ENGINE LUBRICATION SYSTEM....1048
      Checking Engine Oil....1048
      Oil Chart....1048
      Replacing Oil And Filter....1048
    ENGINE COOLING SYSTEM....1050
      Checking The Coolant Level....1050
      Cleaning The Cooling System....1051
      Replacing the Coolant....1051
    SPARK ARRESTOR MUFFLER....1053
    ELECTRICAL SYSTEM....1054
      Description....1054
      Checking Fuses And Relays....1054
      Fuses....1054
      Relays....1054
      Cleaning Battery Terminals....1054
      Using A Booster Battery (Jump Starting)....1055
      Removing And Installing The Battery....1056
    HYDRAULIC SYSTEM....1057
      Checking And Adding Fluid....1057
      Replacing Hydraulic Filter....1057
      Hydraulic Breather Cap....1057
      Replacing Hydraulic Fluid....1057
    LUBRICATION OF THE BOBCAT MINI LOADER....1058
    PIVOT PINS....1059
    BOB-TACH....1059
      Inspection and Maintenance....1059
    TRACK ROLLER AND IDLER LUBRICATION....1060
    PARKING BRAKE LUBRICATION....1060
  MACHINE SIGN TRANSLATIONS....1062
    SERVICE SCHEDULE (6737038)....1064
    SERVICE SCHEDULE (6737038)....1065
    WARNING (6737039)....1066
    WARNING (6737039)....1067
    WARNING (6737040)....1068
    WARNING (6737041)....1069
    DANGER (6732142)....1070
    WARNING (6576048)....1071
    WARNING (6817225)....1071
    WARNING (6804233)....1071
    LIFT ARM SUPPORT DEVICE (6737045)....1072
  SPECIFICATIONS....1074
    LOADER SPECIFICATIONS (MT52)....1076
      Machine Dimensions....1076
      Performance....1077
      Controls....1077
      Engine....1077
      Electrical....1077
      Hydraulic System....1078
      Drive System....1078
      Capacities....1078
    ADDITIONAL PUBLICATIONS AND TRAINING MATERIALS....1079
  WARRANTY....1080
6902525 (3-06) - MT52 Service Manual....1082
  MAINTENANCE SAFETY....1084
  ALPHABETICAL INDEX....1086
  CONTENTS....1088
    FOREWORD....1089
    SAFETY INSTRUCTIONS....1092
      Fire Prevention....1094
    SERIAL NUMBER LOCATION....1096
      Loader Serial Number....1096
      Engine Serial Number....1096
    DELIVERY REPORT....1097
    BOBCAT LOADER IDENTIFICATION....1098
  SAFETY AND MAINTENANCE....1100
    LIFTING AND BLOCKING THE LOADER....1102
      Procedure....1102
      Four Point Lift....1103
    LIFT ARM SUPPORT DEVICE....1104
      Installing Lift Arm Support Device....1104
      Removing Lift Arm Support Device....1105
    TRANSPORTING THE BOBCAT LOADER....1106
      Procedure....1106
    TOWING THE LOADER....1108
      Procedure....1108
    SERVICE SCHEDULE....1110
      Chart....1110
    AIR CLEANER SERVICE....1112
      Replacing the Filter Element....1112
    ENGINE COOLING SYSTEM....1114
      Checking The Coolant Level....1114
      Cleaning The Cooling System....1114
      Replacing The Coolant....1115
    FUEL SYSTEM....1118
      Fuel Specifications....1118
      Filling The Fuel Tank....1118
      Fuel Filter....1119
      Removing Air From The Fuel System....1119
    ENGINE LUBRICATION SYSTEM....1120
      Checking Engine Oil....1120
      Oil Chart....1120
      Replacing Oil And Filter....1120
    HYDRAULIC / HYDROSTATIC SYSTEM....1122
      Checking And Adding Fluid....1122
      Replacing Hydraulic Filter....1122
      Hydraulic Breather Cap....1122
      Replacing Hydraulic Fluid....1123
    BOB-TACH....1124
      Inspection And Maintenance....1124
    LUBRICATION OF THE BOBCAT MINI LOADER....1126
      Procedure....1126
      Parking Brake Lubrication....1127
      Pivot Pins....1128
    SPARK ARRESTOR MUFFLER....1130
      Servicing....1130
    CONTROLS....1132
      Reverse Stop Panel....1132
      Lift And Tilt Function Lockouts....1132
      Lift Arm By-Pass Controls....1132
      Neutral Start Interlocks....1133
    ELECTRICAL SYSTEM....1134
      Description....1134
      Checking Fuses And Relays....1134
      Fuses....1134
      Relays....1134
      Cleaning Battery Terminals....1135
      Using A Booster Battery (Jump Starting)....1136
      Removing And Installing The Battery....1137
  HYDRAULIC SYSTEM....1138
    HYDRAULIC/HYDROSTATIC SCHEMATICS....1140
    HYDRAULIC SYSTEM INFORMATION....1142
      Workgroup Troubleshooting Chart....1146
      Hydraulic Function Troubleshooting....1147
    CYLINDER (LIFT)....1148
      Checking The Lift Cylinder(s)....1148
      Removal And Installation....1149
      Parts Identification....1151
      Disassembly And Assembly....1152
    CYLINDER (TILT)....1156
      Checking The Tilt Cylinder....1156
      Removal And Installation....1157
      Rod End Pivot Pin Bushing And Seal Replacement....1158
      Parts Identification....1159
      Disassembly And Assembly....1160
    MAIN RELIEF VALVE....1162
      Checking (Hydraulic Control Valve)....1162
      Removal And Installation (Hydraulic Control Valve)....1164
    PORT RELIEF VALVES....1166
      Checking The Port Relief Valves (Lift)....1166
      Removal And Installation (Lift)....1168
      Checking The Port Relief Valves (Tilt)....1169
      Removal And Installation (Tilt)....1171
    HYDRAULIC CONTROL VALVE....1172
      Removal And Installation....1172
      Parts Identification....1175
      Identification Chart....1177
      Disassembly and Assembly....1178
    HYDRAULIC PUMP....1196
      Check The Output Of The Hydraulic Pump....1196
      Removal And Installation....1197
      Parts Identification....1199
      Disassembly And Assembly....1200
      Inspection....1203
    HYDRAULIC FILTER....1204
      Housing Removal And Installation....1204
    HYDRAULIC FLUID RESERVOIR....1206
      Removal And Installation....1206
    LIFT LOCK VALVE....1208
      Solenoid Testing....1208
      Solenoid Removal And Installation....1209
      Removal And Installation....1210
      Disassembly And Assembly....1211
    TILT LOCK VALVE....1214
      Solenoid Testing....1214
      Solenoid Removal And Installation....1214
      Removal And Installation....1216
      Disassembly And Assembly....1216
    HYDRAULIC OIL COOLER....1218
      Removal And Installation....1218
  HYDROSTATIC SYSTEM....1220
    HYDROSTATIC SYSTEM INFORMATION....1222
      Troubleshooting Chart....1222
      Replenishing Valve Function....1223
    DRIVE MOTOR....1224
      Removal And Installation....1224
      Parts Identification....1227
      Disassembly....1228
      Inspection....1234
      Assembly....1236
    HYDROSTATIC PUMP....1242
      Charge Pressure Sender Removal And Installation....1242
      Checking Charge Pressure....1242
      Replacing Poppet Assembly....1242
      Removal And Installation....1243
      Replenishing/High Pressure Relief Valve....1244
      Disassembly....1245
      Assembly....1251
    DRIVE BELT....1258
      Removing Drive Belt Shield....1258
      Adjusting The Drive Belt Tension....1258
      Drive Belt Replacement....1259
      Tensioner Pulley Removal And Installation....1260
      Drive Belt Alignment....1260
    HYDROSTATIC CONTROLS....1262
      Steering Assembly Identification....1262
      Steering Assembly Removal And Installation....1263
      Steering Linkage Adjustment....1265
      Adjusting Forward Speed Control....1269
      Adjusting Reverse Speed Control....1269
  DRIVE SYSTEM....1270
    PARKING BRAKE....1272
      Handle Removal And Installation....1272
      Cable Removal And Installation....1272
      Cable Adjustment....1273
      Removing The Linkage Assembly....1274
      Brake Pin Lubrication....1275
    DRIVE COMPONENTS....1276
      Track Tension Checking (SN 523611010 & Above)....1276
      Adjusting The Tracks (SN 523611010 & Above)....1276
      Track Tension Checking (SN 523611009 & Below)....1277
      Adjusting The Tracks (SN 523611009 & Below)....1277
      Track Removal and Installation....1278
      Track Frame Removal and Installation....1279
      Rear Idler Removal and Installation....1280
      Parts Identification (Rear Track Idler)....1281
      Rear Idler Disassembly and Assembly....1282
      Front Idler Disassembly And Assembly....1283
      Track Tensioner Disassembly and Assembly....1284
      Track Roller Removal and Installation....1284
      Parts Identification (Track Roller)....1285
      Track Roller Disassembly and Assembly....1286
      Track Damage Identification....1287
  MAIN FRAME....1298
    BOB-TACH....1300
      Removal....1300
      Installation....1301
      Seal Removal And Installation....1302
      Lever And Wedge Removal....1302
    LIFT ARM....1304
      Removal And Installation....1304
    TAILGATE....1308
      Removal And Installation....1308
      Rear Door Panel Removal And Installation....1308
      Tailgate Striker Removal And Installation....1309
      Tailgate Striker Adjustment....1309
      Tailgate Bumper Adjustment....1310
    FUEL TANK....1312
      Removal And Installation....1312
    INSTRUMENT PANEL....1314
      Removal and Installation....1314
    GRAB BAR....1316
      Removal and Installation....1316
    HOOD....1318
      Removal and Installation....1318
      Disassembly And Assembly....1318
      Hood Latch Removal....1319
    REVERSE STOP PANEL....1320
      Description....1320
      Inspecting Function....1320
      Removal And Installation....1320
      Reverse Stop Mechanism Removal And Installation....1321
    BOTTOM ACCESS PANEL....1322
      Removal and Installation....1322
    RIDE-ON PLATFORM....1324
      Removal and Installation....1324
      Tire Removal and Installation....1324
      Caster Removal and Installation....1325
  ELECTRICAL SYSTEM & ANALYSIS....1326
    ELECTRICAL SCHEMATICS....1328
    ELECTRICAL SYSTEM INFORMATION....1332
      Electrical Troubleshooting Chart....1332
    BATTERY....1334
      Removal and Installation....1334
      Servicing....1335
      Using A Booster Battery (Jump Starting)....1335
    ALTERNATOR....1338
      Removal and Installation....1338
      Adjusting The Alternator Belt....1339
      Description....1339
      Tests....1339
      Alternator Output Test....1340
      Full Field Test....1340
      Alternator Regulator Test....1341
      Alternator Regulator Test Using Voltmeter....1341
    STARTER....1342
      Removal And Installation....1342
      Checking The Starter In The Loader....1343
      Parts Identification....1344
      Disassembly....1345
      Inspection And Repair....1350
      No Load Test....1354
      Assembly....1355
    INSTRUMENT PANEL....1362
      Component Removal And Installation....1362
    NEUTRAL START SENSOR....1364
      Description....1364
      Removal And Installation....1364
      Sensor Activation Adjustment....1365
      Sensor Activation Bolt Removal....1365
    ELECTRICAL ATTACHMENT CONTROL REFERENCE....1366
      Attachment Control Identification Chart....1366
  ENGINE SERVICE....1368
    ENGINE INFORMATION AND TESTING....1370
      Engine Troubleshooting Chart....1370
    ENGINE SPEED CONTROL....1372
      Removal And Installation....1372
      Disassembly And Assembly....1373
      Cable Removal and Installation....1373
    MUFFLER....1376
      Removal And Installation....1376
    AIR CLEANER....1378
      Housing Removal and Installation....1378
    RADIATOR....1380
      Removal And Installation....1380
    ENGINE COMPONENTS AND TESTING....1384
      Valve Clearance Adjustment....1384
      Fuel Injection Pump Check....1385
      Fuel Lift Pump Removal And Installation....1386
      Fuel Injection Pump Removal And Installation....1386
      Fuel Injector Nozzles Checking....1388
      Fuel Injector Nozzles Removal....1390
      Fuel Injector Nozzles Installation....1391
      Glow Plugs Checking....1391
      Engine Compression Test Procedure....1392
      Fuel Injection Pump Timing....1393
    ENGINE....1396
      Removal And Installation....1396
      Engine Mount Replacement....1400
    FLYWHEEL....1402
      Flywheel Removal And Installation....1402
      Flywheel Ring Gear Removal And Installation....1402
    RECONDITIONING THE ENGINE....1404
      Cylinder Head Removal And Installation....1404
      Cylinder Head Inspection....1405
      Cylinder Head Top Clearance....1406
      Rocker Arm And Shaft Checking....1406
      Valve Removal....1407
      Valve Spring Checking....1408
      Valve Guide Checking....1409
      Reconditioning The Valve And Valve Seat....1410
      Timing Gearcase Cover Removal And Installation....1411
      Idler Gear And Camshaft Removal And Installation....1413
      Servicing The Idler Gear And Shaft....1415
      Checking Timing Gear Backlash....1416
      Fuel Camshaft Removal And Installation....1417
      Governor....1417
      Crankshaft Gear Removal And Installation....1418
      Oil Pump Removal And Installation....1418
      Oil Pump Service....1418
      Checking Engine Oil Pressure....1419
      Relief Valve....1419
      Piston And Connecting Rod Removal And Installation....1420
      Piston And Connecting Rod Servicing....1422
      Connecting Rod Alignment....1423
      Crankshaft And Bearings Removal And Installation....1424
      Inspection Of Crankshaft And Bearings....1425
      Cylinder Bore Inspection....1428
      Thermostat Removal And Installation....1428
      Testing The Thermostat....1429
      Water Pump Removal And Installation....1429
      Water Pump Disassembly And Assembly....1430
      Energize To Stop Solenoid....1430
    ENGINE MOUNTING BRACKET....1432
      Engine Mounting Bracket Removal And Installation....1432
    HYDRAULIC GEAR PUMP MOUNTING BRACKET....1434
      Hydraulic Gear Pump Mounting Bracket Removal And Installation....1434
      Hydraulic Gear Pump Coupler Removal And Installation....1435
  SPECIFICATIONS....1436
    LOADER SPECIFICATIONS (MT52)....1438
      Loader Dimensions....1438
      Performance....1439
      Controls....1439
      Engine....1439
      Hydraulic System....1440
      Electrical....1440
      Drive System....1440
      Capacities....1441
      Tracks....1441
      Ground Pressure....1441
    ENGINE SPECIFICATIONS....1442
      Engine....1442
      Fuel Injector Nozzles....1442
      Fuel Injection Pump....1442
      Cylinder Head....1442
      Valves....1442
      Valve Springs....1442
      Rocker Arms....1443
      Camshaft....1443
      Cylinders....1443
      Piston Rings....1443
      Pistons....1444
      Crankshaft....1444
      Oil Pump....1444
      Timing Gear....1445
      Thermostat....1445
      Engine Bolt Torque....1446
    TORQUE SPECIFICATIONS FOR BOLTS....1448
      Torque For General SAE Bolts....1448
      Torque For General Metric Bolts....1449
      Torque For Kubota Metric Engine Bolts....1450
    HYDRAULIC CONNECTION SPECIFICATIONS....1452
      O-ring Face Seal Connection....1452
      Straight Thread O-ring Fitting....1453
      Tubelines And Hoses....1453
      Flare Fitting....1453
      O-ring Flare Fitting....1454
      Port Seal Fitting....1456
    HYDRAULIC FLUID SPECIFICATIONS....1458
      Specifications....1458
    CONVERSIONS....1460
      Decimal And Millimeter Equivalents....1460
  SMR....1462
    Revision No: MT52-1....1462
    Revision No: MT52-2....1464
    Revision No: MT52-3....1466
6902525 (6-12) - MT52 Service Manual....1468
  MAINTENANCE SAFETY....1470
  ALPHABETICAL INDEX....1472
  CONTENTS....1474
    FOREWORD....1475
    SAFETY INSTRUCTIONS....1478
      Fire Prevention....1480
    SERIAL NUMBER LOCATION....1482
      Loader Serial Number....1482
      Engine Serial Number....1482
    DELIVERY REPORT....1483
    BOBCAT LOADER IDENTIFICATION....1484
  SAFETY AND MAINTENANCE....1486
    LIFTING AND BLOCKING THE LOADER....1488
      Procedure....1488
      Four Point Lift....1489
    LIFT ARM SUPPORT DEVICE....1490
      Installing Lift Arm Support Device....1490
      Removing Lift Arm Support Device....1491
    TRANSPORTING THE BOBCAT LOADER....1492
      Procedure....1492
    TOWING THE LOADER....1494
      Procedure....1494
    SERVICE SCHEDULE....1496
      Chart....1496
    AIR CLEANER SERVICE....1498
      Replacing the Filter Element....1498
    ENGINE COOLING SYSTEM....1500
      Checking The Coolant Level....1500
      Cleaning The Cooling System....1500
      Replacing The Coolant....1501
    FUEL SYSTEM....1504
      Fuel Specifications....1504
      Filling The Fuel Tank....1504
      Fuel Filter....1505
      Removing Air From The Fuel System....1505
    ENGINE LUBRICATION SYSTEM....1506
      Checking Engine Oil....1506
      Oil Chart....1506
      Replacing Oil And Filter....1506
    HYDRAULIC / HYDROSTATIC SYSTEM....1508
      Checking And Adding Fluid....1508
      Replacing Hydraulic Filter....1508
      Hydraulic Breather Cap....1508
      Replacing Hydraulic Fluid....1509
    BOB-TACH....1510
      Inspection And Maintenance....1510
    LUBRICATION OF THE BOBCAT MINI LOADER....1512
      Procedure....1512
      Parking Brake Lubrication....1513
      Pivot Pins....1514
    SPARK ARRESTOR MUFFLER....1516
      Servicing....1516
    CONTROLS....1518
      Reverse Stop Panel....1518
      Lift And Tilt Function Lockouts....1518
      Lift Arm By-Pass Controls....1518
      Neutral Start Interlocks....1519
    ELECTRICAL SYSTEM....1520
      Description....1520
      Checking Fuses And Relays....1520
      Fuses....1520
      Relays....1520
      Cleaning Battery Terminals....1521
      Using A Booster Battery (Jump Starting)....1522
      Removing And Installing The Battery....1523
  HYDRAULIC SYSTEM....1524
    HYDRAULIC/HYDROSTATIC SCHEMATICS....1526
    HYDRAULIC SYSTEM INFORMATION....1528
      Workgroup Troubleshooting Chart....1532
      Hydraulic Function Troubleshooting....1533
    CYLINDER (LIFT)....1534
      Checking The Lift Cylinder(s)....1534
      Removal And Installation....1535
      Parts Identification....1537
      Disassembly And Assembly....1538
    CYLINDER (TILT)....1542
      Checking The Tilt Cylinder....1542
      Removal And Installation....1543
      Rod End Pivot Pin Bushing And Seal Replacement....1544
      Parts Identification....1545
      Disassembly And Assembly....1546
    MAIN RELIEF VALVE....1548
      Checking (Hydraulic Control Valve)....1548
      Removal And Installation (Hydraulic Control Valve)....1550
    PORT RELIEF VALVES....1552
      Checking The Port Relief Valves (Lift)....1552
      Removal And Installation (Lift)....1554
      Checking The Port Relief Valves (Tilt)....1555
      Removal And Installation (Tilt)....1557
    HYDRAULIC CONTROL VALVE....1558
      Removal And Installation....1558
      Parts Identification....1561
      Identification Chart....1563
      Disassembly and Assembly....1564
    HYDRAULIC PUMP....1582
      Check The Output Of The Hydraulic Pump....1582
      Removal And Installation....1583
      Parts Identification....1585
      Disassembly And Assembly....1586
      Inspection....1589
    HYDRAULIC FILTER....1590
      Housing Removal And Installation....1590
    HYDRAULIC FLUID RESERVOIR....1592
      Removal And Installation....1592
    LIFT LOCK VALVE....1594
      Solenoid Testing....1594
      Solenoid Removal And Installation....1595
      Removal And Installation....1596
      Disassembly And Assembly....1597
    TILT LOCK VALVE....1600
      Solenoid Testing....1600
      Solenoid Removal And Installation....1600
      Removal And Installation....1602
      Disassembly And Assembly....1602
    HYDRAULIC OIL COOLER....1604
      Removal And Installation....1604
  HYDROSTATIC SYSTEM....1606
    HYDROSTATIC SYSTEM INFORMATION....1608
      Troubleshooting Chart....1608
      Replenishing Valve Function....1609
    DRIVE MOTOR....1610
      Removal And Installation....1610
      Parts Identification....1613
      Disassembly....1614
      Inspection....1620
      Assembly....1622
    HYDROSTATIC PUMP....1628
      Charge Pressure Sender Removal And Installation....1628
      Checking Charge Pressure....1628
      Replacing Poppet Assembly....1628
      Removal And Installation....1629
      Replenishing/High Pressure Relief Valve....1630
      Disassembly....1631
      Assembly....1637
    DRIVE BELT....1644
      Removing Drive Belt Shield....1644
      Adjusting The Drive Belt Tension....1644
      Drive Belt Replacement....1645
      Tensioner Pulley Removal And Installation....1646
      Drive Belt Alignment....1646
    HYDROSTATIC CONTROLS....1648
      Steering Assembly Identification....1648
      Steering Assembly Removal And Installation....1649
      Steering Linkage Adjustment....1651
      Adjusting Forward Speed Control....1655
      Adjusting Reverse Speed Control....1655
  DRIVE SYSTEM....1656
    PARKING BRAKE....1658
      Handle Removal And Installation....1658
      Cable Removal And Installation....1658
      Cable Adjustment....1659
      Removing The Linkage Assembly....1660
      Brake Pin Lubrication....1661
    DRIVE COMPONENTS....1662
      Track Tension Checking (SN 523611010 & Above)....1662
      Adjusting The Tracks (SN 523611010 & Above)....1662
      Track Tension Checking (SN 523611009 & Below)....1663
      Adjusting The Tracks (SN 523611009 & Below)....1663
      Track Removal and Installation....1664
      Track Frame Removal and Installation....1665
      Rear Idler Removal and Installation....1666
      Parts Identification (Rear Track Idler)....1667
      Rear Idler Disassembly and Assembly....1668
      Front Idler Disassembly And Assembly....1669
      Track Tensioner Disassembly and Assembly....1670
      Track Roller Removal and Installation....1670
      Parts Identification (Track Roller)....1671
      Track Roller Disassembly and Assembly....1672
      Track Damage Identification....1673
  MAIN FRAME....1684
    BOB-TACH....1686
      Removal....1686
      Installation....1687
      Seal Removal And Installation....1688
      Lever And Wedge Removal....1688
    LIFT ARM....1690
      Removal And Installation....1690
    TAILGATE....1694
      Removal And Installation....1694
      Rear Door Panel Removal And Installation....1694
      Tailgate Striker Removal And Installation....1695
      Tailgate Striker Adjustment....1695
      Tailgate Bumper Adjustment....1696
    FUEL TANK....1698
      Removal And Installation....1698
    INSTRUMENT PANEL....1700
      Removal and Installation....1700
    GRAB BAR....1702
      Removal and Installation....1702
    HOOD....1704
      Removal and Installation....1704
      Disassembly And Assembly....1704
      Hood Latch Removal....1705
    REVERSE STOP PANEL....1706
      Description....1706
      Inspecting Function....1706
      Removal And Installation....1706
      Reverse Stop Mechanism Removal And Installation....1707
    BOTTOM ACCESS PANEL....1708
      Removal and Installation....1708
    RIDE-ON PLATFORM....1710
      Removal and Installation....1710
      Tire Removal and Installation....1710
      Caster Removal and Installation....1711
  ELECTRICAL SYSTEM & ANALYSIS....1712
    ELECTRICAL SCHEMATICS....1714
    ELECTRICAL SYSTEM INFORMATION....1718
      Electrical Troubleshooting Chart....1718
    BATTERY....1720
      Removal and Installation....1720
      Servicing....1721
      Using A Booster Battery (Jump Starting)....1721
    ALTERNATOR....1724
      Removal and Installation....1724
      Adjusting The Alternator Belt....1725
      Description....1725
      Tests....1725
      Alternator Output Test....1726
      Full Field Test....1726
      Alternator Regulator Test....1727
      Alternator Regulator Test Using Voltmeter....1727
    STARTER....1728
      Removal And Installation....1728
      Checking The Starter In The Loader....1729
      Parts Identification....1730
      Disassembly....1731
      Inspection And Repair....1736
      No Load Test....1740
      Assembly....1741
    INSTRUMENT PANEL....1748
      Component Removal And Installation....1748
    NEUTRAL START SENSOR....1750
      Description....1750
      Removal And Installation....1750
      Sensor Activation Adjustment....1751
      Sensor Activation Bolt Removal....1751
    ELECTRICAL ATTACHMENT CONTROL REFERENCE....1752
      Attachment Control Identification Chart....1752
  ENGINE SERVICE....1754
    ENGINE INFORMATION AND TESTING....1756
      Engine Troubleshooting Chart....1756
    ENGINE SPEED CONTROL....1758
      Removal And Installation....1758
      Disassembly And Assembly....1759
      Cable Removal and Installation....1759
    MUFFLER....1762
      Removal And Installation....1762
    AIR CLEANER....1764
      Housing Removal and Installation....1764
    RADIATOR....1766
      Removal And Installation....1766
    ENGINE COMPONENTS AND TESTING....1770
      Valve Clearance Adjustment....1770
      Fuel Injection Pump Check....1771
      Fuel Lift Pump Removal And Installation....1772
      Fuel Injection Pump Removal And Installation....1772
      Fuel Injector Nozzles Checking....1774
      Fuel Injector Nozzles Removal....1776
      Fuel Injector Nozzles Installation....1777
      Glow Plugs Checking....1777
      Engine Compression Test Procedure....1778
      Fuel Injection Pump Timing....1779
    ENGINE....1782
      Removal And Installation....1782
      Engine Mount Replacement....1786
    FLYWHEEL....1788
      Flywheel Removal And Installation....1788
      Flywheel Ring Gear Removal And Installation....1788
    RECONDITIONING THE ENGINE....1790
      Cylinder Head Removal And Installation....1790
      Cylinder Head Inspection....1791
      Cylinder Head Top Clearance....1792
      Rocker Arm And Shaft Checking....1792
      Valve Removal....1793
      Valve Spring Checking....1794
      Valve Guide Checking....1795
      Reconditioning The Valve And Valve Seat....1796
      Timing Gearcase Cover Removal And Installation....1797
      Idler Gear And Camshaft Removal And Installation....1799
      Servicing The Idler Gear And Shaft....1801
      Checking Timing Gear Backlash....1802
      Fuel Camshaft Removal And Installation....1803
      Governor....1803
      Crankshaft Gear Removal And Installation....1804
      Oil Pump Removal And Installation....1804
      Oil Pump Service....1804
      Checking Engine Oil Pressure....1805
      Relief Valve....1805
      Piston And Connecting Rod Removal And Installation....1806
      Piston And Connecting Rod Servicing....1808
      Connecting Rod Alignment....1809
      Crankshaft And Bearings Removal And Installation....1810
      Inspection Of Crankshaft And Bearings....1811
      Cylinder Bore Inspection....1814
      Thermostat Removal And Installation....1814
      Testing The Thermostat....1815
      Water Pump Removal And Installation....1815
      Water Pump Disassembly And Assembly....1816
      Energize To Stop Solenoid....1816
    ENGINE MOUNTING BRACKET....1818
      Engine Mounting Bracket Removal And Installation....1818
    HYDRAULIC GEAR PUMP MOUNTING BRACKET....1820
      Hydraulic Gear Pump Mounting Bracket Removal And Installation....1820
      Hydraulic Gear Pump Coupler Removal And Installation....1821
  SPECIFICATIONS....1822
    LOADER SPECIFICATIONS (MT52)....1824
      Loader Dimensions....1824
      Performance....1825
      Controls....1825
      Engine....1825
      Hydraulic System....1826
      Electrical....1826
      Drive System....1826
      Capacities....1827
      Tracks....1827
      Ground Pressure....1827
    ENGINE SPECIFICATIONS....1828
      Engine....1828
      Fuel Injector Nozzles....1828
      Fuel Injection Pump....1828
      Cylinder Head....1828
      Valves....1828
      Valve Springs....1828
      Rocker Arms....1829
      Camshaft....1829
      Cylinders....1829
      Piston Rings....1829
      Pistons....1830
      Crankshaft....1830
      Oil Pump....1830
      Timing Gear....1831
      Thermostat....1831
      Engine Bolt Torque....1832
    TORQUE SPECIFICATIONS FOR BOLTS....1834
      Torque For General SAE Bolts....1834
      Torque For General Metric Bolts....1835
      Torque For Kubota Metric Engine Bolts....1836
    HYDRAULIC CONNECTION SPECIFICATIONS....1838
      O-ring Face Seal Connection....1838
      Straight Thread O-ring Fitting....1839
      Tubelines And Hoses....1839
      Flare Fitting....1839
      O-ring Flare Fitting....1840
      Port Seal Fitting....1842
    HYDRAULIC FLUID SPECIFICATIONS....1844
      Specifications....1844
    CONVERSIONS....1846
      Decimal And Millimeter Equivalents....1846
  SMR....1848
    Revision No: MT52-1....1848
    Revision No: MT52-2....1850
    Revision No: MT52-3....1852
    Revision No: MT52-4....1854
6903371 (5-07) - MT55 Mini Loader Operation & Maintenance Manual....1856
  OPERATOR SAFETY WARNINGS....1858
  CONTENTS....1860
  FOREWORD....1862
    BOBCAT COMPANY IS ISO 9001:2000 CERTIFIED....1864
    REGULAR MAINTENANCE ITEMS....1864
    SERIAL NUMBER LOCATIONS....1865
      Mini Loader Serial Number....1865
      Engine Serial Number....1865
    DELIVERY REPORT....1865
    MINI LOADER IDENTIFICATION....1866
    FEATURES, ACCESSORIES AND ATTACHMENTS....1867
      Standard Items....1867
      Options and Accessories....1867
      Attachments....1867
      Buckets Available....1867
  SAFETY & TRAINING RESOURCES....1868
    SAFETY INSTRUCTIONS....1870
      Before Operation....1870
      Safe Operation Is The Operator?s Responsibility....1871
      Safe Operation Needs A Qualified Operator....1871
      Fire Prevention....1872
    MACHINE SIGNS (DECALS)....1873
    PUBLICATIONS AND TRAINING RESOURCES....1875
  OPERATING INSTRUCTIONS....1876
    CONTROLS IDENTIFICATION....1878
    CONTROLS OPERATION....1878
      Description....1878
    REVERSE STOP PANEL....1879
      Operation....1879
    LIFT ARM BY-PASS CONTROL....1879
      Operation....1879
    ENGINE SPEED CONTROL....1880
      Operation....1880
    PARKING BRAKE....1880
      Operation....1880
    DRIVING AND STEERING THE MINI LOADER....1881
      Operation....1881
    REVERSE TRAVEL SPEED CONTROL....1882
      Operation....1882
    STOPPING THE MINI LOADER....1883
      Using The Drive / Steering Control....1883
    HYDRAULIC CONTROLS....1884
      Description....1884
      FRONT Auxiliary Hydraulics (CONTINUOUS FLOW)....1885
      Quick Couplers....1885
      Relieve Hydraulic Pressure (Mini Loader and Attachment)....1886
    ATTACHMENT ELECTRICAL HARNESS (IF EQUIPPED)....1886
      Description....1886
    RIDE-ON PLATFORM (HINGED) (OPTION)....1887
      Procedure....1887
    DAILY INSPECTION....1888
      Daily Inspection and Maintenance:....1889
    PRE-STARTING PROCEDURE....1890
      Procedure....1890
    STARTING THE ENGINE....1891
      Key Switch....1891
      Cold Temperature Starting....1892
      Warming the Hydraulic / Hydrostatic System....1892
    STOPPING THE ENGINE AND LEAVING THE MINI LOADER....1892
      Procedure....1892
    ATTACHMENTS....1893
      Choosing The Correct Bucket....1893
      Pallet Forks....1893
      Installing The Bucket Or Attachment....1894
    OPERATING PROCEDURE....1895
      Inspect The Work Area....1895
      Driving On Rough Terrain And Over Curbs....1895
      Operating with A Full Bucket....1896
      Operating with An Empty Bucket....1896
      Filling the Bucket And Emptying The Bucket....1897
      Leveling The Ground Using Float....1898
      Digging And Filling A Hole....1898
    TOWING THE MINI LOADER....1899
      Procedure....1899
    LIFTING THE MINI LOADER....1900
      Four Point Lift....1900
    TRANSPORTING THE MINI LOADER ON A TRAILER....1901
      Loading And Unloading....1901
      Fastening....1901
  PREVENTIVE MAINTENANCE....1902
    MAINTENANCE SAFETY....1904
    SERVICE SCHEDULE....1906
      Chart....1906
    LIFT ARM BY-PASS CONTROL....1907
      Inspection....1907
    REVERSE STOP PANEL....1907
      Inspection....1907
    LIFT AND TILT FUNCTION LOCKOUTS....1908
      Inspection....1908
    NEUTRAL START INTERLOCKS....1909
      Inspecting Traction Drive Interlock....1909
      Inspecting Auxiliary Hydraulic Interlock....1909
    LIFT ARM SUPPORT DEVICE....1910
      Installing....1910
      Removing....1910
    ENGINE COVER....1911
      Operation....1911
      Striker Adjustment....1911
    REAR DOOR....1912
      Opening And Closing....1912
      Striker Adjustment....1912
      Bumper Adjustment....1912
    AIR CLEANER SERVICE....1913
      Replacing the Filter Elements (Early Models)....1913
      Replacing the Filter Elements (Later Models)....1914
    FUEL SYSTEM....1915
      Fuel Specifications....1915
      Filling the Fuel Tank....1915
      Fuel Filter....1916
      Removing Air From The Fuel System....1916
    ENGINE LUBRICATION SYSTEM....1917
      Checking And Adding Engine Oil....1917
      Oil Chart....1917
      Removing And Replacing Oil And Filter....1917
    ENGINE COOLING SYSTEM....1919
      Cleaning....1919
      Checking Level....1919
      Removing And Replacing the Coolant....1920
    ELECTRICAL SYSTEM....1921
      Description....1921
      Fuse And Relay Location / Identification....1921
      Battery Maintenance....1921
      Using A Booster Battery (Jump Starting)....1922
      Removing And Installing The Battery....1923
    HYDRAULIC SYSTEM....1924
      Checking And Adding Fluid....1924
      Hydraulic / Hydrostatic Fluid Chart....1924
      Removing And Replacing Hydraulic / Hydrostatic Filter....1925
      Removing And Replacing Hydraulic Fluid....1925
      Hydraulic Reservoir Breather....1925
    SPARK ARRESTOR MUFFLER....1926
      Cleaning Procedure....1926
    TRACK TENSION....1927
      Adjustment....1927
    ALTERNATOR BELT....1928
      Belt Adjustment....1928
      Belt Replacement....1928
    TRACK ROLLER AND IDLER LUBRICATION....1929
      Procedure....1929
    LUBRICATING THE MINI LOADER....1930
      Lubrication Locations....1930
      Parking Brake Lubrication....1931
    PIVOT PINS....1931
      Inspection And Maintenance....1931
    BOB-TACH....1932
      Inspection and Maintenance....1932
    MINI LOADER STORAGE AND RETURN TO SERVICE....1933
      Storage....1933
      Return to Service....1933
  MACHINE SIGN TRANSLATIONS....1934
    SERVICE SCHEDULE (7108578)....1936
    WARNING (6737039)....1939
    WARNING (6737040)....1942
    WARNING (6737041)....1943
    DANGER (6732142)....1944
    WARNING (6576048)....1945
    WARNING (6817225)....1945
    WARNING (6804233)....1945
    LIFT ARM SUPPORT DEVICE (6737045)....1946
  SPECIFICATIONS....1948
    (MT55) LOADER SPECIFICATIONS....1950
      Machine Dimensions....1950
      Performance....1951
      Controls....1951
      Engine....1951
      Hydraulic System....1952
      Electrical....1952
      Drive System....1952
      Capacities....1952
      Tracks....1953
      Ground Pressure....1953
  WARRANTY....1954
  ALPHABETICAL INDEX....1958
6903372 (10-12) - MT52, MT55 Service Manual....1960
  MAINTENANCE SAFETY....1962
  ALPHABETICAL INDEX....1964
  CONTENTS....1966
    FOREWORD....1968
    SAFETY INSTRUCTIONS....1970
      Fire Prevention....1972
    SERIAL NUMBER LOCATION....1974
      Loader Serial Number....1974
      Engine Serial Number....1974
    DELIVERY REPORT....1974
    BOBCAT LOADER IDENTIFICATION....1975
  SAFETY AND MAINTENANCE....1976
    LIFTING AND BLOCKING THE LOADER....1978
      Procedure....1978
      Four Point Lift....1979
    LIFT ARM SUPPORT DEVICE....1980
      Installing....1980
      Removing....1980
    TRANSPORTING THE BOBCAT LOADER....1982
      Procedure....1982
    TOWING THE LOADER....1984
      Procedure....1984
    SERVICE SCHEDULE....1986
      Chart....1986
    AIR CLEANER SERVICE....1988
      Replacing The Filter Elements (Early Models)....1988
      Replacing The Filter Elements (Later Models)....1989
    ENGINE COOLING SYSTEM....1990
      Checking The Coolant Level....1990
      Cleaning The Cooling System....1991
      Replacing The Coolant....1991
    FUEL SYSTEM....1994
      Fuel Specifications....1994
      Filling The Fuel Tank....1994
      Fuel Filter....1995
      Removing Air From The Fuel System....1995
    ENGINE LUBRICATION SYSTEM....1998
      Checking Engine Oil....1998
      Oil Chart....1998
      Replacing Oil And Filter....1998
    HYDRAULIC / HYDROSTATIC SYSTEM....2000
      Checking And Adding Fluid....2000
      Replacing Hydraulic Filter....2000
      Hydraulic Reservoir Breather....2000
      Replacing Hydraulic Fluid....2001
    BOB-TACH....2002
      Inspection And Maintenance....2002
    LUBRICATION OF THE BOBCAT MINI LOADER....2004
      Procedure....2004
      Parking Brake Lubrication....2005
      Pivot Pins....2006
    SPARK ARRESTOR MUFFLER....2008
      Servicing....2008
    CONTROLS....2010
      Reverse Stop Panel....2010
      Lift And Tilt Function Lockouts....2010
      Lift Arm By-Pass Controls....2010
      Neutral Start Interlocks....2011
    ELECTRICAL SYSTEM....2012
      Description....2012
      Fuse And Relay Location / Identification....2012
      Cleaning Battery Terminals....2013
      Using A Booster Battery (Jump Starting)....2014
      Removing And Installing The Battery....2015
  HYDRAULIC SYSTEM....2016
    HYDRAULIC/HYDROSTATIC SCHEMATICS....2018
    HYDRAULIC SYSTEM INFORMATION....2022
      Workgroup Troubleshooting Chart....2026
      Hydraulic Function Troubleshooting....2027
    CYLINDER (LIFT)....2028
      Checking The Lift Cylinder(s)....2028
      Removal And Installation....2029
      Parts Identification....2030
      Disassembly And Assembly....2031
    CYLINDER (TILT)....2034
      Checking The Tilt Cylinder....2034
      Removal And Installation....2035
      Rod End Pivot Pin Bushing And Seal Replacement....2036
      Parts Identification....2037
      Disassembly And Assembly....2038
    MAIN RELIEF VALVE....2040
      Checking....2040
      Removal And Installation....2042
    PORT RELIEF VALVES....2044
      Checking The Port Relief Valves (Lift)....2044
      Removal And Installation (Lift)....2046
      Checking The Port Relief Valves (Tilt)....2047
      Removal And Installation (Tilt)....2049
    HYDRAULIC CONTROL VALVE....2052
      Removal And Installation....2052
      Parts Identification....2055
      Identification Chart....2057
      Disassembly and Assembly....2058
    HYDRAULIC PUMP....2076
      Check The Output Of The Hydraulic Pump....2076
      Removal And Installation....2078
      Parts Identification....2079
      Disassembly And Assembly....2080
    HYDRAULIC FILTER....2082
      Housing Removal And Installation....2082
    HYDRAULIC FLUID RESERVOIR....2084
      Removal And Installation....2084
    HYDRAULIC OIL COOLER....2086
      Removal And Installation....2086
  HYDROSTATIC SYSTEM....2088
    HYDROSTATIC SYSTEM INFORMATION....2090
      Troubleshooting Chart....2090
      Replenishing Valve Function....2091
    DRIVE MOTOR....2092
      Removal And Installation....2092
      Parts Identification....2095
      Disassembly....2096
      Inspection....2102
      Assembly....2104
    HYDROSTATIC PUMP....2110
      Charge Pressure Sender Removal And Installation....2110
      Checking Charge Pressure....2110
      Replacing Poppet Assembly....2110
      Removal And Installation....2111
      Replenishing/High Pressure Relief Valve....2112
      Disassembly....2113
      Assembly....2119
    DRIVE BELT....2126
      Removing Drive Belt Shield....2126
      Adjusting The Drive Belt Tension....2126
      Drive Belt Replacement....2127
      Tensioner Pulley Removal And Installation....2128
      Drive Belt Alignment....2128
    HYDROSTATIC CONTROLS (S/N 528711001 - 528712699, S/N 528811001 - 528811149 AND S/N 538711001 - 538712499)....2130
      Steering Assembly Identification....2130
      Steering Assembly Removal And Installation....2131
      Steering Linkage Adjustment....2133
      Adjusting Forward Speed Control....2137
      Adjusting Reverse Speed Control....2138
    HYDROSTATIC CONTROLS (S/N 528712700 & ABOVE, S/N 528811150 & ABOVE AND S/N 538712500 & ABOVE)....2140
      Steering Assembly Identification....2140
      Steering Assembly Removal And Installation....2141
      Steering Linkage Adjustment....2143
      Adjusting Reverse Speed Control....2147
  DRIVE SYSTEM....2148
    PARKING BRAKE....2150
      Handle Removal And Installation....2150
      Cable Removal And Installation....2150
      Cable Adjustment....2151
      Removing The Linkage Assembly....2152
      Brake Pin Lubrication....2153
    DRIVE COMPONENTS....2154
      Track Tension Checking....2154
      Adjusting The Tracks....2154
      Track Removal and Installation....2155
      Track Frame Removal and Installation....2156
      Rear Idler Assembly Removal and Installation....2157
      Parts Identification (Rear Track Idler)....2158
      Rear Idler Disassembly and Assembly....2159
      Front Idler Disassembly And Assembly....2160
      Track Tensioner Disassembly and Assembly....2161
      Track Roller Removal and Installation....2161
      Parts Identification (Track Roller)....2162
      Track Roller Disassembly and Assembly....2163
      Track Damage Identification....2164
  MAIN FRAME....2174
    BOB-TACH....2176
      Removal....2176
      Installation....2177
      Seal Removal And Installation....2178
      Lever And Wedge Removal....2178
    LIFT ARM....2180
      Removal And Installation....2180
    TAILGATE....2182
      Removal And Installation....2182
      Rear Door Panel Removal And Installation....2182
      Tailgate Striker Removal And Installation....2183
      Tailgate Striker Adjustment....2183
      Tailgate Bumper Adjustment....2184
    FUEL TANK....2186
      Removal And Installation....2186
    INSTRUMENT PANEL....2188
      Removal and Installation....2188
    GRAB BAR....2190
      Removal and Installation....2190
    HOOD....2192
      Removal and Installation....2192
      Disassembly And Assembly....2192
      Hood Latch Removal....2193
    REVERSE STOP PANEL....2194
      Description....2194
      Inspecting Function....2194
      Removal And Installation....2194
      Reverse Stop Mechanism Removal And Installation....2195
    BOTTOM ACCESS PANEL....2196
      Removal and Installation....2196
    RIDE-ON PLATFORM....2198
      Removal and Installation....2198
      Tire Removal and Installation....2198
      Caster Removal and Installation....2199
  ELECTRICAL SYSTEM & ANALYSIS....2200
    ELECTRICAL SCHEMATICS....2202
    ELECTRICAL SYSTEM INFORMATION....2204
      Electrical Troubleshooting Chart....2204
    BATTERY....2206
      Removal and Installation....2206
      Servicing....2207
      Using A Booster Battery (Jump Starting)....2207
    ALTERNATOR....2210
      Removal and Installation....2210
      Adjusting The Alternator Belt....2211
      Description....2211
      Tests....2211
      Alternator Output Test....2212
      Full Field Test....2212
      Alternator Regulator Test....2213
      Alternator Regulator Test Using Voltmeter....2213
    STARTER....2214
      Removal And Installation....2214
      Checking The Starter In The Loader....2215
      Parts Identification....2216
      Disassembly....2217
      Inspection And Repair....2222
      No Load Test....2226
      Assembly....2227
    INSTRUMENT PANEL....2234
      Component Removal And Installation....2234
    NEUTRAL START SENSOR (S/N 528711001 - 528712429, S/N 528811001 - 528811121 AND S/N 538711001 - 538712295)....2236
      Description....2236
      Removal And Installation....2236
      Sensor Activation Adjustment....2237
      Sensor Activation Bolt Removal....2237
    NEUTRAL START SENSOR (S/N 528712430 & aBOVE, S/N 528811122 & ABOVE AND S/N 538712296 & ABOVE)....2238
      Description....2238
      Removal And Installation....2238
      Sensor Activation Adjustment....2239
      Sensor Activation Bolt Removal....2240
    ELECTRICAL ATTACHMENT CONTROL REFERENCE....2242
      Attachment Control Identification Chart....2242
  ENGINE SERVICE....2244
    ENGINE INFORMATION AND TESTING....2246
      Engine Troubleshooting Chart....2246
    ENGINE SPEED CONTROL....2248
      Removal And Installation....2248
      Disassembly And Assembly....2249
      Cable Removal and Installation....2249
    MUFFLER....2252
      Removal And Installation....2252
    AIR CLEANER....2254
      Housing Removal and Installation....2254
    RADIATOR....2256
      Removal And Installation....2256
    ENGINE COMPONENTS AND TESTING....2260
      Valve Clearance Adjustment....2260
      Fuel Injection Pump Check....2261
      Fuel Lift Pump Removal And Installation....2262
      Fuel Injection Pump Removal And Installation....2262
      Fuel Injector Nozzles Checking....2264
      Fuel Injector Nozzles Removal....2266
      Fuel Injector Nozzles Installation....2267
      Glow Plugs Checking....2267
      Engine Compression Test Procedure....2267
      Fuel Injection Pump Timing....2268
    ENGINE (S/N 528711001 - 528712699, S/N 528811001 - 528811149 AND S/N 538711001 - 538712499)....2270
      Removal And Installation....2270
      Engine Mount Replacement....2274
    ENGINE (S/N 528712700 & ABOVE, S/N 528811150 & above AND S/N 538712500 & ABOVE)....2276
      Removal And Installation....2276
      Engine Mount Replacement....2280
    FLYWHEEL....2282
      Flywheel Removal And Installation....2282
      Flywheel Ring Gear Removal And Installation....2282
    RECONDITIONING THE ENGINE....2284
      Cylinder Head Removal And Installation....2284
      Cylinder Head Inspection....2285
      Cylinder Head Top Clearance....2286
      Rocker Arm And Shaft Checking....2286
      Valve Removal....2287
      Valve Spring Checking....2288
      Valve Guide Checking....2289
      Reconditioning The Valve And Valve Seat....2290
      Timing Gearcase Cover Removal And Installation....2291
      Idler Gear And Camshaft Removal And Installation....2293
      Servicing The Idler Gear And Shaft....2295
      Checking Timing Gear Backlash....2296
      Fuel Camshaft Removal And Installation....2297
      Governor....2297
      Crankshaft Gear Removal And Installation....2298
      Oil Pump Removal And Installation....2298
      Oil Pump Service....2298
      Checking Engine Oil Pressure....2299
      Relief Valve....2299
      Piston And Connecting Rod Removal And Installation....2300
      Piston And Connecting Rod Servicing....2302
      Connecting Rod Alignment....2304
      Crankshaft And Bearings Removal And Installation....2304
      Inspection Of Crankshaft And Bearings....2307
      Cylinder Bore Inspection....2309
      Thermostat Removal And Installation....2309
      Testing The Thermostat....2310
      Water Pump Removal And Installation....2310
      Water Pump Disassembly And Assembly....2311
      Energize To Stop Solenoid....2311
    ENGINE MOUNTING BRACKET....2312
      Engine Mounting Bracket Removal And Installation....2312
    HYDRAULIC GEAR PUMP MOUNTING BRACKET....2314
      Hydraulic Gear Pump Mounting Bracket Removal And Installation....2314
      Hydraulic Gear Pump Coupler Removal And Installation....2315
  SPECIFICATIONS....2316
    LOADER SPECIFICATIONS....2318
      Loader Dimensions (MT52)....2318
      Loader Dimensions (MT55)....2319
      Performance....2320
      Controls....2320
      Engine....2320
      Hydraulic System....2321
      Electrical....2321
      Drive System....2321
      Capacities....2322
      Tracks....2322
      Ground Pressure....2322
    ENGINE SPECIFICATIONS (KUBOTA D902-E2B)....2324
      Engine....2324
      Fuel Injector Nozzles....2324
      Fuel Injection Pump....2324
      Cylinder Head....2324
      Valves....2324
      Valve Springs....2324
      Rocker Arms....2325
      Camshaft....2325
      Cylinders....2325
      Piston Rings....2325
      Pistons....2326
      Connecting Rods....2326
      Crankshaft....2326
      Oil Pump....2326
      Timing Gear....2327
      Thermostat....2327
      Engine Bolt Torque....2328
    ENGINE SPECIFICATIONS (KUBOTA D722-E2B)....2330
      Engine....2330
      Fuel Injector Nozzles....2330
      Fuel Injection Pump....2330
      Cylinder Head....2330
      Valves....2330
      Valve Springs....2330
      Rocker Arms....2331
      Camshaft....2331
      Cylinders....2331
      Piston Rings....2331
      Pistons....2332
      Connecting Rods....2332
      Crankshaft....2332
      Oil Pump....2332
      Timing Gear....2333
      Thermostat....2333
      Engine Bolt Torque....2334
    TORQUE SPECIFICATIONS FOR BOLTS....2336
      Torque For General SAE Bolts....2336
      Torque For General Metric Bolts....2337
      Torque For Kubota Metric Engine Bolts....2338
    HYDRAULIC CONNECTION SPECIFICATIONS....2340
      O-ring Face Seal Connection....2340
      Straight Thread O-ring Fitting....2341
      Tubelines And Hoses....2341
      Flare Fitting....2341
      O-ring Flare Fitting....2342
      Port Seal Fitting....2344
    HYDRAULIC FLUID SPECIFICATIONS....2346
      Specifications....2346
    CONVERSIONS....2348
      Decimal And Millimeter Equivalents....2348
      U.S. To Metric Conversion....2348
  SMR....2350
    MT52, MT55-1....2350
    MT52, MT55-2....2352
    MT52, MT55-3....2354
    MT52, MT55-4....2356
    MT52, MT55-5....2358
    MT52, MT55-6....2360
6903372 (5-07) - MT52, MT55 Service Manual....2362
  MAINTENANCE SAFETY....2364
  ALPHABETICAL INDEX....2366
  CONTENTS....2368
    FOREWORD....2370
    SAFETY INSTRUCTIONS....2372
      Fire Prevention....2374
    SERIAL NUMBER LOCATION....2376
      Loader Serial Number....2376
      Engine Serial Number....2376
    DELIVERY REPORT....2376
    BOBCAT LOADER IDENTIFICATION....2377
  SAFETY AND MAINTENANCE....2378
    LIFTING AND BLOCKING THE LOADER....2380
      Procedure....2380
      Four Point Lift....2381
    LIFT ARM SUPPORT DEVICE....2382
      Installing....2382
      Removing....2382
    TRANSPORTING THE BOBCAT LOADER....2384
      Procedure....2384
    TOWING THE LOADER....2386
      Procedure....2386
    SERVICE SCHEDULE....2388
      Chart....2388
    AIR CLEANER SERVICE....2390
      Replacing The Filter Elements (Early Models)....2390
      Replacing The Filter Elements (Later Models)....2391
    ENGINE COOLING SYSTEM....2392
      Checking The Coolant Level....2392
      Cleaning The Cooling System....2393
      Replacing The Coolant....2393
    FUEL SYSTEM....2396
      Fuel Specifications....2396
      Filling The Fuel Tank....2396
      Fuel Filter....2397
      Removing Air From The Fuel System....2397
    ENGINE LUBRICATION SYSTEM....2400
      Checking Engine Oil....2400
      Oil Chart....2400
      Replacing Oil And Filter....2400
    HYDRAULIC / HYDROSTATIC SYSTEM....2402
      Checking And Adding Fluid....2402
      Replacing Hydraulic Filter....2402
      Hydraulic Reservoir Breather....2402
      Replacing Hydraulic Fluid....2403
    BOB-TACH....2404
      Inspection And Maintenance....2404
    LUBRICATION OF THE BOBCAT MINI LOADER....2406
      Procedure....2406
      Parking Brake Lubrication....2407
      Pivot Pins....2408
    SPARK ARRESTOR MUFFLER....2410
      Servicing....2410
    CONTROLS....2412
      Reverse Stop Panel....2412
      Lift And Tilt Function Lockouts....2412
      Lift Arm By-Pass Controls....2412
      Neutral Start Interlocks....2413
    ELECTRICAL SYSTEM....2414
      Description....2414
      Fuse And Relay Location / Identification....2414
      Cleaning Battery Terminals....2415
      Using A Booster Battery (Jump Starting)....2416
      Removing And Installing The Battery....2417
  HYDRAULIC SYSTEM....2418
    HYDRAULIC/HYDROSTATIC SCHEMATICS....2420
    HYDRAULIC SYSTEM INFORMATION....2422
      Workgroup Troubleshooting Chart....2426
      Hydraulic Function Troubleshooting....2427
    CYLINDER (LIFT)....2428
      Checking The Lift Cylinder(s)....2428
      Removal And Installation....2429
      Parts Identification....2430
      Disassembly And Assembly....2431
    CYLINDER (TILT)....2434
      Checking The Tilt Cylinder....2434
      Removal And Installation....2435
      Rod End Pivot Pin Bushing And Seal Replacement....2436
      Parts Identification....2437
      Disassembly And Assembly....2438
    MAIN RELIEF VALVE....2440
      Checking....2440
      Removal And Installation....2442
    PORT RELIEF VALVES....2444
      Checking The Port Relief Valves (Lift)....2444
      Removal And Installation (Lift)....2446
      Checking The Port Relief Valves (Tilt)....2447
      Removal And Installation (Tilt)....2449
    HYDRAULIC CONTROL VALVE....2452
      Removal And Installation....2452
      Parts Identification....2455
      Identification Chart....2457
      Disassembly and Assembly....2458
    HYDRAULIC PUMP....2476
      Check The Output Of The Hydraulic Pump....2476
      Removal And Installation....2478
      Parts Identification....2479
      Disassembly And Assembly....2480
    HYDRAULIC FILTER....2482
      Housing Removal And Installation....2482
    HYDRAULIC FLUID RESERVOIR....2484
      Removal And Installation....2484
    HYDRAULIC OIL COOLER....2486
      Removal And Installation....2486
  HYDROSTATIC SYSTEM....2488
    HYDROSTATIC SYSTEM INFORMATION....2490
      Troubleshooting Chart....2490
      Replenishing Valve Function....2491
    DRIVE MOTOR....2492
      Removal And Installation....2492
      Parts Identification....2495
      Disassembly....2496
      Inspection....2502
      Assembly....2504
    HYDROSTATIC PUMP....2510
      Charge Pressure Sender Removal And Installation....2510
      Checking Charge Pressure....2510
      Replacing Poppet Assembly....2510
      Removal And Installation....2511
      Replenishing/High Pressure Relief Valve....2512
      Disassembly....2513
      Assembly....2519
    DRIVE BELT....2526
      Removing Drive Belt Shield....2526
      Adjusting The Drive Belt Tension....2526
      Drive Belt Replacement....2527
      Tensioner Pulley Removal And Installation....2528
      Drive Belt Alignment....2528
    HYDROSTATIC CONTROLS (S/N 528711001 - 528712699, S/N 528811001 - 528811149 AND S/N 538711001 - 538712499)....2530
      Steering Assembly Identification....2530
      Steering Assembly Removal And Installation....2531
      Steering Linkage Adjustment....2533
      Adjusting Forward Speed Control....2537
      Adjusting Reverse Speed Control....2538
    HYDROSTATIC CONTROLS (S/N 528712700 & ABOVE, S/N 528811150 & ABOVE AND S/N 538712500 & ABOVE)....2540
      Steering Assembly Identification....2540
      Steering Assembly Removal And Installation....2541
      Steering Linkage Adjustment....2543
      Adjusting Reverse Speed Control....2547
  DRIVE SYSTEM....2548
    PARKING BRAKE....2550
      Handle Removal And Installation....2550
      Cable Removal And Installation....2550
      Cable Adjustment....2551
      Removing The Linkage Assembly....2552
      Brake Pin Lubrication....2553
    DRIVE COMPONENTS....2554
      Track Tension Checking....2554
      Adjusting The Tracks....2554
      Track Removal and Installation....2555
      Track Frame Removal and Installation....2556
      Rear Idler Assembly Removal and Installation....2557
      Parts Identification (Rear Track Idler)....2558
      Rear Idler Disassembly and Assembly....2559
      Front Idler Disassembly And Assembly....2560
      Track Tensioner Disassembly and Assembly....2561
      Track Roller Removal and Installation....2561
      Parts Identification (Track Roller)....2562
      Track Roller Disassembly and Assembly....2563
      Track Damage Identification....2564
  MAIN FRAME....2574
    BOB-TACH....2576
      Removal....2576
      Installation....2577
      Seal Removal And Installation....2578
      Lever And Wedge Removal....2578
    LIFT ARM....2580
      Removal And Installation....2580
    TAILGATE....2582
      Removal And Installation....2582
      Rear Door Panel Removal And Installation....2582
      Tailgate Striker Removal And Installation....2583
      Tailgate Striker Adjustment....2583
      Tailgate Bumper Adjustment....2584
    FUEL TANK....2586
      Removal And Installation....2586
    INSTRUMENT PANEL....2588
      Removal and Installation....2588
    GRAB BAR....2590
      Removal and Installation....2590
    HOOD....2592
      Removal and Installation....2592
      Disassembly And Assembly....2592
      Hood Latch Removal....2593
    REVERSE STOP PANEL....2594
      Description....2594
      Inspecting Function....2594
      Removal And Installation....2594
      Reverse Stop Mechanism Removal And Installation....2595
    BOTTOM ACCESS PANEL....2596
      Removal and Installation....2596
    RIDE-ON PLATFORM....2598
      Removal and Installation....2598
      Tire Removal and Installation....2598
      Caster Removal and Installation....2599
  ELECTRICAL SYSTEM & ANALYSIS....2600
    ELECTRICAL SCHEMATICS....2602
    ELECTRICAL SYSTEM INFORMATION....2603
      Electrical Troubleshooting Chart....2603
    BATTERY....2605
      Removal and Installation....2605
      Servicing....2606
      Using A Booster Battery (Jump Starting)....2606
    ALTERNATOR....2609
      Removal and Installation....2609
      Adjusting The Alternator Belt....2610
      Description....2610
      Tests....2610
      Alternator Output Test....2611
      Full Field Test....2611
      Alternator Regulator Test....2612
      Alternator Regulator Test Using Voltmeter....2612
    STARTER....2613
      Removal And Installation....2613
      Checking The Starter In The Loader....2614
      Parts Identification....2615
      Disassembly....2616
      Inspection And Repair....2621
      No Load Test....2625
      Assembly....2626
    INSTRUMENT PANEL....2633
      Component Removal And Installation....2633
    NEUTRAL START SENSOR (S/N 528711001 - 528712429, S/N 528811001 - 528811121 AND S/N 538711001 - 538712295)....2635
      Description....2635
      Removal And Installation....2635
      Sensor Activation Adjustment....2636
      Sensor Activation Bolt Removal....2636
    NEUTRAL START SENSOR (S/N 528712430 & aBOVE, S/N 528811122 & ABOVE AND S/N 538712296 & ABOVE)....2637
      Description....2637
      Removal And Installation....2637
      Sensor Activation Adjustment....2638
      Sensor Activation Bolt Removal....2639
    ELECTRICAL ATTACHMENT CONTROL REFERENCE....2641
      Attachment Control Identification Chart....2641
  ENGINE SERVICE....2643
    ENGINE INFORMATION AND TESTING....2645
      Engine Troubleshooting Chart....2645
    ENGINE SPEED CONTROL....2647
      Removal And Installation....2647
      Disassembly And Assembly....2648
      Cable Removal and Installation....2648
    MUFFLER....2651
      Removal And Installation....2651
    AIR CLEANER....2653
      Housing Removal and Installation....2653
    RADIATOR....2655
      Removal And Installation....2655
    ENGINE COMPONENTS AND TESTING....2659
      Valve Clearance Adjustment....2659
      Fuel Injection Pump Check....2660
      Fuel Lift Pump Removal And Installation....2661
      Fuel Injection Pump Removal And Installation....2661
      Fuel Injector Nozzles Checking....2663
      Fuel Injector Nozzles Removal....2665
      Fuel Injector Nozzles Installation....2666
      Glow Plugs Checking....2666
      Engine Compression Test Procedure....2666
      Fuel Injection Pump Timing....2667
    ENGINE (S/N 528711001 - 528712699, S/N 528811001 - 528811149 AND S/N 538711001 - 538712499)....2669
      Removal And Installation....2669
      Engine Mount Replacement....2673
    ENGINE (S/N 528712700 & ABOVE, S/N 528811150 & above AND S/N 538712500 & ABOVE)....2675
      Removal And Installation....2675
      Engine Mount Replacement....2679
    FLYWHEEL....2681
      Flywheel Removal And Installation....2681
      Flywheel Ring Gear Removal And Installation....2681
    RECONDITIONING THE ENGINE....2683
      Cylinder Head Removal And Installation....2683
      Cylinder Head Inspection....2684
      Cylinder Head Top Clearance....2685
      Rocker Arm And Shaft Checking....2685
      Valve Removal....2686
      Valve Spring Checking....2687
      Valve Guide Checking....2688
      Reconditioning The Valve And Valve Seat....2689
      Timing Gearcase Cover Removal And Installation....2690
      Idler Gear And Camshaft Removal And Installation....2692
      Servicing The Idler Gear And Shaft....2694
      Checking Timing Gear Backlash....2695
      Fuel Camshaft Removal And Installation....2696
      Governor....2696
      Crankshaft Gear Removal And Installation....2697
      Oil Pump Removal And Installation....2697
      Oil Pump Service....2697
      Checking Engine Oil Pressure....2698
      Relief Valve....2698
      Piston And Connecting Rod Removal And Installation....2699
      Piston And Connecting Rod Servicing....2701
      Connecting Rod Alignment....2703
      Crankshaft And Bearings Removal And Installation....2703
      Inspection Of Crankshaft And Bearings....2706
      Cylinder Bore Inspection....2708
      Thermostat Removal And Installation....2708
      Testing The Thermostat....2709
      Water Pump Removal And Installation....2709
      Water Pump Disassembly And Assembly....2710
      Energize To Stop Solenoid....2710
    ENGINE MOUNTING BRACKET....2711
      Engine Mounting Bracket Removal And Installation....2711
    HYDRAULIC GEAR PUMP MOUNTING BRACKET....2713
      Hydraulic Gear Pump Mounting Bracket Removal And Installation....2713
      Hydraulic Gear Pump Coupler Removal And Installation....2714
  SPECIFICATIONS....2715
    LOADER SPECIFICATIONS....2717
      Loader Dimensions (MT52)....2717
      Loader Dimensions (MT55)....2718
      Performance....2719
      Controls....2719
      Engine....2719
      Hydraulic System....2720
      Electrical....2720
      Drive System....2720
      Capacities....2721
      Tracks....2721
      Ground Pressure....2721
    ENGINE SPECIFICATIONS (KUBOTA D902-E2B)....2723
      Engine....2723
      Fuel Injector Nozzles....2723
      Fuel Injection Pump....2723
      Cylinder Head....2723
      Valves....2723
      Valve Springs....2723
      Rocker Arms....2724
      Camshaft....2724
      Cylinders....2724
      Piston Rings....2724
      Pistons....2725
      Connecting Rods....2725
      Crankshaft....2725
      Oil Pump....2725
      Timing Gear....2726
      Thermostat....2726
      Engine Bolt Torque....2727
    ENGINE SPECIFICATIONS (KUBOTA D722-E2B)....2729
      Engine....2729
      Fuel Injector Nozzles....2729
      Fuel Injection Pump....2729
      Cylinder Head....2729
      Valves....2729
      Valve Springs....2729
      Rocker Arms....2730
      Camshaft....2730
      Cylinders....2730
      Piston Rings....2730
      Pistons....2731
      Connecting Rods....2731
      Crankshaft....2731
      Oil Pump....2731
      Timing Gear....2732
      Thermostat....2732
      Engine Bolt Torque....2733
    TORQUE SPECIFICATIONS FOR BOLTS....2735
      Torque For General SAE Bolts....2735
      Torque For General Metric Bolts....2736
      Torque For Kubota Metric Engine Bolts....2737
    HYDRAULIC CONNECTION SPECIFICATIONS....2739
      O-ring Face Seal Connection....2739
      Straight Thread O-ring Fitting....2740
      Tubelines And Hoses....2740
      Flare Fitting....2740
      O-ring Flare Fitting....2741
      Port Seal Fitting....2743
    HYDRAULIC FLUID SPECIFICATIONS....2745
      Specifications....2745
    CONVERSIONS....2747
      Decimal And Millimeter Equivalents....2747
      U.S. To Metric Conversion....2747
  SMR....2749
    MT52, MT55-1....2749
    MT52, MT55-2....2751
    MT52, MT55-3....2753
    MT52, MT55-4....2755
    MT52, MT55-5....2757
6903375 (5-07) - MT52 Mini Loader Operation & Maintenance Manual....2759
  OPERATOR SAFETY WARNINGS....2761
  CONTENTS....2763
  FOREWORD....2765
    BOBCAT COMPANY IS ISO 9001:2000 CERTIFIED....2767
    REGULAR MAINTENANCE ITEMS....2767
    SERIAL NUMBER LOCATIONS....2768
      Mini Loader Serial Number....2768
      Engine Serial Number....2768
    DELIVERY REPORT....2768
    MINI LOADER IDENTIFICATION....2769
    FEATURES, ACCESSORIES AND ATTACHMENTS....2770
      Standard Items....2770
      Options and Accessories....2770
      Attachments....2770
      Buckets Available....2770
  SAFETY & TRAINING RESOURCES....2771
    SAFETY INSTRUCTIONS....2773
      Before Operation....2773
      Safe Operation Is The Operator?s Responsibility....2774
      Safe Operation Needs A Qualified Operator....2774
      Fire Prevention....2775
    MACHINE SIGNS (DECALS)....2776
    PUBLICATIONS AND TRAINING RESOURCES....2778
  OPERATING INSTRUCTIONS....2779
    CONTROLS IDENTIFICATION....2781
    CONTROLS OPERATION....2781
      Description....2781
    REVERSE STOP PANEL....2782
      Operation....2782
    LIFT ARM BY-PASS CONTROL....2782
      Operation....2782
    ENGINE SPEED CONTROL....2783
      Operation....2783
    PARKING BRAKE....2783
      Operation....2783
    DRIVING AND STEERING THE MINI LOADER....2784
      Operation....2784
    REVERSE TRAVEL SPEED CONTROL....2785
      Operation....2785
    STOPPING THE MINI LOADER....2786
      Using The Drive / Steering Control....2786
    HYDRAULIC CONTROLS....2787
      Description....2787
      FRONT Auxiliary Hydraulics (CONTINUOUS FLOW)....2788
      Quick Couplers....2788
      Relieve Hydraulic Pressure (Mini Loader and Attachment)....2789
    ATTACHMENT ELECTRICAL HARNESS (IF EQUIPPED)....2789
      Description....2789
    RIDE-ON PLATFORM (HINGED) (OPTION)....2790
      Procedure....2790
    DAILY INSPECTION....2791
      Daily Inspection and Maintenance:....2792
    PRE-STARTING PROCEDURE....2793
      Procedure....2793
    STARTING THE ENGINE....2794
      Key Switch....2794
      Cold Temperature Starting....2795
      Warming the Hydraulic / Hydrostatic System....2795
    STOPPING THE ENGINE AND LEAVING THE MINI LOADER....2795
      Procedure....2795
    ATTACHMENTS....2796
      Choosing The Correct Bucket....2796
      Pallet Forks....2796
      Installing The Bucket Or Attachment....2797
    OPERATING PROCEDURE....2798
      Inspect The Work Area....2798
      Driving On Rough Terrain And Over Curbs....2798
      Operating with A Full Bucket....2799
      Operating with An Empty Bucket....2799
      Filling the Bucket And Emptying The Bucket....2800
      Leveling The Ground Using Float....2801
      Digging And Filling A Hole....2801
    TOWING THE MINI LOADER....2802
      Procedure....2802
    LIFTING THE MINI LOADER....2803
      Four Point Lift....2803
    TRANSPORTING THE BOBCAT LOADER....2804
      Loading And Unloading....2804
      Fastening....2804
  PREVENTIVE MAINTENANCE....2805
    MAINTENANCE SAFETY....2807
    SERVICE SCHEDULE....2809
      Chart....2809
    LIFT ARM BY-PASS CONTROL....2810
      Inspection....2810
    REVERSE STOP PANEL....2810
      Inspection....2810
    LIFT AND TILT FUNCTION LOCKOUTS....2811
      Inspection....2811
    NEUTRAL START INTERLOCKS....2812
      Inspecting Traction Drive Interlock....2812
      Inspecting Auxiliary Hydraulic Interlock....2812
    LIFT ARM SUPPORT DEVICE....2813
      Installing....2813
      Removing....2813
    ENGINE COVER....2814
      Operation....2814
      Striker Adjustment....2814
    REAR DOOR....2815
      Opening And Closing....2815
      Striker Adjustment....2815
      Bumper Adjustment....2815
    AIR CLEANER SERVICE....2816
      Replacing the Filter Elements (Early Models)....2816
      Replacing the Filter Elements (Later Models)....2817
    FUEL SYSTEM....2818
      Fuel Specifications....2818
      Filling the Fuel Tank....2818
      Fuel Filter....2819
      Removing Air From The Fuel System....2819
    ENGINE LUBRICATION SYSTEM....2820
      Checking And Adding Engine Oil....2820
      Oil Chart....2820
      Removing And Replacing Oil And Filter....2820
    ENGINE COOLING SYSTEM....2822
      Cleaning....2822
      Checking Level....2822
      Removing And Replacing the Coolant....2823
    ELECTRICAL SYSTEM....2824
      Description....2824
      Fuse And Relay Location / Identification....2824
      Battery Maintenance....2824
      Using A Booster Battery (Jump Starting)....2825
      Removing And Installing The Battery....2826
    HYDRAULIC SYSTEM....2827
      Checking And Adding Fluid....2827
      Hydraulic / Hydrostatic Fluid Chart....2827
      Removing And Replacing Hydraulic / Hydrostatic Filter....2828
      Removing And Replacing Hydraulic Fluid....2828
      Hydraulic Reservoir Breather....2828
    SPARK ARRESTOR MUFFLER....2829
      Cleaning Procedure....2829
    TRACK TENSION....2830
      Adjustment....2830
    ALTERNATOR BELT....2831
      Belt Adjustment....2831
      Belt Replacement....2831
    TRACK ROLLER AND IDLER LUBRICATION....2832
      Procedure....2832
    LUBRICATING THE MINI LOADER....2833
      Lubrication Locations....2833
      Parking Brake Lubrication....2834
    PIVOT PINS....2834
      Inspection And Maintenance....2834
    BOB-TACH....2835
      Inspection and Maintenance....2835
    MINI LOADER STORAGE AND RETURN TO SERVICE....2836
      Storage....2836
      Return to Service....2836
  MACHINE SIGN TRANSLATIONS....2837
    SERVICE SCHEDULE (7108578)....2839
    WARNING (6737039)....2842
    WARNING (6737040)....2845
    WARNING (6737041)....2846
    DANGER (6732142)....2847
    WARNING (6576048)....2848
    WARNING (6817225)....2848
    WARNING (6804233)....2848
    LIFT ARM SUPPORT DEVICE (6737045)....2849
  SPECIFICATIONS....2851
    (MT52) LOADER SPECIFICATIONS....2853
      Machine Dimensions....2853
      Performance....2854
      Controls....2854
      Engine....2854
      Hydraulic System....2855
      Electrical....2855
      Drive System....2855
      Capacities....2855
      Tracks....2856
      Ground Pressure....2856
  WARRANTY....2857
  ALPHABETICAL INDEX....2861
6986856 (8-10) - MT52 Mini Loader Operation & Maintenance Manual....2863
  OPERATOR SAFETY WARNINGS....2865
  CONTENTS....2867
  FOREWORD....2869
    BOBCAT COMPANY IS IS0 9001 CERTIFIED....2871
    REGULAR MAINTENANCE ITEMS....2871
    SERIAL NUMBER LOCATIONS....2872
      Mini Loader Serial Number....2872
      Engine Serial Number....2872
    DELIVERY REPORT....2872
    MINI LOADER IDENTIFICATION....2873
    FEATURES, ACCESSORIES AND ATTACHMENTS....2874
      Standard Items....2874
      Options And Accessories....2874
      Attachments....2874
      Buckets Available....2874
  SAFETY & TRAINING RESOURCES....2875
    SAFETY INSTRUCTIONS....2877
      Before Operation....2877
      Safe Operation Is The Operator?s Responsibility....2878
      Safe Operation Needs A Qualified Operator....2878
      Avoid Silica Dust....2879
    FIRE PREVENTION....2879
      Maintenance....2879
      Operation....2879
      Electrical....2879
      Hydraulic System....2880
      Fueling....2880
      Starting....2880
      Spark Arrestor Exhaust System....2880
      Welding And Grinding....2880
      Fire Extinguishers....2880
    MACHINE SIGNS (DECALS)....2881
    PUBLICATIONS AND TRAINING RESOURCES....2883
  OPERATING INSTRUCTIONS....2885
    CONTROLS IDENTIFICATION....2887
    CONTROLS OPERATION....2887
      Description....2887
    REVERSE STOP PANEL....2888
      Operation....2888
    LIFT ARM BY-PASS CONTROL....2888
      Operation....2888
    ENGINE SPEED CONTROL....2889
      Operation....2889
    PARKING BRAKE....2889
      Operation....2889
    DRIVING AND STEERING THE MINI LOADER....2890
      Operation....2890
    DRIVE / STEERING CONTROL TILT ADJUSTMENT....2891
      Operation....2891
    REVERSE TRAVEL SPEED CONTROL LEVER....2891
      Operation....2891
    STOPPING THE MINI LOADER....2892
      Using The Drive / Steering Control....2892
    HYDRAULIC CONTROLS....2893
      Description....2893
      Lift Arm Operation....2893
      Lift Arm Float Position....2893
      Tilt Operation....2893
      FRONT Auxiliary Hydraulics (CONTINUOUS FLOW)....2894
      Quick Couplers....2895
      Relieve Hydraulic Pressure (Mini Loader And Attachment)....2895
    ATTACHMENT CONTROL DEVICE (ACD) (IF EQUIPPED)....2896
      Description....2896
    RIDE-ON PLATFORM (HINGED) (OPTION)....2897
      Procedure....2897
    DAILY INSPECTION....2898
      Daily Inspection And Maintenance:....2899
    PRE-STARTING PROCEDURE....2900
      Procedure....2900
    STARTING THE ENGINE....2901
      Key Switch....2901
      Cold Temperature Starting....2902
      Warming The Hydraulic / Hydrostatic System....2902
    STOPPING THE ENGINE AND LEAVING THE MINI LOADER....2903
      Procedure....2903
    ATTACHMENTS....2904
      Choosing The Correct Bucket....2904
      Pallet Forks....2904
      Installing And Removing The Attachment....2905
    OPERATING PROCEDURE....2907
      Inspect The Work Area....2907
      Basic Operating Instructions....2907
      Driving On Rough Terrain And Over Curbs....2908
      Driving With An Auger Attachment Installed....2909
      Operating With A Full Bucket....2910
      Operating With An Empty Bucket....2910
      Filling The Bucket And Emptying The Bucket....2911
      Leveling The Ground Using Float....2912
      Digging And Filling A Hole....2912
    TOWING THE MINI LOADER....2913
      Procedure....2913
    LIFTING THE MINI LOADER....2914
      Four Point Lift....2914
    TRANSPORTING THE BOBCAT MINI LOADER....2915
      Loading And Unloading....2915
      Fastening....2915
  PREVENTIVE MAINTENANCE....2917
    MAINTENANCE SAFETY....2921
    SERVICE SCHEDULE....2923
      Chart....2923
    LIFT ARM BY-PASS CONTROL....2924
      Inspection....2924
    REVERSE STOP PANEL....2924
      Inspection....2924
    LIFT AND TILT FUNCTION LOCKOUTS....2925
      Inspection....2925
    NEUTRAL START INTERLOCKS....2926
      Inspecting Traction Drive Interlock....2926
      Inspecting The Continuous Flow Shutoff Lever....2926
      Inspecting Auxiliary Hydraulic Interlock....2926
    AUXILIARY HYDRAULIC CONTROL SYSTEM....2927
      Inspecting The Continuous Flow Shutoff Lever....2927
      Inspecting The Auxiliary Hydraulic Mode Switch (If Equipped)....2927
    LIFT ARM SUPPORT DEVICE....2928
      Installing....2928
      Removing....2928
    HOOD....2929
      Operation....2929
      Striker (Adjusting)....2929
    REAR DOOR....2930
      Opening And Closing....2930
      Striker (Adjusting)....2930
      Bumper (Adjusting)....2930
    AIR CLEANER SERVICE....2931
      Replacing The Filter Elements....2931
    FUEL SYSTEM....2932
      Fuel Specifications....2932
      Biodiesel Blend Fuel....2932
      Filling The Fuel Tank....2933
      Fuel Filter....2934
      Removing Air From The Fuel System....2934
    ENGINE LUBRICATION SYSTEM....2935
      Checking And Adding Engine Oil....2935
      Engine Oil Chart....2935
      Removing And Replacing Oil And Filter....2935
    ENGINE COOLING SYSTEM....2937
      Cleaning....2937
      Checking Level....2937
      Removing And Replacing The Coolant....2938
    ELECTRICAL SYSTEM....2939
      Description....2939
      Fuse And Relay Location / Identification....2939
      Battery Maintenance....2939
      Using A Booster Battery (Jump Starting)....2940
      Removing And Installing The Battery....2941
    HYDRAULIC / HYDROSTATIC SYSTEM....2942
      Checking And Adding Fluid....2942
      Hydraulic / Hydrostatic Fluid Chart....2942
      Removing And Replacing Hydraulic / Hydrostatic Filter....2943
      Removing And Replacing Hydraulic Fluid....2943
      Hydraulic Reservoir Breather....2943
    SPARK ARRESTOR MUFFLER....2944
      Cleaning Procedure....2944
    TRACK TENSION....2945
      Adjustment....2945
    ALTERNATOR BELT....2946
      Belt Adjustment....2946
      Belt Replacement....2946
    DRIVE BELT....2947
      Description....2947
      Adjusting....2947
    TRACK ROLLER AND IDLER LUBRICATION....2948
      Procedure....2948
    LUBRICATING THE MINI LOADER....2949
      Lubrication Locations....2949
      Parking Brake Lubrication....2950
    PIVOT PINS....2950
      Inspection And Maintenance....2950
    BOB-TACH....2951
      Inspection And Maintenance....2951
    MINI LOADER STORAGE AND RETURN TO SERVICE....2952
      Storage....2952
      Return To Service....2952
  MACHINE SIGN TRANSLATIONS....2953
    MACHINE SIGN TRANSLATIONS....2955
      Service Schedule (7108578)....2955
      Warning (6737039)....2958
      Warning (6737040)....2961
      Warning (6737041)....2962
      Danger (6732142)....2963
      Warning (6576048)....2964
      Warning (6817225)....2964
      Warning (6804233)....2964
      Low Sulfur (7152748)....2964
      Lift Arm Support Device (6737045)....2965
  SPECIFICATIONS....2967
    (MT52) MINI LOADER SPECIFICATIONS....2969
      Machine Dimensions....2969
      Performance....2970
      Controls....2970
      Engine....2970
      Hydraulic System....2971
      Electrical....2971
      Drive System....2971
      Capacities....2971
      Tracks....2972
      Ground Pressure....2972
  WARRANTY....2973
    WARRANTY....2975
  ALPHABETICAL INDEX....2977
6986858 (3-10) - MT55 Mini Loader Operation & Maintenance Manual....2979
  OPERATOR SAFETY WARNINGS....2981
  CONTENTS....2983
  FOREWORD....2985
    BOBCAT COMPANY IS IS0 9001 CERTIFIED....2987
    REGULAR MAINTENANCE ITEMS....2987
    SERIAL NUMBER LOCATIONS....2988
      Mini Loader Serial Number....2988
      Engine Serial Number....2988
    DELIVERY REPORT....2988
    MINI LOADER IDENTIFICATION....2989
    FEATURES, ACCESSORIES AND ATTACHMENTS....2990
      Standard Items....2990
      Options and Accessories....2990
      Attachments....2990
      Buckets Available....2990
  SAFETY & TRAINING RESOURCES....2991
    SAFETY INSTRUCTIONS....2993
      Before Operation....2993
      Safe Operation Is The Operator?s Responsibility....2994
      Safe Operation Needs A Qualified Operator....2994
      Avoid Silica Dust....2995
    FIRE PREVENTION....2995
      Maintenance....2995
      Operation....2995
      Electrical....2995
      Hydraulic System....2996
      Fueling....2996
      Starting....2996
      Spark Arrestor Exhaust System....2996
      Welding And Grinding....2996
      Fire Extinguishers....2996
    MACHINE SIGNS (DECALS)....2997
    PUBLICATIONS AND TRAINING RESOURCES....2999
  OPERATING INSTRUCTIONS....3001
    CONTROLS IDENTIFICATION....3003
    CONTROLS OPERATION....3003
      Description....3003
    REVERSE STOP PANEL....3004
      Operation....3004
    LIFT ARM BY-PASS CONTROL....3004
      Operation....3004
    ENGINE SPEED CONTROL....3005
      Operation....3005
    PARKING BRAKE....3005
      Operation....3005
    DRIVING AND STEERING THE MINI LOADER....3006
      Operation....3006
    DRIVE / STEERING CONTROL TILT ADJUSTMENT....3007
      Operation....3007
    REVERSE TRAVEL SPEED CONTROL LEVER....3007
      Operation....3007
    STOPPING THE MINI LOADER....3008
      Using The Drive / Steering Control....3008
    HYDRAULIC CONTROLS....3009
      Description....3009
      Lift Arm Operation....3009
      Lift Arm Float Position....3009
      Tilt Operation....3009
      FRONT Auxiliary Hydraulics (CONTINUOUS FLOW)....3010
      Quick Couplers....3011
      Relieve Hydraulic Pressure (Mini Loader And Attachment)....3011
    ATTACHMENT CONTROL DEVICE (ACD) (IF EQUIPPED)....3012
      Description....3012
    RIDE-ON PLATFORM (HINGED) (OPTION)....3013
      Procedure....3013
    DAILY INSPECTION....3014
      Daily Inspection And Maintenance:....3015
    PRE-STARTING PROCEDURE....3016
      Procedure....3016
    STARTING THE ENGINE....3017
      Key Switch....3017
      Cold Temperature Starting....3018
      Warming The Hydraulic / Hydrostatic System....3018
    STOPPING THE ENGINE AND LEAVING THE MINI LOADER....3019
      Procedure....3019
    ATTACHMENTS....3020
      Choosing The Correct Bucket....3020
      Pallet Forks....3020
      Installing And Removing The Attachment....3021
    OPERATING PROCEDURE....3023
      Inspect The Work Area....3023
      Basic Operating Instructions....3023
      Driving On Rough Terrain And Over Curbs....3024
      Driving With An Auger Attachment Installed....3025
      Operating With A Full Bucket....3026
      Operating With An Empty Bucket....3026
      Filling The Bucket And Emptying The Bucket....3027
      Leveling The Ground Using Float....3028
      Digging And Filling A Hole....3028
    TOWING THE MINI LOADER....3029
      Procedure....3029
    LIFTING THE MINI LOADER....3030
      Four Point Lift....3030
    TRANSPORTING THE BOBCAT MINI LOADER....3031
      Loading And Unloading....3031
      Fastening....3031
  PREVENTIVE MAINTENANCE....3033
    MAINTENANCE SAFETY....3037
    SERVICE SCHEDULE....3039
      Chart....3039
    LIFT ARM BY-PASS CONTROL....3040
      Inspection....3040
    REVERSE STOP PANEL....3040
      Inspection....3040
    LIFT AND TILT FUNCTION LOCKOUTS....3041
      Inspection....3041
    NEUTRAL START INTERLOCKS....3042
      Inspecting Traction Drive Interlock....3042
      Inspecting The Continuous Flow Shutoff Lever....3042
      Inspecting Auxiliary Hydraulic Interlock....3042
    AUXILIARY HYDRAULIC CONTROL SYSTEM....3043
      Inspecting The Continuous Flow Shutoff Lever....3043
      Inspecting The Auxiliary Hydraulic Mode Switch (If Equipped)....3043
    LIFT ARM SUPPORT DEVICE....3044
      Installing....3044
      Removing....3044
    HOOD....3045
      Operation....3045
      Striker Adjustment....3045
    REAR DOOR....3046
      Opening And Closing....3046
      Striker Adjustment....3046
      Bumper Adjustment....3046
    AIR CLEANER SERVICE....3047
      Replacing The Filter Elements....3047
    FUEL SYSTEM....3048
      Fuel Specifications....3048
      Biodiesel Blend Fuel....3048
      Filling The Fuel Tank....3049
      Fuel Filter....3050
      Removing Air From The Fuel System....3050
    ENGINE LUBRICATION SYSTEM....3051
      Checking And Adding Engine Oil....3051
      Engine Oil Chart....3051
      Removing And Replacing Oil And Filter....3051
    ENGINE COOLING SYSTEM....3053
      Cleaning....3053
      Checking Level....3053
      Removing And Replacing The Coolant....3054
    ELECTRICAL SYSTEM....3055
      Description....3055
      Fuse And Relay Location / Identification....3055
      Battery Maintenance....3055
      Using A Booster Battery (Jump Starting)....3056
      Removing And Installing The Battery....3057
    HYDRAULIC / HYDROSTATIC SYSTEM....3058
      Checking And Adding Fluid....3058
      Hydraulic / Hydrostatic Fluid Chart....3058
      Removing And Replacing Hydraulic / Hydrostatic Filter....3059
      Removing And Replacing Hydraulic Fluid....3059
      Hydraulic Reservoir Breather....3059
    SPARK ARRESTOR MUFFLER....3060
      Cleaning Procedure....3060
    TRACK TENSION....3061
      Adjustment....3061
    ALTERNATOR BELT....3062
      Belt Adjustment....3062
      Belt Replacement....3062
    DRIVE BELT....3063
      Description....3063
      Adjusting....3063
    TRACK ROLLER AND IDLER LUBRICATION....3064
      Procedure....3064
    LUBRICATING THE MINI LOADER....3065
      Lubrication Locations....3065
      Parking Brake Lubrication....3066
    PIVOT PINS....3066
      Inspection And Maintenance....3066
    BOB-TACH....3067
      Inspection And Maintenance....3067
    MINI LOADER STORAGE AND RETURN TO SERVICE....3068
      Storage....3068
      Return To Service....3068
  MACHINE SIGN TRANSLATIONS....3069
    MACHINE SIGN TRANSLATIONS....3071
      Service Schedule (7108578)....3071
      Warning (6737039)....3074
      Warning (6737040)....3077
      Warning (6737041)....3078
      Danger (6732142)....3079
      Warning (6576048)....3080
      Warning (6817225)....3080
      Warning (6804233)....3080
      Low Sulfur (7152748)....3080
      Lift Arm Support Device (6737045)....3081
  SPECIFICATIONS....3083
    (MT55) MINI LOADER SPECIFICATIONS....3085
      Dimensions....3085
      Performance....3086
      Controls....3086
      Engine....3086
      Hydraulic System....3087
      Electrical....3087
      Drive System....3087
      Capacities....3087
      Tracks....3088
      Ground Pressure....3088
  WARRANTY....3089
    WARRANTY....3091
  ALPHABETICAL INDEX....3093
6986859 (3-11) - MT52, MT55 Mini Track Loader Service Manual....3095
  MAINTENANCE SAFETY....3097
  CONTENTS....3099
  FOREWORD....3101
    FOREWORD....3103
    SAFETY INSTRUCTIONS....3105
    FIRE PREVENTION....3107
      Maintenance....3107
      Operation....3107
      Electrical....3107
      Hydraulic System....3107
      Fueling....3107
      Starting....3107
      Spark Arrestor Exhaust System....3107
      Welding And Grinding....3108
      Fire Extinguishers....3108
    SERIAL NUMBER LOCATION....3109
      Loader Serial Number....3109
      Engine Serial Number....3109
    DELIVERY REPORT....3109
    MINI LOADER IDENTIFICATION....3110
    SAFETY & MAINTENANCE....3111
      LIFTING AND BLOCKING THE LOADER....3113
        Procedure....3113
        Four Point Lift....3114
      LIFT ARM SUPPORT DEVICE....3115
        Installing....3115
        Removing....3115
      TRANSPORTING MINI LOADER ON A TRAILER....3117
        Loading And Unloading....3117
        Fastening....3117
      TOWING THE MINI LOADER....3119
        Procedure....3119
      SERVICE SCHEDULE....3121
        Chart....3121
      AIR CLEANER SERVICE....3123
        Replacing Filter Elements....3123
      ENGINE COOLING SYSTEM....3125
        Cleaning....3125
        Checking Level....3125
        Removing And Replacing Coolant....3126
      FUEL SYSTEM....3127
        Fuel Specifications....3127
        Biodiesel Blend Fuel....3127
        Filling The Fuel Tank....3128
        Fuel Filter....3129
        Removing Air From The Fuel System....3129
      ENGINE LUBRICATION SYSTEM....3131
        Checking And Adding Engine Oil....3131
        Engine Oil Chart....3131
        Removing And Replacing Oil And Filter....3132
      HYDRAULIC / HYDROSTATIC SYSTEM....3135
        Checking And Adding Fluid....3135
        Hydraulic / Hydrostatic Fluid Chart....3135
        Removing And Replacing Hydraulic / Hydrostatic Filter....3136
        Removing And Replacing Hydraulic Fluid....3136
        Hydraulic Reservoir Breather....3136
      BOB-TACH....3137
        Inspection And Maintenance....3137
      LUBRICATION THE MINI LOADER....3139
        Lubrication Locations....3139
        Parking Brake Lubrication....3140
      SPARK ARRESTER MUFFLER....3141
        Cleaning Procedure....3141
      PIVOT PINS....3143
        Inspection And Maintenance....3143
      REVERSE STOP PANEL....3145
        Inspection....3145
      LIFT AND TILT FUNCTION LOCKOUTS....3147
        Inspection....3147
      LIFT ARM BYPASS CONTROL....3149
        Operation....3149
        Inspection....3149
      NEUTRAL START INTERLOCKS....3151
        Inspecting Traction Drive Interlock....3151
        Inspecting The Continuous Flow Shutoff Lever....3151
        Inspecting Auxiliary Hydraulic Interlock....3151
      AUXILIARY HYDRAULIC CONTROL SYSTEM....3153
        Inspecting The Continuous Flow Shutoff Lever....3153
        Inspecting The Auxiliary Hydraulic Mode Switch (If Equipped)....3153
  HYDRAULIC SYSTEM....3155
    HYDRAULIC / HYDROSTATIC SCHEMATICS....3157
    HYDRAULIC SYSTEM INFORMATION....3159
      Glossary Of Hydraulic / Hydrostatic Symbols....3159
      Troubleshooting....3163
    CYLINDER (LIFT)....3165
      Testing....3165
      Removal And Installation....3166
      Parts Identification....3167
      Disassembly And Assembly....3168
    CYLINDER (TILT)....3171
      Testing....3171
      Removal And Installation....3172
      Rod End Pivot Pin Bushing And Seal Removal And Installation....3173
      Parts Identification....3174
      Disassembly And Assembly....3175
    MAIN RELIEF VALVE....3179
      Description....3179
      Testing....3179
      Removal And Installation....3181
    PORT RELIEF VALVES....3183
      Testing (Lift)....3183
      Removal And Installation (Lift)....3185
      Testing (Tilt)....3186
      Removal And Installation (Tilt)....3188
    HYDRAULIC CONTROL VALVE....3191
      Description....3191
      Removal And Installation....3191
      Identification Chart....3194
      Disassembly And Assembly....3195
    HYDRAULIC PUMP....3215
      Direct Pump Testing....3215
      Removal And Installation....3217
      Parts Identification....3218
      Disassembly And Assembly....3219
    HYDRAULIC / HYDROSTATIC FILTER....3221
      Description....3221
      Housing Removal And Installation....3221
    HYDRAULIC FLUID RESERVOIR....3223
      Description....3223
      Removal And Installation....3223
    OIL COOLER....3225
      Description....3225
      Removal And Installation....3225
  HYDROSTATIC SYSTEM....3229
    HYDROSTATIC SYSTEM INFORMATION....3231
      Troubleshooting....3231
      Description....3232
    HYDROSTATIC MOTOR....3233
      Description....3233
      Removal And Installation....3233
      Parts Identification....3236
      Disassembly....3237
      Inspection....3243
      Assembly....3245
    CHARGE PRESSURE....3251
      Description....3251
      Testing....3251
      Sender Removal And Installation....3252
      Replacing Poppet Assembly....3252
    HYDROSTATIC PUMP....3253
      Description....3253
      Removal And Installation....3253
      Replenishing / High Pressure Relief Valve Removal And Installation....3255
      Parts Identification....3256
      Disassembly....3257
      Assembly....3263
    DRIVE BELT....3269
      Description....3269
      Shield Removal And Installation....3269
      Adjusting....3269
      Alignment....3270
      Belt Removal And Installation....3271
      Tensioner Pulley Removal And Installation....3271
    HYDROSTATIC CONTROLS....3273
      Steering Control Panel Removal And Installation....3273
      Steering Control Panel Disassembly And Assembly....3275
      Steering Shaft Assembly Removal And Installation....3279
      Steering Linkage Adjustment....3281
      Adjusting Reverse Speed Control....3285
  DRIVE SYSTEM....3287
    PARKING BRAKE....3289
      Description....3289
      Handle Removal And Installation....3289
      Cable Removal And Installation....3289
      Cable Adjustment....3290
      Linkage Assembly Removal And Assembly....3292
      Brake Pin Lubrication....3293
    TRACK CARRIAGE COMPONENTS....3295
      Description....3295
      Checking Tension....3295
      Adjusting Tension....3296
      Track Removal And Installation....3297
      Idler (Front) Removal And Installation....3298
      Idler (Front) Disassembly And Assembly....3298
      Idler (Rear) Removal And Installation....3299
      Idler (Rear) Parts Identification....3300
      Idler (Rear) Disassembly And Assembly....3301
      Tensioner Disassembly And Assembly....3302
      Roller Removal And Installation....3302
      Roller Parts Identification....3303
      Roller Disassembly And Assembly....3304
      Carriage Removal And Installation....3305
      Track Damage Identification....3306
  MAINFRAME....3317
    BOB-TACH....3319
      Removal And Installation....3319
      Seal Removal And Installation....3320
      Lever And Wedge Disassembly And Assembly....3321
    LIFT ARMS....3323
      Removal And Installation....3323
    REAR DOOR....3325
      Removal And Installation....3325
      Rear Door Panel Removal And Installation....3325
      Striker Removal And Installation....3326
      Striker (Adjusting)....3326
      Latch Removal And Installation....3327
      Bumper (Adjusting)....3327
    FUEL TANK....3329
      Removal And Installation....3329
      Fuel Level Sender Removal And Installation....3331
    INSTRUMENT PANEL....3333
      Removal And Installation....3333
    GRAB BAR....3335
      Removal And Installation....3335
    HOOD....3337
      Removal And Installation....3337
      Disassembly And Assembly....3337
      Latch Removal And Installation....3338
      Striker (Adjusting)....3338
    REVERSE STOP PANEL....3339
      Description....3339
      Inspecting Function....3339
      Removal And Installation....3339
      Reverse Stop Mechanism Removal And Installation....3340
      Reverse Stop Mechanism Disassembly And Assembly....3340
    BOTTOM ACCESS PANEL....3341
      Removal And Installation....3341
    RIDE-ON PLATFORM (HINGED)....3343
      Removal And Installation....3343
      Tire Removal And Installation....3343
      Caster With Bushing Removal And Installation....3344
      Caster With Bearings Removal And Installation....3345
      Caster With Bearings Disassembly And Assembly....3346
  ELECTRICAL SYSTEM & ANALYSIS....3349
    ELECTRICAL SCHEMATICS....3351
    ELECTRICAL SYSTEM INFORMATION....3354
      Glossary Of Electrical Symbols....3354
      Description....3357
      Troubleshooting....3358
      Fuse And Relay Location / Identification....3359
      Solenoid Testing....3359
    BATTERY....3360
      Removal And Installation....3360
      Servicing....3361
      Using A Booster Battery (Jump Starting)....3362
    ALTERNATOR....3364
      Belt Adjustment....3364
      Belt Replacement....3364
      Description....3365
      Alternator Output Test....3366
      Full Field Test....3366
      Alternator Voltage Testing....3367
      Removal And Installation....3368
      Parts Identification....3369
    STARTER....3370
      Testing....3370
      Removal And Installation....3371
      Parts Identification....3373
    INSTRUMENT PANEL....3374
      Component Removal And Installation....3374
    LIGHTS....3376
      Removal And Installation....3376
    NEUTRAL START SENSOR....3378
      Description....3378
      Removal And Installation....3378
      Sensor Activation Adjustment....3379
      Sensor Activation Bolt Removal....3379
    CONTINUOUS FLOW SHUTOFF SWITCH....3380
      Removal And Installation....3380
      Testing....3380
    ELECTRICAL / HYDRAULIC CONTROLS....3382
      Identification Chart....3382
    ELECTRIC COOLING FAN....3384
      Description....3384
      Removal And Installation....3384
  ENGINE SERVICE....3386
    ENGINE INFORMATION....3388
      Description....3388
      Specifications (Kubota D722-EB)....3389
      Specifications (Kubota D902-EB)....3393
      Torque Values....3397
      Troubleshooting....3398
      Engine Removal And Installation....3400
      Engine Mount Replacement....3404
      Compression - Checking....3405
    ENGINE SPEED CONTROL....3406
      Removal And Installation....3406
      Disassembly And Assembly....3407
      Cable Removal And Installation....3407
    MUFFLER....3410
      Removal And Installation....3410
    AIR CLEANER....3412
      Housing Removal And Installation....3412
    ENGINE COOLING SYSTEM....3414
      Radiator Removal And Installation....3414
      Fan Blade Removal And Installation....3417
      Water Pump Removal And Installation....3417
      Water Pump Disassembly And Assembly....3417
      Thermostat Housing Removal And Installation....3418
    LUBRICATION SYSTEM....3420
      Oil Pan Removal And Installation....3420
      Oil Pump Removal And Installation....3421
      Oil Pump Inspection....3421
      Engine Oil Pressure - Testing....3422
    FUEL SYSTEM....3424
      Fuel Camshaft Removal And Installation....3424
      Fuel Camshaft Governor Disassembly And Assembly....3424
      Fuel Shutoff Solenoid - Checking....3425
      Fuel Injection Pump Removal And Installation....3425
      Fuel Injection Pump - Timing....3427
      Fuel Injector Removal And Installation....3429
      Fuel Injector Nozzle Pressure - Checking....3430
      Nozzle Spray Condition....3431
      Valve Seat Tightness....3432
    CYLINDER HEAD....3434
      Glow Plugs - Testing....3434
      Glow Plugs Removal And Installation....3434
      Valve Clearance Adjustment....3435
      Valve Timing - Checking....3436
      Cylinder Head Removal And Installation....3437
      Cylinder Head Disassembly And Assembly....3439
      Cylinder Head - Servicing....3439
      Cylinder Head Top Clearance....3440
      Valve Guide - Checking....3440
      Reconditioning The Valve And Valve Seat....3442
      Valve Spring....3443
      Valve Tappets....3444
      Rocker Arm And Shaft - Checking....3444
    CRANKSHAFT AND PISTONS....3446
      Piston And Connecting Rod Removal And Installation....3446
      Piston And Connecting Rod - Servicing....3449
      Cylinder Bore - Checking....3451
      Connecting Rod Alignment....3452
      Crankshaft Gear Removal And Installation....3452
      Crankshaft And Bearings Removal And Installation....3453
      Crankshaft And Bearings - Servicing....3456
    CAMSHAFT AND TIMING GEARS....3458
      Timing Gearcase Cover Removal And Installation....3458
      Timing Gears Backlash - Checking....3460
      Idler Gear And Shaft Removal And Installation....3460
      Camshaft - Servicing....3461
      Idler Gear And Shaft Servicing....3463
    HYDRAULIC GEAR PUMP MOUNTING BRACKET....3464
      Removal And Installation....3464
      Hydraulic Gear Pump Coupler Removal And Installation....3465
    FLYWHEEL AND ENGINE MOUNTING BRACKET....3466
      Flywheel Removal And Installation....3466
      Ring Gear Removal And Installation....3466
      Engine Mounting Bracket Removal And Installation....3467
  SPECIFICATIONS....3468
    (MT52) MINI LOADER SPECIFICATIONS....3470
      Machine Dimensions....3470
      Performance....3471
      Controls....3471
      Engine....3471
      Hydraulic System....3472
      Electrical....3472
      Drive System....3472
      Capacities....3472
      Tracks....3473
      Ground Pressure....3473
    (MT55) MINI LOADER SPECIFICATIONS....3474
      Machine Dimensions....3474
      Performance....3475
      Controls....3475
      Engine....3475
      Hydraulic System....3476
      Electrical....3476
      Drive System....3476
      Capacities....3476
      Tracks....3477
      Ground Pressure....3477
    TORQUE SPECIFICATIONS FOR BOLTS....3478
      Torque For General SAE Bolts....3478
      Torque For General Metric Bolts....3479
    HYDRAULIC CONNECTION SPECIFICATIONS....3480
      O-ring Face Seal Connection....3480
      Straight Thread O-ring Fitting....3481
      Tubelines And Hoses....3481
      Flare Fitting....3481
      Port Seal Fitting....3482
    HYDRAULIC FLUID SPECIFICATIONS....3484
      Specifications....3484
    CONVERSIONS....3486
      Decimal And Millimeter Equivalent Chart....3486
      U.S. To Metric Conversion Chart....3486
  ALPHABETICAL INDEX....3488
  SERVICE MANUAL REVISION....3490
    Revision No: MT52, MT55 - 1....3490
    Revision No: MT52, MT55 - 2....3492
    Revision No: MT52, MT55 - 3....3494
    Revision No: MT52, MT55 - 4....3496
6986859 (6-14) - MT52, MT55 Mini Track Loader Service Manual....3498
  MAINTENANCE SAFETY....3500
  CONTENTS....3502
  FOREWORD....3504
    FOREWORD....3506
    SAFETY INSTRUCTIONS....3508
    FIRE PREVENTION....3510
      Maintenance....3510
      Operation....3510
      Electrical....3510
      Hydraulic System....3510
      Fueling....3510
      Starting....3510
      Spark Arrester Exhaust System....3510
      Welding And Grinding....3511
      Fire Extinguishers....3511
    SERIAL NUMBER LOCATION....3512
      Loader Serial Number....3512
      Engine Serial Number....3512
    DELIVERY REPORT....3512
    MINI LOADER IDENTIFICATION....3513
  SAFETY AND MAINTENANCE....3514
    LIFTING AND BLOCKING THE MINI LOADER....3516
      Procedure....3516
      Four Point Lift....3517
    LIFT ARM SUPPORT DEVICE....3518
      Installing....3518
      Removing....3518
    TRANSPORTING THE MINI LOADER ON A TRAILER....3520
      Loading And Unloading....3520
      Fastening....3520
    TOWING THE MINI LOADER....3522
      Procedure....3522
    SERVICE SCHEDULE....3524
      Maintenance Intervals....3524
    AIR CLEANER SERVICE....3526
      Replacing Filter Elements....3526
    ENGINE COOLING SYSTEM....3528
      Cleaning....3528
      Checking Level....3528
      Removing And Replacing Coolant....3529
    FUEL SYSTEM....3530
      Fuel Specifications....3530
      Biodiesel Blend Fuel....3530
      Filling The Fuel Tank....3531
      Fuel Filter....3532
      Removing Air From The Fuel System....3532
    ENGINE LUBRICATION SYSTEM....3534
      Checking And Adding Engine Oil....3534
      Engine Oil Chart....3534
      Removing And Replacing Oil And Filter....3535
    HYDRAULIC / HYDROSTATIC SYSTEM....3538
      Checking And Adding Fluid....3538
      Hydraulic / Hydrostatic Fluid Chart....3538
      Removing And Replacing Hydraulic / Hydrostatic Filter....3539
      Removing And Replacing Hydraulic Fluid....3539
      Hydraulic Reservoir Breather....3539
    BOB-TACH....3540
      Inspection And Maintenance....3540
    LUBRICATING THE MINI LOADER....3542
      Lubrication Locations....3542
      Parking Brake Lubrication....3543
    SPARK ARRESTER MUFFLER....3544
      Cleaning Procedure....3544
    PIVOT PINS....3546
      Inspection And Maintenance....3546
    REVERSE STOP PANEL....3548
      Inspection....3548
    LIFT AND TILT FUNCTION LOCKOUTS....3550
      Inspection....3550
    LIFT ARM BYPASS CONTROL....3552
      Operation....3552
      Inspection....3552
    NEUTRAL START INTERLOCKS....3554
      Inspecting Traction Drive Interlock....3554
      Inspecting The Continuous Flow Shutoff Lever....3554
      Inspecting Auxiliary Hydraulic Interlock....3554
    AUXILIARY HYDRAULIC CONTROL SYSTEM....3556
      Inspecting The Continuous Flow Shutoff Lever....3556
      Inspecting The Auxiliary Hydraulic Mode Switch (If Equipped)....3556
  HYDRAULIC SYSTEM....3558
    HYDRAULIC SCHEMATICS....3560
    HYDRAULIC SYSTEM INFORMATION....3562
      Glossary Of Hydraulic / Hydrostatic Symbols....3562
      Troubleshooting....3566
    CYLINDER (LIFT)....3568
      Testing....3568
      Removal And Installation....3569
      Parts Identification....3570
      Disassembly And Assembly....3571
    CYLINDER (TILT)....3574
      Testing....3574
      Removal And Installation....3575
      Rod End Pivot Pin Bushing And Seal Removal And Installation....3576
      Parts Identification....3577
      Disassembly And Assembly....3578
    MAIN RELIEF VALVE....3582
      Description....3582
      Testing....3582
      Removal And Installation....3584
    PORT RELIEF VALVES....3586
      Testing (Lift)....3586
      Removal And Installation (Lift)....3588
      Testing (Tilt)....3589
      Removal And Installation (Tilt)....3591
    HYDRAULIC CONTROL VALVE (A3WR11001 - A3WR17614, A3WT11001 - A3WT17578, A3WU11001 - A3WU13084)....3594
      Description....3594
      Removal And Installation....3594
      Identification Chart....3597
      Disassembly And Assembly....3598
    HYDRAULIC CONTROL VALVE (A3WR17615 & Above, A3WT17579 & Above, A3WU13085 & Above, B38R11001 & Above, B38T11001 & Above, B38U11001 & Above)....3618
      Description....3618
      Removal And Installation....3618
      Identification Chart....3621
      Disassembly And Assembly....3622
    HYDRAULIC PUMP....3640
      Direct Pump Testing....3640
      Removal And Installation....3642
      Parts Identification....3643
      Disassembly And Assembly....3644
    HYDRAULIC / HYDROSTATIC FILTER....3646
      Description....3646
      Housing Removal And Installation....3646
    HYDRAULIC FLUID RESERVOIR....3648
      Description....3648
      Removal And Installation....3648
    OIL COOLER....3652
      Description....3652
      Removal And Installation....3652
  HYDROSTATIC SYSTEM....3656
    HYDROSTATIC SYSTEM INFORMATION....3658
      Troubleshooting....3658
      Description....3659
    HYDROSTATIC MOTOR....3660
      Description....3660
      Removal And Installation....3660
      Parts Identification....3663
      Disassembly....3664
      Inspection....3670
      Assembly....3672
    CHARGE PRESSURE....3678
      Description....3678
      Testing....3678
      Sender Removal And Installation....3679
      Replacing Poppet Assembly....3679
    HYDROSTATIC PUMP....3680
      Description....3680
      Removal And Installation....3680
      Replenishing / High Pressure Relief Valve Removal And Installation....3682
      Parts Identification....3683
      Disassembly....3684
      Assembly....3690
    DRIVE BELT....3696
      Description....3696
      Shield Removal And Installation....3696
      Adjusting....3696
      Alignment....3697
      Belt Removal And Installation....3698
      Tensioner Pulley Removal And Installation....3698
    HYDROSTATIC CONTROLS....3700
      Steering Control Panel Removal And Installation....3700
      Steering Control Panel Disassembly And Assembly....3702
      Steering Shaft Assembly Removal And Installation....3706
      Steering Linkage Adjustment....3708
      Adjusting Reverse Speed Control....3712
  DRIVE SYSTEM....3714
    PARKING BRAKE....3716
      Description....3716
      Handle Removal And Installation....3716
      Cable Removal And Installation....3716
      Cable Adjustment....3717
      Linkage Assembly Removal And Assembly....3719
      Brake Pin Lubrication....3720
    TRACK CARRIAGE COMPONENTS....3722
      Description....3722
      Checking Tension....3722
      Adjusting Tension....3723
      Track Removal And Installation....3724
      Idler (Front) Removal And Installation....3725
      Idler (Front) Disassembly And Assembly....3725
      Idler (Rear) Removal And Installation....3726
      Idler (Rear) Parts Identification....3727
      Idler (Rear) Disassembly And Assembly....3728
      Tensioner Disassembly And Assembly....3729
      Roller Removal And Installation....3729
      Roller Parts Identification....3730
      Roller Disassembly And Assembly....3731
      Carriage Removal And Installation....3732
      Track Damage Identification....3733
  MAINFRAME....3744
    BOB-TACH....3746
      Removal And Installation....3746
      Seal Removal And Installation....3747
      Lever And Wedge Disassembly And Assembly....3748
    LIFT ARMS....3750
      Removal And Installation....3750
    REAR DOOR....3752
      Removal And Installation....3752
      Rear Door Panel Removal And Installation....3752
      Striker Removal And Installation....3753
      Striker (Adjusting)....3753
      Latch Removal And Installation....3754
      Bumper (Adjusting)....3754
    FUEL TANK....3756
      Removal And Installation....3756
      Fuel Level Sender Removal And Installation....3758
    INSTRUMENT PANEL....3760
      Removal And Installation....3760
    GRAB BAR....3762
      Removal And Installation....3762
    HOOD....3764
      Removal And Installation....3764
      Disassembly And Assembly....3764
      Latch Removal And Installation....3765
      Striker (Adjusting)....3765
    REVERSE STOP PANEL....3766
      Description....3766
      Inspecting Function....3766
      Removal And Installation....3766
      Reverse Stop Mechanism Removal And Installation....3767
      Reverse Stop Mechanism Disassembly And Assembly....3767
    BOTTOM ACCESS PANEL....3768
      Removal And Installation....3768
    RIDE-ON PLATFORM (HINGED)....3770
      Removal And Installation....3770
      Tire Removal And Installation....3770
      Caster With Bushing Removal And Installation....3771
      Caster With Bearings Removal And Installation....3772
      Caster With Bearings Disassembly And Assembly....3773
  ELECTRICAL SYSTEM AND ANALYSIS....3776
    ELECTRICAL SCHEMATICS....3778
    ELECTRICAL SYSTEM INFORMATION....3781
      Glossary Of Electrical Symbols....3781
      Description....3784
      Troubleshooting....3785
      Fuse And Relay Location / Identification....3786
      Solenoid Testing....3786
    BATTERY....3787
      Removal And Installation....3787
      Servicing....3788
      Using A Booster Battery (Jump Starting)....3789
    ALTERNATOR....3791
      Belt Adjustment....3791
      Belt Replacement....3791
      Description....3792
      Alternator Output Test....3793
      Full Field Test....3793
      Alternator Voltage Testing....3794
      Removal And Installation....3795
      Parts Identification....3796
    STARTER....3797
      Testing....3797
      Removal And Installation....3798
      Parts Identification....3800
    INSTRUMENT PANEL....3801
      Component Removal And Installation....3801
    LIGHTS....3803
      Removal And Installation....3803
    NEUTRAL START SENSOR....3805
      Description....3805
      Removal And Installation....3805
      Sensor Activation Adjustment....3806
      Sensor Activation Bolt Removal....3806
    CONTINUOUS FLOW SHUTOFF SWITCH....3807
      Removal And Installation....3807
      Testing....3807
    ELECTRICAL / HYDRAULIC CONTROLS....3809
      Identification Chart....3809
    ELECTRIC COOLING FAN....3811
      Description....3811
      Removal And Installation....3811
  ENGINE SERVICE....3813
    ENGINE INFORMATION....3815
      Description....3815
      Specifications (Kubota D722-EB)....3816
      Specifications (Kubota D902-EB)....3820
      Torque Values....3824
      Troubleshooting....3825
      Engine Removal And Installation....3827
      Engine Mount Replacement....3831
      Compression - Checking....3832
    ENGINE SPEED CONTROL....3833
      Removal And Installation....3833
      Disassembly And Assembly....3834
      Cable Removal And Installation....3834
    MUFFLER....3837
      Removal And Installation....3837
    AIR CLEANER....3839
      Housing Removal And Installation....3839
    ENGINE COOLING SYSTEM....3841
      Radiator Removal And Installation....3841
      Fan Blade Removal And Installation....3844
      Water Pump Removal And Installation....3844
      Water Pump Disassembly And Assembly....3844
      Thermostat Housing Removal And Installation....3845
    LUBRICATION SYSTEM....3847
      Oil Pan Removal And Installation....3847
      Oil Pump Removal And Installation....3848
      Oil Pump Inspection....3848
      Engine Oil Pressure - Testing....3849
    FUEL SYSTEM....3851
      Fuel Camshaft Removal And Installation....3851
      Fuel Camshaft Governor Disassembly And Assembly....3851
      Fuel Shutoff Solenoid - Checking....3852
      Fuel Injection Pump Removal And Installation....3852
      Fuel Injection Pump - Timing....3854
      Fuel Injector Removal And Installation....3856
      Fuel Injector Nozzle Pressure - Checking....3857
      Nozzle Spray Condition....3858
      Valve Seat Tightness....3859
    CYLINDER HEAD....3861
      Glow Plugs - Testing....3861
      Glow Plugs Removal And Installation....3861
      Valve Clearance Adjustment....3862
      Valve Timing - Checking....3863
      Cylinder Head Removal And Installation....3864
      Cylinder Head Disassembly And Assembly....3866
      Cylinder Head - Servicing....3866
      Cylinder Head Top Clearance....3867
      Valve Guide - Checking....3867
      Reconditioning The Valve And Valve Seat....3869
      Valve Spring....3870
      Valve Tappets....3871
      Rocker Arm And Shaft - Checking....3871
    CRANKSHAFT AND PISTONS....3873
      Piston And Connecting Rod Removal And Installation....3873
      Piston And Connecting Rod - Servicing....3876
      Cylinder Bore - Checking....3878
      Connecting Rod Alignment....3879
      Crankshaft Gear Removal And Installation....3879
      Crankshaft And Bearings Removal And Installation....3880
      Crankshaft And Bearings - Servicing....3883
    CAMSHAFT AND TIMING GEARS....3885
      Timing Gearcase Cover Removal And Installation....3885
      Timing Gears Backlash - Checking....3887
      Idler Gear And Shaft Removal And Installation....3887
      Camshaft - Servicing....3888
      Idler Gear And Shaft Servicing....3890
    HYDRAULIC GEAR PUMP MOUNTING BRACKET....3891
      Removal And Installation....3891
      Hydraulic Gear Pump Coupler Removal And Installation....3892
    FLYWHEEL AND ENGINE MOUNTING BRACKET....3893
      Flywheel Removal And Installation....3893
      Ring Gear Removal And Installation....3893
      Engine Mounting Bracket Removal And Installation....3894
  SPECIFICATIONS....3895
    (MT52) MINI LOADER SPECIFICATIONS....3897
      Machine Dimensions....3897
      Performance....3898
      Controls....3898
      Engine....3898
      Hydraulic System....3899
      Electrical....3899
      Drive System....3899
      Capacities....3899
      Tracks....3900
      Ground Pressure....3900
    (MT55) MINI LOADER SPECIFICATIONS....3901
      Machine Dimensions....3901
      Performance....3902
      Controls....3902
      Engine....3902
      Hydraulic System....3903
      Electrical....3903
      Drive System....3903
      Capacities....3903
      Tracks....3904
      Ground Pressure....3904
    (MT52) TECHNICAL SERVICE GUIDE SPECIFICATIONS - (S/N A3Wr11001 & Above, S/N A3WS11001 & Above, S/N B38R11001 & Above)....3905
      Engine....3905
      Engine Torques....3905
      Cooling System....3905
      Electrical....3905
      Loader Torques....3906
      Hydraulic System....3906
      Fuel Consumption....3906
    (MT55) TECHNICAL SERVICE GUIDE SPECIFICATIONS - (S/N A3WT11001 & Above, S/N A3WU11001 & Above, S/N B38T11001 & Above, S/N B38U11001 & Above)....3907
      Engine....3907
      Engine Torques....3907
      Cooling System....3907
      Electrical....3907
      Loader Torques....3908
      Hydraulic System....3908
      Fuel Consumption....3908
    TORQUE SPECIFICATIONS FOR BOLTS....3909
      Torque For General SAE Bolts....3909
      Torque For General Metric Bolts....3910
    HYDRAULIC CONNECTION SPECIFICATIONS....3911
      O-ring Face Seal Connection....3911
      Straight Thread O-ring Fitting....3912
      Tubelines And Hoses....3912
      Flare Fitting....3912
      Port Seal Fitting....3913
    HYDRAULIC FLUID SPECIFICATIONS....3915
      Specifications....3915
    CONVERSIONS....3917
      Decimal And Millimeter Equivalent Chart....3917
      U.S. To Metric Conversion Chart....3917
    SERVICE TOOLS REQUIRED....3919
      Hydraulic Tools....3919
      Engine Tools....3920
  ALPHABETICAL INDEX....3921
6986859 (9-10) - MT52, MT55 Mini Track Loader Service Manual....3923
  MAINTENANCE SAFETY....3925
  CONTENTS....3927
  FOREWORD....3929
    FOREWORD....3931
    SAFETY INSTRUCTIONS....3933
    FIRE PREVENTION....3935
      Maintenance....3935
      Operation....3935
      Electrical....3935
      Hydraulic System....3935
      Fueling....3935
      Starting....3935
      Spark Arrestor Exhaust System....3935
      Welding And Grinding....3936
      Fire Extinguishers....3936
    SERIAL NUMBER LOCATION....3937
      Loader Serial Number....3937
      Engine Serial Number....3937
    DELIVERY REPORT....3937
    MINI LOADER IDENTIFICATION....3938
  SAFETY & MAINTENANCE....3939
    LIFTING AND BLOCKING THE LOADER....3941
      Procedure....3941
      Four Point Lift....3942
    LIFT ARM SUPPORT DEVICE....3943
      Installing....3943
      Removing....3943
    TRANSPORTING MINI LOADER ON A TRAILER....3945
      Loading And Unloading....3945
      Fastening....3945
    TOWING THE MINI LOADER....3947
      Procedure....3947
    SERVICE SCHEDULE....3949
      Chart....3949
    AIR CLEANER SERVICE....3951
      Replacing Filter Elements....3951
    ENGINE COOLING SYSTEM....3953
      Cleaning....3953
      Checking Level....3953
      Removing And Replacing Coolant....3954
    FUEL SYSTEM....3955
      Fuel Specifications....3955
      Biodiesel Blend Fuel....3955
      Filling The Fuel Tank....3956
      Fuel Filter....3957
      Removing Air From The Fuel System....3957
    ENGINE LUBRICATION SYSTEM....3959
      Checking And Adding Engine Oil....3959
      Engine Oil Chart....3959
      Removing And Replacing Oil And Filter....3959
    HYDRAULIC / HYDROSTATIC SYSTEM....3961
      Checking And Adding Fluid....3961
      Hydraulic / Hydrostatic Fluid Chart....3961
      Removing And Replacing Hydraulic / Hydrostatic Filter....3962
      Removing And Replacing Hydraulic Fluid....3962
      Hydraulic Reservoir Breather....3962
    BOB-TACH....3963
      Inspection And Maintenance....3963
    LUBRICATION THE MINI LOADER....3965
      Lubrication Locations....3965
      Parking Brake Lubrication....3966
    SPARK ARRESTOR MUFFLER....3967
      Cleaning Procedure....3967
    PIVOT PINS....3969
      Inspection And Maintenance....3969
    REVERSE STOP PANEL....3971
      Inspection....3971
    LIFT AND TILT FUNCTION LOCKOUTS....3973
      Inspection....3973
    LIFT ARM BYPASS CONTROL....3975
      Operation....3975
      Inspection....3975
    NEUTRAL START INTERLOCKS....3977
      Inspecting Traction Drive Interlock....3977
      Inspecting The Continuous Flow Shutoff Lever....3977
      Inspecting Auxiliary Hydraulic Interlock....3977
    AUXILIARY HYDRAULIC CONTROL SYSTEM....3979
      Inspecting The Continuous Flow Shutoff Lever....3979
      Inspecting The Auxiliary Hydraulic Mode Switch (If Equipped)....3979
  HYDRAULIC SYSTEM....3981
    HYDRAULIC SCHEMATIC....3983
    HYDRAULIC SYSTEM INFORMATION....3985
      Glossary Of Hydraulic / Hydrostatic Symbols....3985
      Troubleshooting....3989
    CYLINDER (LIFT)....3991
      Testing....3991
      Removal And Installation....3992
      Parts Identification....3993
      Disassembly And Assembly....3994
    CYLINDER (TILT)....3997
      Testing....3997
      Removal And Installation....3998
      Rod End Pivot Pin Bushing And Seal Removal And Installation....3999
      Parts Identification....4000
      Disassembly And Assembly....4001
    MAIN RELIEF VALVE....4005
      Description....4005
      Testing....4005
      Removal And Installation....4007
    PORT RELIEF VALVES....4009
      Testing (Lift)....4009
      Removal And Installation (Lift)....4011
      Testing (Tilt)....4012
      Removal And Installation (Tilt)....4014
    HYDRAULIC CONTROL VALVE....4017
      Description....4017
      Removal And Installation....4017
      Identification Chart....4020
      Disassembly And Assembly....4021
    HYDRAULIC PUMP....4041
      Direct Pump Testing....4041
      Removal And Installation....4043
      Parts Identification....4044
      Disassembly And Assembly....4045
    HYDRAULIC / HYDROSTATIC FILTER....4047
      Description....4047
      Housing Removal And Installation....4047
    HYDRAULIC FLUID RESERVOIR....4049
      Description....4049
      Removal And Installation....4049
    OIL COOLER....4051
      Description....4051
      Removal And Installation....4051
  HYDROSTATIC SYSTEM....4055
    HYDROSTATIC SYSTEM INFORMATION....4057
      Troubleshooting....4057
      Description....4058
    HYDROSTATIC MOTOR....4059
      Description....4059
      Removal And Installation....4059
      Parts Identification....4062
      Disassembly....4063
      Inspection....4069
      Assembly....4071
    CHARGE PRESSURE....4077
      Description....4077
      Testing....4077
      Sender Removal And Installation....4078
      Replacing Poppet Assembly....4078
    HYDROSTATIC PUMP....4079
      Description....4079
      Removal And Installation....4079
      Replenishing / High Pressure Relief Valve Removal And Installation....4081
      Parts Identification....4082
      Disassembly....4083
      Assembly....4090
    DRIVE BELT....4095
      Description....4095
      Shield Removal And Installation....4095
      Adjusting....4095
      Alignment....4096
      Belt Removal And Installation....4097
      Tensioner Pulley Removal And Installation....4097
    HYDROSTATIC CONTROLS....4099
      Steering Control Panel Removal And Installation....4099
      Steering Control Panel Disassembly And Assembly....4101
      Steering Shaft Assembly Removal And Installation....4105
      Steering Linkage Adjustment....4107
      Adjusting Reverse Speed Control....4111
  DRIVE SYSTEM....4113
    PARKING BRAKE....4115
      Description....4115
      Handle Removal And Installation....4115
      Cable Removal And Installation....4115
      Cable Adjustment....4116
      Linkage Assembly Removal And Assembly....4118
      Brake Pin Lubrication....4119
    TRACK CARRIAGE COMPONENTS....4121
      Description....4121
      Checking Tension....4121
      Adjusting Tension....4122
      Track Removal And Installation....4123
      Idler (Front) Removal And Installation....4124
      Idler (Front) Disassembly And Assembly....4124
      Idler (Rear) Removal And Installation....4125
      Idler (Rear) Parts Identification....4126
      Idler (Rear) Disassembly And Assembly....4127
      Tensioner Disassembly And Assembly....4128
      Roller Removal And Installation....4128
      Roller Parts Identification....4129
      Roller Disassembly And Assembly....4130
      Carriage Removal And Installation....4131
      Track Damage Identification....4132
  MAINFRAME....4143
    BOB-TACH....4145
      Removal And Installation....4145
      Seal Removal And Installation....4146
      Lever And Wedge Disassembly And Assembly....4147
    LIFT ARMS....4149
      Removal And Installation....4149
    REAR DOOR....4151
      Removal And Installation....4151
      Rear Door Panel Removal And Installation....4151
      Striker Removal And Installation....4152
      Striker (Adjusting)....4152
      Latch Removal And Installation....4153
      Bumper (Adjusting)....4153
    FUEL TANK....4155
      Removal And Installation....4155
      Fuel Level Sender Removal And Installation....4157
    INSTRUMENT PANEL....4159
      Removal And Installation....4159
    GRAB BAR....4161
      Removal And Installation....4161
    HOOD....4163
      Removal And Installation....4163
      Disassembly And Assembly....4163
      Latch Removal And Installation....4164
      Striker (Adjusting)....4164
    REVERSE STOP PANEL....4165
      Description....4165
      Inspecting Function....4165
      Removal And Installation....4165
      Reverse Stop Mechanism Removal And Installation....4166
      Reverse Stop Mechanism Disassembly And Assembly....4166
    BOTTOM ACCESS PANEL....4167
      Removal And Installation....4167
    RIDE-ON PLATFORM (HINGED)....4169
      Removal And Installation....4169
      Tire Removal And Installation....4169
      Caster With Bushing Removal And Installation....4170
      Caster With Bearings Removal And Installation....4171
      Caster With Bearings Disassembly And Assembly....4172
  ELECTRICAL SYSTEM & ANALYSIS....4175
    ELECTRICAL SCHEMATIC....4177
    ELECTRICAL SYSTEM INFORMATION....4180
      Glossary Of Electrical Symbols....4180
      Description....4183
      Troubleshooting....4184
      Fuse And Relay Location / Identification....4185
      Solenoid Testing....4185
    BATTERY....4186
      Removal And Installation....4186
      Servicing....4187
      Using A Booster Battery (Jump Starting)....4187
    ALTERNATOR....4190
      Belt Adjustment....4190
      Belt Replacement....4190
      Description....4191
      Alternator Output Test....4192
      Full Field Test....4192
      Alternator Voltage Testing....4193
      Removal And Installation....4194
      Parts Identification....4195
    STARTER....4196
      Testing....4196
      Removal And Installation....4197
      Parts Identification....4199
    INSTRUMENT PANEL....4200
      Component Removal And Installation....4200
    LIGHTS....4202
      Removal And Installation....4202
    NEUTRAL START SENSOR....4204
      Description....4204
      Removal And Installation....4204
      Sensor Activation Adjustment....4205
      Sensor Activation Bolt Removal....4205
    CONTINUOUS FLOW SHUTOFF SWITCH....4206
      Removal And Installation....4206
      Testing....4206
    ELECTRICAL / HYDRAULIC CONTROLS....4208
      Identification Chart....4208
    ELECTRIC COOLING FAN....4210
      Description....4210
      Removal And Installation....4210
  ENGINE SERVICE....4212
    ENGINE INFORMATION....4214
      Description....4214
      Specifications (Kubota D722-EB)....4215
      Specifications (Kubota D902-EB)....4219
      Torque Values....4223
      Troubleshooting....4224
      Engine Removal And Installation....4226
      Engine Mount Replacement....4230
      Compression - Checking....4231
    ENGINE SPEED CONTROL....4232
      Removal And Installation....4232
      Disassembly And Assembly....4233
      Cable Removal And Installation....4233
    MUFFLER....4236
      Removal And Installation....4236
    AIR CLEANER....4238
      Housing Removal And Installation....4238
    ENGINE COOLING SYSTEM....4240
      Radiator Removal And Installation....4240
      Fan Blade Removal And Installation....4243
      Water Pump Removal And Installation....4243
      Water Pump Disassembly And Assembly....4243
      Thermostat Housing Removal And Installation....4244
    LUBRICATION SYSTEM....4246
      Oil Pan Removal And Installation....4246
      Oil Pump Removal And Installation....4247
      Oil Pump Inspection....4247
      Engine Oil Pressure - Testing....4248
    FUEL SYSTEM....4250
      Fuel Camshaft Removal And Installation....4250
      Fuel Camshaft Governor Disassembly And Assembly....4250
      Fuel Shutoff Solenoid - Checking....4251
      Fuel Injection Pump Removal And Installation....4251
      Fuel Injection Pump - Timing....4253
      Fuel Injector Removal And Installation....4255
      Fuel Injector Nozzle Pressure - Checking....4256
      Nozzle Spray Condition....4257
      Valve Seat Tightness....4258
    CYLINDER HEAD....4260
      Glow Plugs - Testing....4260
      Glow Plugs Removal And Installation....4260
      Valve Clearance Adjustment....4261
      Valve Timing - Checking....4262
      Cylinder Head Removal And Installation....4263
      Cylinder Head Disassembly And Assembly....4265
      Cylinder Head - Servicing....4265
      Cylinder Head Top Clearance....4266
      Valve Guide - Checking....4266
      Reconditioning The Valve And Valve Seat....4268
      Valve Spring....4269
      Valve Tappets....4270
      Rocker Arm And Shaft - Checking....4270
    CRANKSHAFT AND PISTONS....4272
      Piston And Connecting Rod Removal And Installation....4272
      Piston And Connecting Rod - Servicing....4275
      Cylinder Bore - Checking....4277
      Connecting Rod Alignment....4278
      Crankshaft Gear Removal And Installation....4278
      Crankshaft And Bearings Removal And Installation....4279
      Crankshaft And Bearings - Servicing....4282
    CAMSHAFT AND TIMING GEARS....4284
      Timing Gearcase Cover Removal And Installation....4284
      Timing Gears Backlash - Checking....4286
      Idler Gear And Shaft Removal And Installation....4286
      Camshaft - Servicing....4287
      Idler Gear And Shaft Servicing....4289
    HYDRAULIC GEAR PUMP MOUNTING BRACKET....4290
      Removal And Installation....4290
      Hydraulic Gear Pump Coupler Removal And Installation....4291
    FLYWHEEL AND ENGINE MOUNTING BRACKET....4292
      Flywheel Removal And Installation....4292
      Ring Gear Removal And Installation....4292
      Engine Mounting Bracket Removal And Installation....4293
  SPECIFICATIONS....4294
    (MT52) MINI LOADER SPECIFICATIONS....4296
      Machine Dimensions....4296
      Performance....4297
      Controls....4297
      Engine....4297
      Hydraulic System....4298
      Electrical....4298
      Drive System....4298
      Capacities....4298
      Tracks....4299
      Ground Pressure....4299
    (MT55) MINI LOADER SPECIFICATIONS....4300
      Machine Dimensions....4300
      Performance....4301
      Controls....4301
      Engine....4301
      Hydraulic System....4302
      Electrical....4302
      Drive System....4302
      Capacities....4302
      Tracks....4303
      Ground Pressure....4303
    TORQUE SPECIFICATIONS FOR BOLTS....4304
      Torque For General SAE Bolts....4304
      Torque For General Metric Bolts....4305
    HYDRAULIC CONNECTION SPECIFICATIONS....4306
      O-ring Face Seal Connection....4306
      Straight Thread O-ring Fitting....4307
      Tubelines And Hoses....4307
      Flare Fitting....4307
      Port Seal Fitting....4308
    HYDRAULIC FLUID SPECIFICATIONS....4310
      Specifications....4310
    CONVERSIONS....4312
      Decimal And Millimeter Equivalent Chart....4312
      U.S. To Metric Conversion Chart....4312
  ALPHABETICAL INDEX....4314
  SERVICE MANUAL REVISION....4316
    Revision No: MT52, MT55 - 1....4316
    Revision No: MT52, MT55 - 2....4318
    Revision No: MT52, MT55 - 3....4320

Bobcat Mini Track Loaders MT50, MT52, MT55 Repair Service Manuals