Volvo ECR88 Compact Excavators Service Repair Manual
Complete service repair manual with Electrical Wiring Diagrams for Volvo ECR88 Compact Excavators, with all the technical information to maintain, diagnose, repair, rebuild like professional mechanics.
Volvo Constructions ECR88 Compact Excavators 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.
PRODUCT DETAILS:
Total Pages: 1,843 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English
MAIN SECTIONS
0 - Foreword....2
0 - GENERAL....3
00 - DESCRIPTION; COMPLETE MACHINE....4
Machine view....4
Product plates....6
03 - SPECIFICATIONS....8
Air cleaner restriction switch, specifications....8
Air conditioning unit, specifications_{11-48-18}....9
Air conditioning unit, specifications_{11-48-42}....10
Air preheater, specifications ....11
Alternator, specifications ....12
Battery, specifications ....13
Boom, specifications ....14
Cab, specifications ....15
Check valve, specifications ....16
Coolant temperature sender for needle gauge, specifications ....17
Cooling system, specifications_{12-06-40}....19
Cooling system, specifications_{12-07-05}....20
Counterweight, specifications ....21
Cylinder, specifications ....22
Dipper arm, specifications ....24
Dozer blade, specifications ....25
Electric horn, specifications_{12-02-55}....26
Electric horn, specifications_{12-03-19}....27
Electrical system, specifications-[0605]....28
Engine oil pressure switch, specifications....29
Engine, specifications_{12-12-15}....30
Engine, specifications_{12-12-39}....31
Frame and track unit, specifications ....32
Fuel filler pump, specifications_{12-08-52}....33
Fuel filler pump, specifications_{12-09-17}....34
Fuel filler pump, specifications_{12-09-41}....35
Fuel injection pump, specifications-[0817]....36
Fuel level sender for needle gauge, specifications ....37
Fuel system, specifications-[1038]....39
Fuel tank, specifications-[1011]....40
Fuse box, specifications_{11-53-27}....41
Fuse box, specifications_{11-53-52}....43
Fuse box, specifications_{11-54-17}....45
Hydraulic oil cooling system, specifications_{11-44-34}....46
Hydraulic oil cooling system, specifications_{11-44-59}....47
Hydraulic oil tank, specifications ....48
Hydraulic pressure, specifications_{11-46-02}....49
Hydraulic pressure, specifications_{11-46-26}....50
Hydraulic pressure, specifications_{11-46-50}....51
Hydraulic pressure, specifications_{11-47-15}....52
Hydraulic pump, specifications ....53
Injectors, specification-[0735]....54
Instrument panel, specifications ....55
Line rupture valve (boom_arm), specifications ....56
Lubrication system, specifications-[1113]....57
MA9109 Quickfit solenoid valve, specifications ....58
Main control valve, specifications_{11-42-42}....60
Main control valve, specifications_{11-43-07}....62
Main control valve, specifications_{11-43-31}....64
Main control valve, specifications_{11-43-56}....66
Measurement conversion tables....68
Overload warning pressure switch, specifications_{11-37-04}....77
Overload warning pressure switch, specifications_{11-37-33}....78
Preheating relay, specifications_{12-00-24}....80
Preheating relay, specifications_{12-00-49}....81
Pressure accumulator, specifications ....82
Recommended hydraulic oil, specifications ....83
Relays, specification....86
Remote control valve (Lever), specifications ....87
Remote control valve (pedal), specifications ....88
Safety limit switch, specifications ....89
Safety start relay, specifications_{12-01-28}....90
Safety start relay, specifications_{12-01-52}....91
Slow blow fuse, specifications ....92
Solenoid valve for rotator ....93
Solenoid valve, specifications_{11-38-54}....95
Solenoid valve, specifications_{11-39-22}....97
Solenoid valve, specifications_{11-39-46}....99
Specification, filling capacities_{12-13-18}....100
Specification, filling capacities_{12-13-43}....101
Starter motor, specifications_{12-04-22}....102
Starter motor, specifications_{12-04-46}....103
Swing motor, specifications ....104
Swing ring gear, specifications ....105
Tightening torques....106
Track gearbox, specifications ....115
Track motor, specifications ....116
Travel alarm pressure switch, specifications....117
Travel alarm, specifications ....118
Undercarriage, tightening torque ....119
Valve system specifications-[1139]....120
Warning buzzer, specifications ....121
Wiper motor, specifications ....122
Work lights and extra lights, specifications ....123
07 - STANDARD TIME....124
Operation numbers for additional work....124
09 - MISCELLANEOUS....126
Service positions....126
1 - STANDARD PARTS, SERVICE....128
16 - LUBRICANT; FUEL; OTHER FLUID....129
Alternative fuels....129
Fuel....132
Recommended lubricants....134
Specification, filling capacities_{11-29-05}....137
Specification, filling capacities_{11-29-30}....138
17 - SERVICE....139
Air cleaner primary filter, change....139
Air cleaner primary filter, clean....141
Air cleaner secondary filter, change....143
Air conditioner main filter, change....145
Air conditioner main filter, clean....147
Arrival Inspection, according to Inspection Programme....149
Battery condition, check....150
Bearings....152
CE-marking, EMC-directive....156
Cab; door, covers, hinges, joints and locks, lubricate....158
Cautions during operation....159
Checklist after a fire or heat exposure....166
Cleaning prior to repair....167
Coasting left and right swing....171
Condition test and maintenance program....173
Coolant anti-freeze resistance, checking-[0456]....175
Coolant level, check....179
Coolant, change....180
Creeping of hydraulic cylinder....181
Cylinder speed....182
Decontamination....185
Delivery Inspection, according to Inspection Programme....186
Engine oil and filter, changing....187
Engine radiator and hydraulic oil cooler, check (clean when necessary)....190
Engine, oil level, check....192
Environmental handling for the future....193
Environmentally hazardous fluids....194
Environmentally safe handling....195
Fire prevention measures....197
Fuel filter extra (water separator element), check_drain....200
Fuel filter, change....202
Fuel injectors, inspect_clean and test_{11-05-39}....203
Fuel injectors, inspect_clean and test_{11-06-08}....208
Fuel tank sediment, drain....213
General precautions ....214
Health hazards with paint, plastics and rubber....218
Hoses and tubes....220
Hydraulic oil level, check....224
Hydraulic oil return filter, replacing....225
Hydraulic oil servo filter, change....227
Hydraulic oil suction strainer, clean....228
Hydraulic oil, changing....230
Hydraulic pressure, checking....232
Loose and loss of bolts, check....233
Lubrication, see lubrication chart....234
MATRIS, reading, export reading....235
Maintenance of Stored Machines, according to Inspection Programme....237
Maintenance service, daily....238
Maintenance service, every 1000 hours....239
Maintenance service, every 2000 hours....241
Maintenance service, every 250 hours....243
Maintenance service, every 4000 hours....244
Maintenance service, every 50 hours....246
Maintenance service, every 500 hours....247
Maintenance service, every 6000 hours....249
Measuring condition....251
Measuring of swing bearing clearance....252
Move and operate machine safely....255
Periodic maintenance-[2144]....257
Periodic maintenance....258
Preparations for work....259
Pressure testing....264
Replacement parts....268
Safety concerns everybody!....272
Safety rules when servicing....273
Safety when handling oils and fuel....276
Safety when servicing....277
Safety when using lifting equipment....281
Safety when working with air conditioning refrigerant....283
Safety when working with batteries....286
Safety when working with hydraulic systems....289
Service methods....290
Service....294
Starting engine with booster cables....296
Starting with booster batteries....298
Straight traveling performance....299
Swing bath grease, lubricate....301
Swing ring gear bearing, lubricate....302
Swing speed....304
Test-run and check....305
The machine, check for external damages, cracks and wear damages....306
Track gearbox oil level, check....307
Track motor gearbox, changing oil....308
Track running speed....310
Track shoe bolts, check....311
Track tension_condition, check....313
Travel Speed....315
VCADS Pro, logged errors, read off....317
Valve clearance, check_adjust....319
Warranty inspection 100 hours....320
Warranty inspection 1000 hours....322
Warranty inspection....324
Washer fluid level, check....326
Waste handling....328
Working in environmentally contaminated areas....329
2 - ENGINE WITH MOUNTING AND EQUIPMENT....330
20 - GENERAL....331
Component locations....331
Engine, description_{10-28-21}....333
Engine, description_{10-28-49}....337
Engine, identification....339
Engine, tightening torque....340
Maintenance standards_{10-24-06}....342
Maintenance standards_{10-24-31}....344
Periodic inspection and maintenance procedure....346
Precautions....350
Special tools....351
Troubleshooting chart....356
21 - ENGINE....362
Adjusting operation....362
Camshaft, description....372
Compression pressure inspection....374
Crankshaft, description....377
Cylinder block, description....379
Cylinder head, description....381
Engine characteristic curve_{10-20-45}....383
Engine characteristic curve_{10-21-13}....385
Engine mounting....387
Engine timing gear, description....389
Engine, specifications_{10-21-51}....391
Engine, specifications_{10-22-16}....392
Troubleshooting....393
Valve system specifications....396
Valves, adjusting....397
22 - LUBRICATING SYSTEM....404
Lubricating system, description_{10-11-00}....404
Lubricating system, description_{10-11-28}....407
Lubrication system, specifications....409
23 - FUEL SYSTEM....410
Cold start device, description_{10-00-10}....410
Cold start device, description_{10-00-38}....412
Fuel filler pump, description....414
Fuel filler pump, specifications_{10-06-00}....416
Fuel filler pump, specifications_{10-06-25}....417
Fuel filler pump, specifications_{10-06-49}....418
Fuel filters, replacing....419
Fuel injection pump, description_{10-01-44}....421
Fuel injection pump, specifications....423
Fuel injection pump_governor, description_{10-02-12}....424
Fuel lines, description....426
Fuel system, description_{10-09-16}....428
Fuel system, description_{10-09-45}....430
Fuel system, specifications....432
Fuel tank, description_{10-04-45}....433
Fuel tank, description_{10-05-14}....436
Fuel tank, specifications....438
Injectors, description....439
Injectors, specification....441
Stop solenoid, description....442
25 - INLET & EXHAUST SYSTEM....443
Exhaust Gas Recirculation (EGR), description....443
Exhaust system, description....445
Inlet system, description....447
Intake and exhaust system, description....448
26 - COOLING SYSTEM....450
Coolant anti-freeze resistance, checking....450
Coolant, changing....455
Cooling system, description_{09-55-20}....458
Cooling system, description_{09-55-48}....460
Cooling system, specifications_{09-54-14}....462
Cooling system, specifications_{09-54-38}....463
Fan belt and_or alternator belt, checking and adjusting tension....464
Radiator, description....466
Thermostat, checking....468
27 - ENGINE CONTROL....472
Engine control_{09-49-40}....472
Engine control_{09-50-08}....474
Engine speed control switch, description....475
3 - ELECTRICAL; WARNING; INFORMATION; INSTRUMENTS....477
30 - GENERAL....478
11 666 140 Multimeter....478
999 0014 Adapter cable....480
999 0062 Extension cable....481
999 8699 Multi-pin breaker box....483
Auxiliary start....485
Collection of basic data....487
Communication with data buses....490
Component descriptions....491
Component troubleshooting, checking component....495
Component troubleshooting, checking subsystem (circuit)....498
Component troubleshooting, checking wiring harness and input_output on ECU....501
Connecting special tools....504
E-ECU (MID128) Engine control unit, active measuring conditions....508
E-ECU (MID128) Engine control unit, passive measuring conditions....510
Electrical cables and connectors, checking....512
Electrical system, description....518
Electrical system, special instructions for servicing, action when working on machine....519
Electrical system, special instructions for servicing, electrical components, alternator and charging regulator....520
Electrical system, special instructions for servicing, electrical components, batteries....522
Electrical system, special instructions for servicing, electronic components....524
Electrical system, special instructions for servicing, general....525
Electrical system, specifications....527
Electronic control system, description....528
Error code information, general....530
Hour meter....533
I-ECU (MID140) Instrument control unit, active measuring conditions....534
I-ECU (MID140) Instrument control unit, passive measuring conditions....536
MA2504, description and measuring....538
MO2501, description and measuring....540
Measuring symbols, description....542
Measuring, general....546
PWM2301, description and measuring....548
PWM9123, description and measuring....550
PWM9124, description and measuring....552
RE2501, description and measuring....554
RE2701, description and measuring....556
RE3101, description and measuring....558
RE3301, description and measuring....560
RExxxx, Relays general, description and measuring....562
SE2203, description and measuring....564
SE2303, description and measuring....566
SE2307, description and measuring....568
SE2502, description and measuring....570
SE2606, description and measuring....572
SE2701, description and measuring....574
SW2701, description and measuring....576
SW9161, description and measuring....578
SW9162, description and measuring....580
Service connection and programming connection....582
Special tools for troubleshooting-[3045]....583
Special tools for troubleshooting....584
Troubleshooting strategy....586
Troubleshooting tools_{09-31-20}....589
Troubleshooting tools_{09-31-44}....591
Troubleshooting, general....592
V-ECU (MID187) Vehicle control unit, active measuring conditions....595
V-ECU (MID187) Vehicle control unit, passive measuring conditions....598
V-ECU function, auto return to idle_{09-36-42}....601
V-ECU function, auto return to idle_{09-37-07}....603
V-ECU function, boom offset_{09-37-49}....604
V-ECU function, boom offset_{09-38-13}....606
V-ECU function, fuel cutoff solenoid drive....607
V-ECU function, preheating....609
V-ECU function, proportional control....611
V-ECU function, quickfit_{09-40-57}....613
V-ECU function, quickfit_{09-41-21}....616
VCADS Pro service tool....617
31 - BATTERY....622
Battery, charging....622
Battery, description....623
Battery, specifications....624
32 - ALTERNATOR; CHARGE REGULATOR....625
Alternator, description....625
Alternator, inspection....627
Alternator, specifications....628
33 - STARTING SYSTEM....629
Air pre-heater, description....629
Air preheater, specifications....630
Engine start and stop circuit....631
Preheating relay, description....633
Preheating relay, specifications_{08-31-12}....634
Preheating relay, specifications_{08-31-36}....635
Preheating system, description....636
Preheating, description....637
Safety start relay, description_{08-36-46}....639
Safety start relay, description_{08-37-14}....642
Safety start relay, specifications_{08-35-40}....644
Safety start relay, specifications_{08-36-04}....645
Start switch, description....646
Starter motor, description....648
Starter motor, specifications_{08-33-53}....649
Starter motor, specifications_{08-34-17}....650
35 - LIGHTING....651
Work lights and extra lights, description....651
Work lights and extra lights, specifications....653
36 - OTHER ELECTRICAL EQUIPMENT....654
Connectors, configuration....654
Connectors, overview_{08-21-59}....665
Connectors, overview_{08-22-47}....679
Electric horn, description....691
Electric horn, specifications_{08-27-02}....692
Electric horn, specifications_{08-27-26}....693
Engine control unit E-ECU, function description....694
Engine control unit E-ECU, specifications....696
Instrument control unit I-ECU, functional description_{08-18-59}....697
Instrument control unit I-ECU, functional description_{08-19-30}....699
Instrument control unit I-ECU, specifications....700
Rotating beacon, description....701
Travel alarm, description....702
Travel alarm, specifications....704
Vehicle control unit V-ECU, functional description_{08-17-49}....705
Vehicle control unit V-ECU, functional description_{08-18-17}....707
Vehicle control unit V-ECU, specifications....708
Windscreen wiper, components location....710
Windscreen wiper, description....711
Wiper motor, description....712
Wiper motor, specifications....714
37 - CABLE; FUSE; RELAY....715
Battery disconnector switch, description_{07-40-32}....715
Battery disconnector switch, description_{07-41-00}....716
Battery disconnector switch, specifications_{07-39-26}....717
Battery disconnector switch, specifications_{07-39-50}....718
Component list Alternator, batteries, capacitors, electronic units, voltage outlet....719
Component list Control lights_warning lights....720
Component list, Heating coils....721
Component list, Miscellaneous....722
Component list, Solenoid valves....723
Component list, Switches....724
Component list, lights....726
Component list, motors....727
Component list, relays_{08-09-53}....728
Component list, relays_{08-10-17}....729
Component list, sensors....730
Components list....731
Control system diagram....736
Electrical symbols and designations....739
Explanation of wiring diagrams....741
Fuse box, description_{07-37-41}....745
Fuse box, description_{07-38-10}....748
Fuse box, description_{07-38-38}....750
Fuse box, specifications_{07-36-01}....751
Fuse box, specifications_{07-36-25}....753
Fuse box, specifications_{07-36-49}....755
Grounding points, frame connections....756
Positive feed....758
Relay and relay box, description_{07-32-24}....759
Relay and relay box, description_{07-32-52}....761
Relay and relay box, description_{07-33-20}....763
Relay and relay box, description_{07-33-47}....765
Relay and relay box, description_{07-34-15}....767
Relays, specification_{07-31-19}....769
Relays, specification_{07-31-42}....770
Slow blow fuse, description....771
Slow blow fuse, specifications....773
Wiring diagram SCH01....774
Wiring diagram SCH01_{08-05-35}....776
Wiring diagram SCH01_{08-06-03}....779
Wiring diagram SCH02....782
Wiring diagram SCH02_{08-04-25}....785
Wiring diagram SCH02_{08-04-52}....788
Wiring diagram SCH03_{08-01-29}....791
Wiring diagram SCH03_{08-01-58}....794
Wiring diagram SCH03_{08-02-40}....797
Wiring diagram SCH03_{08-03-09}....801
Wiring diagram SCH04....805
Wiring diagram SCH04_{08-00-18}....808
Wiring diagram SCH04_{08-00-46}....811
Wiring diagram SCH05....814
Wiring diagram SCH06....817
Wiring diagram SCH07_{07-55-55}....820
Wiring diagram SCH07_{07-56-24}....823
Wiring diagram SCH07_{07-57-06}....826
Wiring diagram SCH07_{07-57-34}....829
Wiring diagram SCH08....832
Wiring diagram SCH08_{07-54-43}....834
Wiring diagram SCH08_{07-55-11}....837
Wiring diagram SCH09_{07-52-51}....840
Wiring diagram SCH09_{07-53-20}....843
Wiring diagram SCH10....846
Wiring diagram SCH10_{07-50-38}....849
Wiring diagram SCH10_{07-51-06}....852
Wiring diagram SCH10_{07-51-34}....855
Wiring diagram SCH11_{07-49-27}....858
Wiring diagram SCH11_{07-49-55}....860
Wiring diagram SCH12_{07-48-18}....862
Wiring diagram SCH12_{07-48-46}....864
Wiring diagram SCH13_{07-47-05}....866
Wiring diagram SCH13_{07-47-36}....868
Wiring diagram SCH14_{07-45-51}....870
Wiring diagram SCH14_{07-46-23}....873
Wiring diagram SCH15_{07-44-39}....876
Wiring diagram SCH15_{07-45-07}....878
Wiring diagram SCH22....880
Wiring diagram SCH24....882
Wiring diagram SCH25....884
Wiring diagram....886
Wiring diagrams....887
38 - INSTRUMENT; SENSOR; WARNING & INFORMATION SYSTEM....888
Air cleaner restriction switch, description_{07-23-57}....888
Air cleaner restriction switch, specifications_{07-24-25}....889
Coolant temperature sender for needle gauge, description....890
Coolant temperature sender for needle gauge, specifications....891
Engine oil pressure switch, description_{07-25-07}....893
Engine oil pressure switch, specifications_{07-25-34}....895
Fuel level sender for needle gauge, description....896
Fuel level sender for needle gauge, specifications....897
Instrument panel, description....899
Instrument panel, electrical circuit....901
Instrument panel, operation....904
Instrument panel, specifications....905
Menu tree....906
Overload warning pressure switch, description....908
Overload warning pressure switch, specifications ....909
Safety limit switch, description....910
Safety limit switch, specifications....911
Service mode....912
Travel alarm pressure switch, description_{07-22-52}....918
Travel alarm pressure switch, specifications_{07-23-15}....920
Warning buzzer, description....921
Warning buzzer, specifications....922
Water temperature switch for indicator, description....923
39 - MISCELLANEOUS....924
Radio with tape player, description....924
W-ECU, MID142, changing non-programmed ECU....926
W-ECU, MID142, changing pre-programmed ECU....930
4 - POWER TRANSMISSION....934
40 - GENERAL....935
Power transmission, description....935
43 - GEARBOX....936
Function description....936
Swing gearbox, description....937
Swing unit, replacing....940
Track gearbox, assembly....947
Track gearbox, description....952
Track gearbox, disassembly....957
Track gearbox, maintenance standard....965
Track gearbox, precautions for operation....966
Track gearbox, specifications....969
Track gearbox, troubleshooting....970
44 - HYDROSTATIC DRIVE....972
Center passage, assembly....972
Center passage, description_{06-47-43}....978
Center passage, description_{06-48-11}....981
Center passage, disassembly....984
Center passage, maintenance standard_{06-46-34}....987
Center passage, maintenance standard_{06-47-01}....989
Center passage, tools....992
Center passage, troubleshooting....994
Check the static brake torque....995
Flexible coupling....997
Slew motor, troubleshooting....999
Swing motor relief valve, replacing....1001
Swing motor, description....1003
Swing motor, disassembly_assembly....1018
Swing motor, maintenance standard....1048
Swing motor, specifications....1049
Track motor relief valve, replacing....1050
Track motor, assembly....1052
Track motor, description....1066
Track motor, disassembly....1080
Track motor, operating checks....1093
Track motor, precautions for operation....1096
Track motor, specifications....1098
Track motor, tools....1099
Track motor, troubleshooting....1101
49 - MISCELLANEOUS....1105
Slew ring gear, installation....1105
Slew ring gear, removal....1107
Swing ring gear, description....1109
Swing ring gear, specifications....1112
7 - FRAME; SPRINGS; DAMPING; AXLE SUSPENSION; WHEEL_TRACK UNIT....1113
70 - GENERAL....1114
Frame and track unit, specifications....1114
Undercarriage, tightening torque....1115
71 - FRAME....1116
Counterweight, installing....1116
Counterweight, removing....1119
Counterweight, specifications....1122
Superstructure, installation....1123
Superstructure, removal....1125
Undercarriage, description....1127
77 - WHEELS; TRACKS; TYRE; HUB; DRUM....1129
Bottom roller, description_{06-16-34}....1129
Bottom roller, description_{06-17-01}....1130
Bottom roller, description_{06-17-29}....1131
Bottom roller, description_{06-17-57}....1133
Bottom roller, description_{06-18-24}....1135
Bottom roller, measurement of wear_{06-14-57}....1137
Bottom roller, measurement of wear_{06-15-24}....1140
Bottom roller, measurement of wear_{06-15-52}....1143
Bottom roller, removal and installation....1146
Idler, description....1148
Idler, installation....1149
Idler, measurement of wear....1151
Idler, removal....1154
Rubber pads_{06-24-27}....1156
Rubber shoe_pad usage....1158
Rubber track, installing....1160
Rubber track, removing....1162
Rubber tracks....1165
Rubber tracks_{06-23-32}....1167
Rubber tracks_{06-23-59}....1169
Selection of track shoes....1171
Spring package, disassembly....1173
Spring package, measurement of wear....1176
Sprocket, installation....1177
Sprocket, measurement of wear....1178
Sprocket, removal....1181
Tools & equipment....1182
Top roller, description_{06-21-12}....1187
Top roller, description_{06-21-40}....1188
Top roller, installation....1190
Top roller, measurement of wear_{06-20-03}....1191
Top roller, measurement of wear_{06-20-31}....1193
Top roller, removal....1195
Track chain, description....1196
Track chain, installation....1197
Track chain, measurement of wear....1199
Track chain, removal....1204
Track links, replacing....1206
Track shoe, replacing one....1210
Track, adjusting track sag....1212
Track, adjusting track sag_{06-30-05}....1213
Track, adjusting track sag_{06-30-33}....1215
8 - MACHINERY HOUSE; CAB; EXTERIOR TRIM PARTS ANYWHERE....1220
81 - CAB, NAKED; CANOPY....1221
Cab, installation....1221
Cab, removal....1223
Cab, specifications....1224
87 - AIR CONDITIONING UNIT....1225
Actuator, foot_face driver....1225
Air conditioning unit, description_{06-09-12}....1228
Air conditioning unit, description_{06-09-40}....1235
Air conditioning unit, maintenance....1238
Air conditioning unit, refrigerant check and recharging....1241
Air conditioning unit, specifications_{06-10-18}....1248
Air conditioning unit, specifications_{06-10-41}....1249
Air distribution, description....1250
Blower motor....1251
Coil resistor....1253
Compressor....1254
Condenser....1259
Drying filter....1261
Electrical circuit, air conditioner_heater_{05-58-56}....1264
Electrical circuit, air conditioner_heater_{05-59-23}....1267
Electrical circuit, air conditioner_heater_{05-59-51}....1270
Evaporator_{06-06-41}....1273
Evaporator_{06-07-09}....1274
Expansion valve....1276
Performance test, AC unit....1280
Receiver drier, changing....1286
Refrigerant hoses....1288
Thermostat....1290
Three point relay....1291
9 - HYDRAULIC SYSTEM; DIGGING_HANDLING_GRADING EQUIPMENT; MISCELLANEOUS....1292
90 - GENERAL....1293
Description, general....1293
General notes when working on hydraulic system....1294
Hydraulic components, storing and transporting....1297
Hydraulic oil, description....1301
Hydraulic oil, storage and handling....1305
Hydraulic pressure, specifications_{05-53-50}....1309
Hydraulic pressure, specifications_{05-54-13}....1310
Hydraulic pressure, specifications_{05-54-36}....1311
Hydraulic pressure, specifications_{05-54-59}....1312
Hydraulic system, cleanliness when handling hydraulic components....1313
Hydraulic system, description....1317
Hydraulic system, repair of hydraulic components in workshop....1318
Pressure adjustment and leaks checking....1323
Recommended hydraulic oil, specifications....1325
91 - WORKING HYDRAULIC; SERVO HYDRAULICS....1329
2 stage port relief valve, adjustment_{05-27-39}....1329
2 stage port relief valve, adjustment_{05-28-06}....1331
2 stage port relief valve, description_{05-29-17}....1333
2 stage port relief valve, description_{05-29-44}....1336
2 stage port relief valve, disassembly and assembly....1339
2-pump flow selector valve....1341
Accumulator, replacing....1343
Boom holding valve, description....1344
Boom holding valve, disassembly and assembly....1347
Checking and Adjusting procedure....1350
Control pattern selector valve, description....1353
Control pattern selector valve, hydraulic circuits....1358
Control pattern selector valve, mode setting method....1363
Control pattern selector valve, ports....1365
Examples, hydraulic system....1367
Examples, power transmission....1377
Flow control valve, description....1386
Flow control valve, disassembly and assembly....1388
General precautions....1390
Hydraulic components, description....1394
Hydraulic diagram, X1 line....1396
Hydraulic diagram, schematic....1401
Hydraulic lines, digging unit piping....1404
Hydraulic lines, main control valve piping....1406
Hydraulic lines, pump and solenoid valve piping....1408
Hydraulic lines, remote control valve (lever) piping....1411
Hydraulic lines, remote control valve (pedal) piping....1414
Hydraulic lines, return piping....1417
Hydraulic lines, slew & track piping....1419
Hydraulic lines, suction & delivery piping....1421
Hydraulic lines, track piping....1423
Hydraulic oil cooling system, specifications_{05-43-05}....1425
Hydraulic oil cooling system, specifications_{05-43-28}....1426
Hydraulic oil tank, description....1427
Hydraulic oil tank, specifications....1430
Hydraulic pressure, measuring and adjustment....1431
Hydraulic pump, flow control....1433
Hydraulic pump, maintenance standard, Specifications....1437
Hydraulic pump, specifications....1439
Hydraulic system, work instructions....1440
Line rupture valve (arm), troubleshooting....1445
Line rupture valve (boom), troubleshooting....1447
Line rupture valve (boom_arm), description....1449
Line rupture valve (boom_arm), hydraulic circuit....1456
Line rupture valve (boom_arm), specifications....1458
Line rupture valve relief pressure, adjustment....1459
Load check valve, disassembly and assembly....1460
Load sensing check valve, disassembly and assembly....1461
Main control valve, description_{05-39-53}....1463
Main control valve, description_{05-40-27}....1473
Main control valve, specifications_{05-41-07}....1487
Main control valve, specifications_{05-41-30}....1489
Main control valve, specifications_{05-41-54}....1491
Main control valve, specifications_{05-42-17}....1493
Main relief valve, description....1495
Main relief valve, disassembly and assembly....1497
Main spool, description....1501
Main spool, disassembly and assembly....1503
Oil level gauge, replacing....1507
Overload warning device, operation....1509
Overload warning pressure switch, specifications....1511
Port relief valve pressure, measuring and adjusting....1513
Port relief valve, description....1520
Port relief valve, disassembly and assembly....1523
Pressure accumulator, description....1525
Pressure accumulator, specifications....1528
Pressure compensation valve, description....1529
Pressure compensation valve, disassembly and assembly....1531
Pressure relief valve, troubleshooting....1533
Proportional solenoid valve, description....1534
Pump, adjustment....1535
Pump, assembly....1538
Pump, description....1557
Pump, disassembly....1569
Pump, tools....1580
Pump, troubleshooting....1583
Regeneration valve, description....1585
Regeneration valve, disassembly and assembly....1587
Remote control valve (Lever), description....1588
Remote control valve (Lever), maintenance standard, Specifications....1596
Remote control valve (Lever), removal_installation....1598
Remote control valve (Lever), repair procedures....1599
Remote control valve (Lever), specifications....1606
Remote control valve (Lever), troubleshooting....1607
Remote control valve (pedal), assembling....1609
Remote control valve (pedal), description....1619
Remote control valve (pedal), disassembling....1625
Remote control valve (pedal), maintenance standard, Specifications....1635
Remote control valve (pedal), specifications....1637
Remote control valve (pedal), troubleshooting....1638
Rotator (X3 Line option), description....1640
Rotator (X3 Line option), hydraulic circuits and principle of operation....1644
Servo hydraulic pressure, adjustment....1647
Servo pump, replacing....1650
Servo pump, specifications....1652
Shim adjustment method....1653
Slew flow control valve, description....1654
Slew flow control valve, disassembly and assembly....1655
Solenoid valve for rotator....1656
Solenoid valve, description....1658
Solenoid valve, disassembly and assembly....1660
Solenoid valve, inspection....1662
Solenoid valve, replacing....1663
Solenoid valve, specifications....1665
Solenoid valve, specifications_{04-59-14}....1666
Solenoid valve, specifications_{04-59-38}....1668
Solenoid valve, troubleshooting....1670
Standard of the setting pressure....1672
Stop valve....1674
Troubleshooting, diagnosing procedure....1677
X1 Line, description....1682
92 - MECHANICAL EQUIPMENT_ATTACHMENT....1686
Attachment quick coupler solenoid valve, description_{04-48-54}....1686
Attachment quick coupler, description....1688
Attachment quick coupler, operation....1691
Attachment quick coupler, replacing....1698
Blade lift cylinder, installing....1703
Blade lift cylinder, removing....1705
Check valve, replacing....1708
Check valve, specifications....1712
Dozer blade, description....1713
Dozer blade, specifications....1714
MA9109 Quickfit solenoid valve, description_{04-49-20}....1715
MA9109 Quickfit solenoid valve, specifications....1717
Remote control valve (dozer blade), description....1719
97 - UNIT, DIGGING....1721
Boom cylinder, installing....1721
Boom cylinder, removing....1724
Boom cylinder, replacing....1727
Boom, specifications....1731
Bushing general, replacing....1732
Cylinder, assembly....1737
Cylinder, description....1751
Cylinder, disassembly....1753
Cylinder, inspection and maintenance standard....1760
Cylinder, removal and installation....1763
Cylinder, specifications....1770
Cylinder, tools....1772
Cylinder, troubleshooting....1778
Digging unit, description....1780
Digging unit, maintenance standard, specifications....1784
Dipper arm, specifications....1786
99 - MISCELLANEOUS....1787
Explanations to hydraulic diagram....1787
Hydraulic circuits, arm....1798
Hydraulic circuits, boom lower....1800
Hydraulic circuits, boom raise....1802
Hydraulic circuits, boom slew (switch operated)....1804
Hydraulic circuits, bucket....1806
Hydraulic circuits, dozer blade....1808
Hydraulic circuits, neutral_{04-33-43}....1810
Hydraulic circuits, neutral_{04-34-05}....1811
Hydraulic circuits, ports....1812
Hydraulic circuits, slew....1814
Hydraulic circuits, standard_{04-32-19}....1816
Hydraulic circuits, standard_{04-32-43}....1821
Hydraulic circuits, travel (low _ auto shift)....1824
Hydraulic circuits, with option components_{04-31-10}....1827
Hydraulic circuits, with option components_{04-31-38}....1830
Hydraulic diagram 3 - Explanations to hydraulic diagram....1835
Hydraulic diagram 3 - Image....1838
Hydraulic diagram 3....1839
Hydraulic diagram 4 - Explanations to hydraulic diagram....1840
Hydraulic diagram 4 - Image....1841
Hydraulic diagram 4....1842
