Caterpillar Backhoe Loaders 428, 432, 434, and 444 Repair Service Manual
Complete service repair manual with Electrical Wiring Diagrams for Caterpillar Backhoe Loaders 428, 432, 434, and 444, with all the technical information to maintain, diagnose, repair, and rebuild like professional mechanics.
Caterpillar Backhoe Loaders 428, 432, 434, and 444 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.
428 BACKHOE LOADER 6TC
428 BACKHOE LOADER H7D
428 BACKHOE LOADER L7D
432 BACKHOE LOADER H7E
432 BACKHOE LOADER L7E
434 BACKHOE LOADER H7K
434 BACKHOE LOADER L7K
444 BACKHOE LOADER H7M
444 BACKHOE LOADER L7M
PRODUCT DETAILS:
Total Pages: 1,643 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English
M0116307 - Schematic (432 & 444 Backhoe Loader Hydraulic System (Electrohydraulic Controls) (Function Isolation); (H7M1-UP L7M1-UP H7E1-UP L7E1-UP).pdf
M0113197 - Specifications, Systems Operation, Testing and Adjusting (416; 420; 420XE; 428; 430; 432; 434 and 444 Backhoe Loaders Transmission (Autoshift).pdf
M0113195 - Specifications; Systems Operation; Testing and Adjusting (416; 420; 420XE; 428; 430; 432; 434 and 444 Backhoe Loaders Transmission.pdf
M0111872 - Disassembly and Assembly (428; 432; 434; and 444 (Side-Shift) Backhoe Loader Machine Systems).pdf
M0110934 - Specifications (428; 432 and 434; and 444 Backhoe Loader Axles; Differentials; and Brakes).pdf
M0110933 - Specifications (428; 432 and 434; and 444 Backhoe Loader Hydraulic and Steering System).pdf
M0110929 - Systems Operation; Testing and Adjusting; Troubleshooting (416; 420; 428; 430; 432; 434 and 444 Backhoe Loaders).pdf
M0110880 - Systems Operation; Testing and Adjusting (428; 432; 434; and 444 Backhoe Loaders Axles; Differentials and Brakes).pdf
M0110876 - Systems Operation; Testing and Adjusting (428; 432; 434; and 444 Backhoe Loaders Hydraulic and Steering System).pdf
M0110849 - Schematic (415; 416; 420; 420 XE; 428; 430; 432; 434; and 444 Backhoe Loader Electrical System with Autoshift Transmission; Electrohydraulic Loader Controls and Pilot Operated Backhoe Controls; 529-7061).pdf
M0109880 - Disassembly and Assembly (415; 416; 420; 430; 432; 434; and 444 Backhoe Loader Engine Supplement).pdf
TABLE OF CONTENTS
M0109880 - Disassembly and Assembly (415; 416; 420; 430; 432; 434; and 444 Backhoe Loader Engine Supplement)......1
System Pressure - Release......2
Hood - Remove and Install......3
Side Panel - Remove and Install......5
Diesel Particulate Filter - Remove and Install......7
Battery - Remove and Install......14
Electric Starting Motor - Remove and Install......17
Refrigerant Compressor - Remove and Install......19
Alternator - Remove and Install......22
Fan - Remove and Install......24
Fan Drive - Remove and Install......28
Water Pump - Remove and Install......31
Water Temperature Regulator - Remove and Install......34
Radiator; Fuel Cooler; After Cooler; and Hydraulic and XMSN Oil Cooler - Remove and Install......36
Refrigerant Condenser - Remove and Install......42
Hydraulic and Transmission Oil Cooler - Remove and Install......45
Turbocharger - Remove and Install......50
Diesel Exhaust Fluid Filter - Remove and Install......56
Diesel Exhaust Fluid Pump - Remove and Install......58
Diesel Exhaust Fluid Injector - Remove and Install......66
Catalyst (SCR) - Remove and Install......71
Nitrogen Oxide Sensor (Exhaust Outlet) - Remove and Install......78
Electronic Control Module (ECM) - Remove and Install......81
Fuel Filter and Water Separator - Remove and Install......84
Air Cleaner - Remove and Install......86
Engine - Remove......89
Engine - Install......103
Coolant Tank (Expansion) - Remove and Install......117
M0110849 - Schematic (415; 416; 420; 420 XE; 428; 430; 432; 434; and 444 Backhoe Loader Electrical System with Autoshift Transmission; Electrohydraulic Loader Controls and Pilot Operated Backhoe Controls; 529-7061)......119
M0110876 - Systems Operation; Testing and Adjusting (428; 432; 434; and 444 Backhoe Loaders Hydraulic and Steering System)......125
General Information (Hydraulic System)......127
Hydraulic Tank and Filter......137
Piston Pump (Work Tool and Steering)......139
Priority Valve - Inlet Manifold of the Loader......148
Load Control Valve (Lift) - If Equipped......151
Load Control Valve (Boom or Stick) - If Equipped......156
Bank Valve (Loader) - Electro-Hydraulic (EH) Operated......165
Control Valve (Lift) - Mechanically Operated......169
Control Valve (Lift) - Electro-Hydraulic (EH) Operated......174
Control Valve (Tilt) - Mechanically Operated......179
Control Valve (Tilt) - Electro-Hydraulic (EH) Operated......184
Control Valve (Auxiliary)(Loader) - Electro-Hydraulic (EH) Operated......188
Bank Valve (Backhoe) - Pilot Operated......192
Control Valve (Auxiliary)(Backhoe) - Electro-Hydraulic (EH) Operated (If Equipped)......196
Control Valve (Extendable Stick) - Electro-Hydraulic (EH) Operated......200
Control Valve (Stick) - Pilot Operated......204
Control Valve (Bucket) - Pilot Operated......208
Control Valve (Swing) - Pilot Operated......212
Crossover Relief Valve (Swing Cushion) - If Equipped......216
Control Valve (Boom) - Pilot Operated......218
Control Valve (Stabilizer) - Electro-Hydraulic (EH) Operated......222
Ride Control System......226
Hydraulic System Lockout......229
Sideshift Slide Lock Circuit - If Equipped......232
General Information (Steering)......237
System Pressure - Release......242
Hydraulic Oil Contamination - Test......244
Hydraulic Pump - Test and Adjust......247
Relief Valve (Line) - Test and Adjust......253
Pilot System Pressure - Test......266
Ride Control - Test......270
Ride Control Accumulator - Test and Charge......272
Cylinder Speed - Check......274
Cylinder Drift - Check......279
Worksheets - Troubleshoot......283
M0110880 - Systems Operation; Testing and Adjusting (428; 432; 434; and 444 Backhoe Loaders Axles; Differentials and Brakes)......286
Drive and Steering Axle (Front)......287
Axle (Rear)......290
Parking Brake Control......294
Service Brake Control......297
Differential (Standard)......300
Differential Lock......302
Brake System Air - Purge......306
Drive and Steering Axle (Front) - Adjust......311
Parking Brake Control - Adjust......318
Service Brake Control - Adjust......320
M0110929 - Systems Operation; Testing and Adjusting; Troubleshooting (416; 420; 428; 430; 432; 434 and 444 Backhoe Loaders)......328
General Information......330
Features......336
Electrical Input Components......352
Electrical Output Components......387
Anti-Theft System Configuration......406
Calibration......410
Electronic Control Module (ECM) - Flash Program......420
Electronic Control Module (ECM) - Configure......422
Electronic Control Module (ECM) - Replace......426
Connector Contact Description......428
System Schematic......442
General Information ......445
Service Tools......447
Connector Locations......450
Diagnostic Capabilities......451
Operational Checks (All Wheel Steer)......465
Operational Checks (Axle; Differential)......468
Operational Checks (Brake System)......470
Operational Checks (Hydraulic System)......472
Operational Checks (Transmission)......473
Operational Checks (Steering System)......475
Determining Diagnostic Trouble Codes......476
Diagnostic Trouble Codes......479
Event Codes......495
Symptom Troubleshooting......502
Axle and Differential......504
Brake System......508
Hydraulic System......511
Steering System......519
Transmission......523
Anti-Theft Keypad - Test......529
Charging System - Test......541
Electrical Connector - Inspect......542
Electrical Power Supply - Test......549
Operator Control Switch (Switch to Battery) - Test......556
Operator Control Switch (Switch to Ground) - Test......564
Parameter - Test......574
Position Sensor (Proximity Switch) - Test......578
Sensor (Multi-Signal; Analog; Active) - Test......585
Sensor Signal (Analog; Passive) - Test......592
Sensor Signal (PWM) - Test......599
Sensor Supply - Test......617
Solenoid Valve - Test......625
Solenoid Valve (Switch Controlled) - Test......641
Wiring Harness (Open Circuit) - Test......647
Wiring Harness (Short Circuit) - Test......648
M0110933 - Specifications (428; 432 and 434; and 444 Backhoe Loader Hydraulic and Steering System)......649
Quick Coupler Lock......652
Cab Door - RH......655
Cab Door - LH......657
Cab Window - RH......659
Cab Window - LH......663
Cab Window......667
Hood - Guard......669
Window Wiper and Wiper Motor......672
Fender - Rear......674
Engine Hood......676
Cab Trim......678
Cab Trim - Roof......680
Fuel Tank......681
Steering Cylinder......683
Steering Control Group......684
Ride Control Lines......685
Ride Control Manifold......686
Ride Control Accumulator......688
Transport Lock......692
Lift Arm......696
Loader Frame......699
Extendable Stick Cylinder......701
Stick Cylinder......703
Stick - 4.3 m (14.00 ft)......707
Stick - 4.9 m (16.00 ft)......711
Stick......713
Bucket......715
Bucket Linkage......717
Bucket Cylinder Lines......725
Bucket Cylinder (Backhoe)......727
Swing Frame......729
Swing Cylinder......733
Boom......735
Boom Cylinder......739
Sliding Frame......743
Stabilizer Cylinder......745
Quick Coupler......747
Pin Coupler Cylinder - Loader......749
Pin Coupler Cylinder - Backhoe......750
Coupler Lines......751
Multipurpose Bucket Cylinder......754
Tilt Cylinder......756
Lift Cylinder Brace......758
Lift Cylinder......760
Lines (Lift Cylinder) - Parallel Lift......762
Control Valve (Tilt) - Electrohydraulic Control......764
Control Valve (Stabilizer) - Electrohydraulic Control......766
Control Valve (Boom)(Pilot Operated)......767
Control Valve (Swing)(Pilot Operated)......769
Control Valve (Backhoe Bucket) (Pilot Operated)......771
Control Valve (Stick)(Pilot Operated)......773
Bank Valve (Eight) (Side Shift)......775
Bank Valve (Seven) (Pilot Operated)......777
Relief Valve......779
Lines (Hydraulic) - Lift and Tilt......780
Lines (Hydraulic) - Lift and Tilt Cylinder......782
Lines (Hydraulic) - Return......784
Lines (Hydraulic)......786
Control Valve (Loader Auxiliary) (Electrohydraulically Operated)......788
Control Valve (Auxiliary) (Electrohydraulically Operated)......790
Steering Stop......792
Bank Valve (Three) (Electrohydraulic Control)......794
Solenoid Valve (Quick Coupler)......796
Control Valve - Coupler......797
Control Valve - Inlet......798
Control Valve - (Outlet) (Electrohydraulic_Pilot Operated)......799
Control Valve - Extendable Stick......800
Control Valve - Fork......801
Control Valve (Lift) (Electrohydraulically Operated)......803
Hydraulic Accumulator (Pilot Oil)......805
Joystick Control......806
Crossover Relief Valve (Swing Cushion)......808
Metering Pump (Steering)......809
Solenoid Valve......810
Pump Control Valve (Pressure and Flow Compensator)......813
Piston Pump......814
Oil Filter (Hydraulic)......816
Backhoe Control Mounting......819
Hydraulic Hand Control......821
Hydraulic Tank and Mounting......822
Radiator and Hydraulic Oil Cooler......824
Heater and Air Conditioner Lines......826
Refrigerant Compressor......830
Refrigerant Condenser and Mounting......832
Suction Fan......833
Auxiliary Hydraulic Lines......835
M0110934 - Specifications (428; 432 and 434; and 444 Backhoe Loader Axles; Differentials; and Brakes)......836
Axle Mounting......837
Drive and Steering Axle (Front)......839
Wheel and Tire (Front)......847
Axle (Rear)......850
Wheel and Tire (Rear) Wheel and Tire (Rear)......862
Drive Shaft......863
Differential Lock Lines......868
Parking Brake Control......870
Service Brake Control......871
M0111872 - Disassembly and Assembly (428; 432; 434; and 444 (Side-Shift) Backhoe Loader Machine Systems)......873
Bucket Positioner Control - Remove and Install - Parallel Lift......876
System Pressure - Release......878
Bucket - Remove and Install......879
Tilt Cylinder - Remove and Install - Parallel Lift......884
Lift Cylinder - Remove and Install - Parallel Lift......889
Lift Arms - Remove and Install - Parallel Lift......894
Hoe Bucket - Remove and Install......900
Quick Coupler - Remove and Install - Parallel Lift......901
Backhoe Bucket Linkage - Remove and Install......903
Backhoe Bucket Cylinder - Remove and Install......905
Backhoe Bucket Cylinder - Disassemble......908
Backhoe Bucket Cylinder - Assemble......912
Stick Cylinder - Remove and Install......918
Stick Cylinder - Disassemble......926
Stick Cylinder - Assemble......930
Stick - Remove and Install......936
Extendable Stick Cylinder - Remove and Install......941
Extendable Stick Cylinder - Disassemble......944
Extendable Stick Cylinder - Assemble......948
Extendable Stick - Remove and Install......954
Boom Cylinder - Remove and Install......957
Boom Cylinder - Disassemble......964
Boom Cylinder - Assemble......970
Boom - Remove and Install......977
Swing Cylinder - Remove and Install......982
Swing Cylinder - Disassemble......986
Swing Cylinder - Assemble......993
Swing Frame - Remove......1001
Swing Frame - Install......1004
Sliding Frame and Bearing - Remove......1007
Sliding Frame and Bearing - Install......1014
Stabilizer Cylinder - Remove and Install......1021
Stabilizer Cylinder - Disassemble......1024
Stabilizer Cylinder - Assemble......1028
Stabilizer - Remove and Install......1034
Service Brake Control - Remove and Install......1039
Bank Valve (Backhoe) - Remove - Mechanical......1044
Bank Valve (Backhoe) - Remove - Joystick Control......1059
Bank Valve (Backhoe) - Remove - Electro hydraulic......1077
Bank Valve (Backhoe) - Disassemble - Electro hydraulic......1089
Bank Valve (Backhoe) - Assemble - Electro hydraulic......1159
Bank Valve (Backhoe) - Install - Mechanical......1228
Bank Valve (Backhoe) - Install - Joystick Control......1242
Bank Valve (Backhoe) - Install - Electro hydraulic......1258
Bank Valve (Loader) - Remove - Electro hydraulic Control......1269
Bank Valve (Loader) - Remove - Mechanical Controls......1272
Bank Valve (Loader) - Disassemble - Electro hydraulic Controls......1277
Bank Valve (Loader) - Assemble - Electro hydraulic Controls......1297
Bank Valve (Loader) - Install - Electro hydraulic Controls......1317
Bank Valve (Loader) - Install - Mechanical Controls......1319
Piston Pump (Main Hydraulic) - Remove and Install......1324
Hydraulic Tank - Remove and Install......1329
Steering Metering Pump - Remove and Install......1334
Steering Wheel - Remove and Install......1340
Window Wiper and Wiper Motor (Front) - Remove and Install......1342
Window Wiper and Wiper Motor (Rear) - Remove and Install......1350
Cab - Remove - Optional Canopy......1353
Cab - Install - Optional Canopy......1383
Refrigerant Accumulator - Remove and Install......1413
Ride Control Accumulator - Remove and Install......1415
Seat - Remove and Install......1417
Air Conditioner and Heater - Remove and Install......1424
Fuel Tank - Remove and Install......1433
Counterweight - Remove and Install......1437
M0113195 - Specifications; Systems Operation; Testing and Adjusting (416; 420; 420XE; 428; 430; 432; 434 and 444 Backhoe Loaders Transmission......1439
Torque Converter......1440
Transmission (Power Shift)......1444
Flexible Coupling Drive......1448
Transmission Oil Pump......1450
Pump Lines......1453
Steering Lines......1455
Transmission Case......1457
Transmission......1471
Transmission Control......1498
Transmission Hydraulic System......1520
Machine Preparation for Troubleshooting......1526
Operational Checks......1527
Visual Inspection......1528
Power Train Troubleshooting......1530
Pressure Taps - Powershift......1534
Transmission and Torque Converter - Test......1536
M0113197 - Specifications, Systems Operation, Testing and Adjusting (416; 420; 420XE; 428; 430; 432; 434 and 444 Backhoe Loaders Transmission (Autoshift)......1546
Torque Converter......1547
Transmission (Autoshift)......1551
Flexible Coupling Drive......1559
Transmission Oil Pump......1561
Pump Lines......1564
Transmission Control......1566
Steering Lines......1570
Transmission Case......1572
Transmission......1586
Transmission Control ......1618
Transmission Hydraulic System......1639
Machine Preparation for Troubleshooting......1645
Operational Checks......1646
Visual Inspection......1647
Power Train Troubleshooting......1649
Pressure Taps - Autoshift......1653
Transmission and Torque Converter - Test......1656
M0116307 - Schematic (432 & 444 Backhoe Loader Hydraulic System (Electrohydraulic Controls) (Function Isolation); (H7M1-UP L7M1-UP H7E1-UP L7E1-UP)......1666
Features......1666
Cover Page......1668
Information......0
Component Location......1669
Tap Location......1670
Schematic......1671
Machine Views......0
Extendable Stick......1672
Machine Front View......1673
Machine Left Side View......1677
Machine Rear View......1674
Machine Right Side View......1675
Machine Top View......1676
Quick Coupler......1678
Wheel Steering......1679
Caterpillar Backhoe Loaders 428, 432, 434, and 444 Repair Service Manual
