Caterpillar 422F2, 427F2, 428F2, 432F2 and 434F2 Backhoe Loaders Repair Service Manual
Complete service repair manual with Electrical Wiring Diagrams for Caterpillar 422F2, 427F2, 428F2, 432F2 and 434F2 Backhoe Loaders, with all the technical information to maintain, diagnose, repair, and rebuild like professional mechanics.
Caterpillar 422F2, 427F2, 428F2, 432F2 and 434F2 Backhoe Loaders 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.
422F2 BACKHOE LOADER LYF
427F2 BACKHOE LOADER HWK
428F2 BACKHOE LOADER HWN
428F2 BACKHOE LOADER LYG
432F2 BACKHOE LOADER HWP
432F2 BACKHOE LOADER LYJ
434F2 BACKHOE LOADER HWR
434F2 BACKHOE LOADER LYK
444F2 BACKHOE LOADER HWS
444F2 BACKHOE LOADER LYL
UENR3742 - Specifications (422F2; 427F2; 428F2; 432F2 and 434F2 Backhoe Loaders Transmission (Standard Shift)).pdf
UENR3742 - Systems Operation (422F2; 427F2; 428F2; 432F2 and 434F2 Backhoe Loaders Transmission (Standard Shift)).pdf
UENR3742 - Testing and Adjusting (422F2; 427F2; 428F2; 432F2 and 434F2 Backhoe Loaders Transmission (Standard Shift)).pdf
UENR3743 - Disassembly and Assembly (422F2; 427F2; 428F2; 432F2; 434F2 and 444F2 Backhoe Loaders Powertrain).pdf
UENR3744 - Specifications (422F2; 426F2; 427F2; 428F2; 432F2; 434F2 and 444F2 Backhoe Loaders Axles; Differential and Brakes).pdf
UENR3745 - Systems Operation & Testing and Adjusting (422F2; 426F2; 427F2; 428F2; 432F2; 434F2 and 444F2 Backhoe Loaders Axles; Differential and Brakes).pdf
UENR3746 - Specifications (422F2; 427F2; 428F2; 432F2; 434F2 and 444F2 Backhoe Loaders Hydraulic and Steering System).pdf
UENR3747 - Systems Operation (422F2; 427F2; 426F2; 428F2; 432F2; 434F2 and 444F2 Backhoe Loaders Hydraulic and Steering System).pdf
UENR3747 - Testing and Adjusting (422F2; 427F2; 426F2; 428F2; 432F2; 434F2 and 444F2 Backhoe Loaders Hydraulic and Steering System).pdf
UENR3749 - Disassembly and Assembly (422F2; 427F2; 428F2; 432F2; 434F2 and 444F2 Backhoe Loaders Machine Systems).pdf
UENR3750 - Schematic (416F2; 422F2; 428F2 and 434F2 Backhoe Loader Electrical System; Cab; Engine and Chassis (LYA1-374 LYK1-327 LYG1-1811 LYF1-801 LBF1-2291).pdf
UENR5026 - Disassembly and Assembly (415F2; 416F2; 420F2 IT; 420F2 ST; 430F2 IT and 430F2 ST Backhoe Loaders Machine Systems).pdf
UENR5153 - Schematic (416F2; 422F2; 428F2 and 434F2 Backhoe Loader Electrical System; Cab Wiring; Engine & Chassis Wiring (LYF802-UP LYG1812-UP LYK328-UP LBF2292-UP LYA375-UP).pdf
UENR5153 - Schematic (422F2; 427F2; 428F2 and 434F2 Backhoe Loader Hydraulic System).pdf
UENR6152 - Disassembly and Assembly (416F2; 420F2 IT; 420F2 ST; 422F2; 428F2; 430F2 IT; 430F2 ST; 432F2; 434F2 and 444F2 Backhoe Loaders Engine Supplement).pdf
PRODUCT DETAILS:
Total Pages: 1,362 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English
TABLE OF CONTENTS
UENR3742 - Specifications (422F2; 427F2; 428F2; 432F2 and 434F2 Backhoe Loaders Transmission (Standard Shift)).....1
Transmission (Standard Shift).....2
Power Train Oil Filler.....4
Flexible Coupling Drive.....6
Pump Drive - Mounting.....9
Pump Lines.....11
Governor Control.....13
Transmission Control.....15
Transmission Oil Pump.....19
Steering Lines.....20
Transmission Case.....22
UENR3742 - Systems Operation (422F2; 427F2; 428F2; 432F2 and 434F2 Backhoe Loaders Transmission (Standard Shift)).....31
General Information.....32
Torque Converter.....33
Transmission (Two-Wheel Drive).....36
Transmission (All-Wheel Drive).....56
Transmission Control.....61
Transmission Hydraulic System.....70
UENR3742 - Testing and Adjusting (422F2; 427F2; 428F2; 432F2 and 434F2 Backhoe Loaders Transmission (Standard Shift)).....73
Power Train Troubleshooting.....74
Pressure Taps - Standard Shift.....79
Transmission and Torque Converter - Test.....81
UENR3743 - Disassembly and Assembly (422F2; 427F2; 428F2; 432F2; 434F2 and 444F2 Backhoe Loaders Powertrain).....93
Axle Housing (Service Brakes; Differential and Bevel Gear) - Disassemble.....95
System Pressure - Release.....108
Solenoid Valve (Transmission) - Remove and Install.....109
Transmission (Direct Drive) - Remove.....111
Transmission (Direct Drive) - Disassemble.....119
Transmission (Direct Drive) - Assemble.....151
Transmission (Direct Drive) - Install.....187
Transmission (Power Shift) - Remove.....195
Transmission (Power Shift) - Disassemble.....201
Transmission (Power Shift) - Assemble.....276
Transmission (Power Shift) - Install.....314
Drive Shaft (Front) - Remove and Install.....320
Drive Shaft (Rear) - Remove and Install.....322
Parking Brake - Remove and Install.....324
Tie Rod (Steering)(Front) - Remove and Install.....329
Final Drive Planetary - Remove and Install - Front.....332
Final Drive Planetary - Remove and Install - Rear.....334
Axle Housing and Flange - Remove.....337
Axle Housing and Flange - Disassemble.....346
Axle Housing and Flange - Assemble.....351
Axle Housing and Flange - Install.....357
Axle Housing (Differential and Bevel Gear) (Front) - Remove and Install.....366
Axle Shaft - Remove and Install.....368
Axle Housing (Differential and Bevel Gear) (Front) - Disassemble.....371
Axle Housing (Differential and Bevel Gear) (Front) - Assemble.....388
Drive and Steering Axle (Front) - Remove.....408
Drive and Steering Axle (Front) - Install.....413
Steering Cylinder (Front) - Remove and Install.....418
Steering Cylinder (Rear) - Remove and Install.....422
Rear Axle - Remove.....429
Rear Axle - Install.....433
Axle Housing; Axle Shaft; and Wheel Flange - Remove - AWS Axle.....437
Axle Housing; Axle Shaft; and Wheel Flange - Remove - 2WS Axle.....440
Axle Housing; Axle Shaft; and Wheel Flange - Disassemble.....443
Axle Housing; Axle Shaft; and Wheel Flange - Assemble.....452
Axle Housing; Axle Shaft; and Wheel Flange - Install - 2WS Axle.....463
Axle Housing; Axle Shaft; and Wheel Flange - Install - AWS Axle.....465
Axle Housing (Service Brakes; Differential and Bevel Gear) - Assemble.....468
Tire and Rim (Front) - Remove and Install.....491
Tire and Rim (Rear) - Remove and Install.....494
UENR3744 - Specifications (422F2; 426F2; 427F2; 428F2; 432F2; 434F2 and 444F2 Backhoe Loaders Axles; Differential and Brakes).....497
Axle (Front) - Two-Wheel Drive.....498
Axle (Front).....500
Wheel and Tire (Front).....505
Axle (Rear).....509
Wheel and Tire (Rear) Wheel and Tire (Rear).....516
Drive Shaft.....519
Parking Brake Control.....521
Service Brake Control.....523
UENR3745 - Systems Operation & Testing and Adjusting (422F2; 426F2; 427F2; 428F2; 432F2; 434F2 and 444F2 Backhoe Loaders Axles; Differential and Brakes).....526
Axle (Front).....527
Drive and Steering Axle (Front).....530
Axle (Rear).....533
Parking Brake Control.....537
Service Brake Control.....540
Differential (Standard).....544
Differential Lock - If Equipped.....547
Axle (Front) - Adjust.....552
Brake System Air - Purge.....560
Drive and Steering Axle (Front) - Adjust.....565
Differential Pinion Bearing - Adjust.....573
Differential Backlash and Bearings - Adjust.....579
Axle Housing and Bearing Preload - Adjust.....595
Service Brake Control - Adjust.....600
UENR3746 - Specifications (422F2; 427F2; 428F2; 432F2; 434F2 and 444F2 Backhoe Loaders Hydraulic and Steering System).....607
Radiator and Hydraulic Oil Cooler.....609
Hydraulic Tank and Mounting.....611
Hydraulic Hand Control.....613
Pump Drive - Mounting.....616
Piston Pump (Work Tool and Steering).....618
Pump Control Valve (Pressure and Flow Compensator).....620
Service Brake Control.....621
Metering Pump (Steering).....626
Hydraulic Hand Control (Loader) (Mechanically Operated).....627
Bank Valve (Two)(Mechanically Operated).....631
Bank Valve (Three)(Mechanically Operated).....633
Control Valve (Lift)(Mechanically Operated).....635
Control Valve (Tilt)(Mechanically Operated).....636
Hydraulic Pedal Control.....637
Lines (Hydraulic) - Return.....639
Lines (Hydraulic) - Lift and Tilt Cylinder.....641
Bank Valve (Five)(Mechanically Operated).....642
Control Manifold (Outlet).....644
Control Valve (Stick)(Mechanically Operated).....646
Control Valve (Swing)(Mechanically Operated).....648
Control Valve (Auxiliary) (Mechanically Operated).....650
Lift Cylinder.....652
Tilt Cylinder.....654
Multipurpose Bucket Cylinder.....656
Stabilizer Cylinder.....658
Sliding Frame.....660
Boom Cylinder.....663
Boom.....665
Swing Cylinder.....667
Swing Frame.....670
Bucket Cylinder (Backhoe).....675
Bucket Cylinder Lines.....678
Bucket Linkage.....680
Bucket.....686
Stick - 4.9 m (16.00 ft).....687
Stick - 4.3 m (14.00 ft).....690
Stick.....695
Stick Cylinder.....698
Lift Arm.....701
Transport Lock.....705
Ride Control Accumulator.....707
Ride Control Manifold.....709
Ride Control Lines.....711
Steering Control.....713
Steering Control Group.....715
UENR3747 - Systems Operation (422F2; 427F2; 426F2; 428F2; 432F2; 434F2 and 444F2 Backhoe Loaders Hydraulic and Steering System).....717
General Information (Steering).....718
Sideshift Slide Lock Circuit - If Equipped.....720
Hydraulic System Lockout.....725
Ride Control System.....727
Control Manifold (Sideshift).....731
Sideshift System.....734
Control Valve (Stabilizer).....735
Control Valve (Auxiliary) - Mechanically Operated.....744
Control Valve (Boom) - Mechanically Operated.....747
Control Valve (Swing) - Mechanically Operated.....751
Control Valve (Bucket) - Mechanically Operated.....755
Control Valve (Stick) - Mechanically Operated.....758
Control Valve (Extendable Stick) - Mechanically Operated.....762
Bank Valve (Backhoe) - Mechanically Operated.....765
Control Valve (Auxiliary)(Loader) - Mechanically Operated.....768
Bank Valve (Loader) - Single Tilt - Direct Operating.....771
Load Control Valve (Boom or Stick) - If Equipped.....773
Load Control Valve (Lift) - If Equipped.....780
Crossover Relief Valve (Swing Cushion) - If Equipped.....783
Priority Valve - Inlet Manifold of the Loader.....785
Piston Pump (Work Tool and Steering).....787
Hydraulic Tank and Filter.....795
General Information (Hydraulic System).....798
UENR3747 - Testing and Adjusting (422F2; 427F2; 426F2; 428F2; 432F2; 434F2 and 444F2 Backhoe Loaders Hydraulic and Steering System).....808
System Pressure - Release.....809
Hydraulic Oil Contamination - Test.....811
Hydraulic Pump - Test and Adjust.....814
Relief Valve (Line) - Test and Adjust.....824
Pilot System Pressure - Test.....829
Relief Valve (Loader) - Test and Adjust.....833
Ride Control - Test.....837
Ride Control Accumulator - Test and Charge.....840
Worksheets - Troubleshoot.....842
UENR3749 - Disassembly and Assembly (422F2; 427F2; 428F2; 432F2; 434F2 and 444F2 Backhoe Loaders Machine Systems).....844
Bucket Positioner Control - Remove and Install - Single Tilt.....846
Bucket Positioner Control - Remove and Install - Parallel Lift.....848
System Pressure - Release.....850
Bucket - Remove and Install.....851
Tilt Cylinder - Remove and Install - Parallel Lift.....857
Tilt Cylinder - Remove and Install - Single Tilt.....861
Lift Cylinder - Remove and Install - Parallel Lift.....867
Lift Cylinder - Remove and Install - Single Tilt.....871
Lift Arms - Remove and Install - Parallel Lift.....874
Lift Arms - Remove and Install - Single Tilt.....879
Hoe Bucket - Remove and Install.....884
Quick Coupler - Remove and Install - Parallel Lift.....885
Backhoe Bucket Linkage - Remove and Install.....887
Backhoe Bucket Cylinder - Remove and Install.....889
Stick Cylinder - Remove and Install.....893
Stick - Remove and Install.....899
Extendable Stick Cylinder - Remove and Install.....903
Extendable Stick - Remove and Install.....906
Boom Cylinder - Remove and Install.....909
Boom - Remove and Install.....915
Swing Cylinder - Remove and Install.....919
Swing Frame - Remove.....923
Swing Frame - Install.....926
Sliding Frame and Bearing - Remove.....929
Sliding Frame and Bearing - Install.....931
Stabilizer Cylinder - Remove and Install.....934
Stabilizer - Remove and Install.....938
Service Brake Control - Remove and Install.....940
Stabilizer Control Valve - Remove and Install.....944
Bank Valve (Backhoe) - Remove.....947
Bank Valve (Backhoe) - Install.....950
Bank Valve (Loader) - Remove.....953
Bank Valve (Loader) - Install.....956
Piston Pump (Main Hydraulic) - Remove and Install.....959
Hydraulic Tank - Remove and Install.....961
Steering Metering Pump - Remove and Install.....963
Steering Wheel - Remove and Install.....967
Window Wiper and Wiper Motor (Front) - Remove and Install.....969
Window Wiper and Wiper Motor (Rear) - Remove and Install.....975
Canopy - Remove and Install.....977
Cab - Remove.....989
Cab - Install.....1002
Refrigerant Accumulator - Remove and Install.....1014
Ride Control Accumulator - Remove and Install.....1016
Seat - Remove and Install.....1018
Air Conditioner and Heater - Remove and Install.....1021
Fuel Tank - Remove and Install.....1028
Counterweight - Remove and Install.....1031
UENR3750 - Schematic (416F2; 422F2; 428F2 and 434F2 Backhoe Loader Electrical System; Cab; Engine and Chassis (LYA1-374 LYK1-327 LYG1-1811 LYF1-801 LBF1-2291).....1032
Feature.....1032
Cover Page.....1034
Information.....0
Component Location.....0
Cab Wiring.....1035
Engine and Chassis Wiring.....1036
Connector Location.....0
Cab Wiring.....1037
Engine and Chassis Wiring.....1038
Schematics.....0
Cab Wiring.....1039
Engine and Chassis Wiring.....1040
Machine Views.....0
Cab Wiring.....0
Dash Wiring.....1041
HVAC and Washer Wiring.....1042
Return To DIG Wiring.....1043
RH Console Wiring.....1044
Ride Control Wiring.....1045
Engine and Chassis Wiring.....0
AWS Wiring.....1046
Engine Wiring (Left View).....1047
Engine Wiring (Right View).....1048
Headliner and Attachment Wiring.....1049
HVAC Wiring.....1050
Load Check Disable Wiring.....1051
Manual XMSN Wiring.....1052
Object Handling Wiring.....1053
Rear Valve and Frame Wiring.....1054
Right Console Wiring.....1055
UENR5026 - Disassembly and Assembly (415F2; 416F2; 420F2 IT; 420F2 ST; 430F2 IT and 430F2 ST Backhoe Loaders Machine Systems).....1056
System Pressure - Release.....1058
Bucket - Remove and Install.....1060
Bucket Positioner Control - Remove and Install - Single Tilt.....1066
Bucket Positioner Control - Remove and Install - Parallel Lift.....1069
Tilt Cylinder - Remove and Install - Parallel Lift.....1071
Tilt Cylinder - Remove and Install - Single Tilt.....1075
Lift Cylinder - Remove and Install - Parallel Lift.....1082
Lift Cylinder - Remove and Install - Single Tilt.....1086
Lift Arms - Remove and Install - Parallel Lift.....1089
Lift Arms - Remove and Install - Single Tilt.....1095
Hoe Bucket - Remove and Install.....1100
Quick Coupler - Remove and Install - Parallel Lift.....1102
Backhoe Bucket Linkage - Remove and Install.....1104
Backhoe Bucket Cylinder - Remove and Install.....1107
Stick Cylinder - Remove and Install.....1111
Stick - Remove and Install.....1117
Extendable Stick Cylinder - Remove and Install.....1121
Extendable Stick - Remove and Install.....1125
Boom Cylinder - Remove and Install.....1128
Boom - Remove and Install.....1134
Swing Cylinder - Remove and Install.....1139
Swing Frame - Remove.....1144
Swing Frame - Install.....1148
Stabilizer Cylinder - Remove and Install.....1151
Stabilizer - Remove and Install.....1156
Service Brake Control - Remove and Install.....1159
Stabilizer Control Valve - Remove and Install.....1164
Bank Valve (Backhoe) - Remove.....1167
Bank Valve (Backhoe) - Install.....1171
Bank Valve (Loader) - Remove.....1174
Bank Valve (Loader) - Install.....1177
Piston Pump (Main Hydraulic) - Remove and Install.....1180
Hydraulic Tank - Remove and Install.....1183
Steering Metering Pump - Remove and Install.....1186
Steering Wheel - Remove and Install.....1190
Window Wiper and Wiper Motor (Front) - Remove and Install.....1192
Window Wiper and Wiper Motor (Rear) - Remove and Install.....1198
Canopy - Remove and Install.....1200
Cab - Remove.....1212
Cab - Install.....1226
Refrigerant Accumulator - Remove and Install.....1238
Ride Control Accumulator - Remove and Install.....1240
Seat - Remove and Install.....1242
Air Conditioner and Heater - Remove and Install.....1245
Fuel Tank - Remove and Install.....1252
Counterweight - Remove and Install.....1255
UENR5153 - Schematic (416F2; 422F2; 428F2 and 434F2 Backhoe Loader Electrical System; Cab Wiring; Engine & Chassis Wiring (LYF802-UP LYG1812-UP LYK328-UP LBF2292-UP LYA375-UP).....1257
Feature.....1257
Cover Page.....1259
Information.....0
Component Location.....0
Cab Wiring.....1260
Engine and Chassis Wiring.....1261
Connector Location.....0
Cab Wiring.....1262
Engine and Chassis Wiring.....1263
Schematics.....0
Cab Wiring.....1264
Engine and Chassis Wiring.....1265
Machine Views.....0
Cab Wiring.....0
Dash Wiring.....1266
Front Dash Wiring.....1267
HVAC and Washer Wiring.....1268
Quick Coupler View.....1269
Return To Dig Wiring.....1270
RH Console Wiring.....1271
Ride Control Wiring.....1272
Engine and Chassis Wiring.....0
AWS Wiring.....1273
Engine Wiring (Left View).....1274
Engine Wiring (Right View).....1275
Headliner and Attachment Wiring.....1276
HVAC Wiring.....1277
Load Check Disable Wiring.....1278
Manual XMSN Wiring.....1279
Object Handling Wiring.....1280
Rear Valve and Frame Wiring.....1281
Right Console Wiring.....1282
UENR5153 - Schematic (422F2; 427F2; 428F2 and 434F2 Backhoe Loader Hydraulic System).....1283
Features.....1283
Cover page.....1285
Tables.....0
Components.....1286
Taps.....1287
Schematic.....1288
Machine Views.....0
Under Cab.....1289
Rear Machine.....1290
MP Bucket.....1291
Boom with E-Stick.....1292
Front 427 428 434.....1293
Front 422F.....1294
UENR6152 - Disassembly and Assembly (416F2; 420F2 IT; 420F2 ST; 422F2; 428F2; 430F2 IT; 430F2 ST; 432F2; 434F2 and 444F2 Backhoe Loaders Engine Supplement).....1295
System Pressure - Release.....1296
Hood - Remove and Install.....1297
Side Panel - Remove and Install.....1299
Muffler - Remove and Install.....1301
Battery - Remove and Install.....1304
Electric Starting Motor - Remove and Install.....1307
Alternator - Remove and Install.....1309
Refrigerant Compressor - Remove and Install.....1311
Air Cleaner - Remove and Install.....1314
Turbocharger - Remove and Install.....1316
Water Pump - Remove and Install.....1318
Water Temperature Regulator - Remove and Install.....1326
Fan - Remove and Install.....1328
Fan Drive - Remove and Install.....1331
Fuel Filter and Water Separator - Remove and Install.....1333
Radiator - Remove and Install.....1335
Refrigerant Condenser - Remove and Install.....1337
Hydraulic and Transmission Oil Cooler - Remove and Install.....1339
Radiator; Fuel Cooler; After Cooler; and Hydraulic and XMSN Oil Cooler - Remove and Install.....1341
Engine - Remove.....1348
Engine - Install.....1356
Caterpillar 422F2, 427F2, 428F2, 432F2 and 434F2 Backhoe Loaders Repair Service Manual
