Caterpillar 988B Wheel Loaders Repair Service Manual
Complete service repair manual with Electrical Wiring Diagrams for Caterpillar 988B Wheel Loaders, with all the technical information to maintain, diagnose, repair, and rebuild like professional mechanics.
Caterpillar 988B Wheel 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.
SENR2528 - Disassembly & Assembly (988B & 992B Wheel Loader Operator's Station).pdf
SENR2624 - Specifications (988B Wheel Loader Power Train).pdf
SENR2625 - Systems Operation (988B Wheel Loader Power Train).pdf
SENR2625 - Testing & Adjusting (988B Wheel Loader Power Train).pdf
SENR2626 - Testing and Adjusting (988B Wheel Loader Power Shift Transmission).pdf
SENR2628 - Specifications (988B Wheel Loader Steering System).pdf
SENR2629 - Systems Operation (988B Wheel Loader Steering System).pdf
SENR2629 - Testing & Adjusting (988B Wheel Loader Steering System).pdf
SENR2630 - Specifications (988B Wheel Loader Brake System).pdf
SENR2631 - Systems Operation (988B Wheel Loader Brake System).pdf
SENR2631 - Testing & Adjusting (988B Wheel Loader Brake System).pdf
SENR2632 - Specifications (988B Wheel Loader Hydraulic System).pdf
SENR2633 - Systems Operation (988B Wheel Loader Hydraulic System).pdf
SENR2633 - Testing & Adjusting (988B Wheel Loader Hydraulic System).pdf
SENR2635 - Schematic (988B Wheel Loader Hydraulic System).pdf
SENR2636 - Schematic (988B Wheel Loader Electrical System).pdf
SENR2637 - Systems Operation (988B Wheel Loader Operator's Station And Electrical System).pdf
SENR2637 - Testing & Adjusting (988B Wheel Loader Operator's Station And Electrical System).pdf
SENR7322 - Specifications (988B Wheel Loader Power Train).pdf
SENR7323 - Systems Operation (988B Wheel Loader Power Train).pdf
SENR7323 - Testing & Adjusting (988B Wheel Loader Power Train).pdf
SENR7324 - Testing & Adjusting (988B Power Shift Transmission).pdf
SENR7325 - Disassembly & Assembly (988B Wheel Loader Power Train).pdf
SENR7326 - Specifications (988B Wheel Loader Steering System).pdf
SENR7327 - Systems Operation (988B Wheel Loader Steering System).pdf
SENR7327 - Testing & Adjusting (988B Wheel Loader Steering System).pdf
SENR7328 - Specifications (988B Wheel Loader Brake System).pdf
SENR7329 - Systems Operation (988B Wheel Loader Brake System).pdf
SENR7329 - Testing & Adjusting (988B Wheel Loader Brake System).pdf
SENR7330 - Specifications (988B Wheel Loader Hydraulic System).pdf
SENR7331 - Systems Operation (988B Wheel Loader Hydraulic System).pdf
SENR7331 - Testing & Adjusting (988B Wheel Loader Hydraulic System).pdf
SENR7332 - Systems Operation (988B Wheel Loader Power Train).pdf
SENR7332 - Testing & Adjusting (988B Wheel Loader Power Train).pdf
SENR7333 - Schematic (988B Wheel Loader Electrical System).pdf
SENR7334 - Electrical Schematics (988B Wheel Loader Operator's Station).pdf
SENR7334 - General Service Information (988B Wheel Loader Operator's Station).pdf
SENR7334 - Troubleshooting (988B Wheel Loader Operator's Station).pdf
SENR7468 - Testing & Adjusting (988B Insert_for Use With Steering Tee Test Procedure - I).pdf
SENR7469 - Testing & Adjusting (988B(50W) Insert_ For Use With Flow Meter Tee Test Procedure).pdf
SENR7498 - Specifications (988B Wheel Loader Brake System).pdf
SEBP1388 - Parts Manual (988B Wheel Loader, Powered by 3408 Engine).pdf
PRODUCT DETAILS:
Total Pages: 4,311 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English
TABLE OF CONTENTS
SEBP1388 - Parts Manual (988B Wheel Loader, Powered by 3408 Engine)...1
AIR INLET AND EXHAUST...2
BASIC ENGINE...50
BRAKING SYSTEM...287
COOLING SYSTEM...344
ELECTRICAL AND STARTING SYSTEM...454
FRAME AND BODY...772
FUEL SYSTEM...938
HYDRAULIC SYSTEM...1172
IMPLEMENTS...1506
LUBRICATION SYSTEM...1532
OPERATOR STATION...1576
POWER TRAIN...2054
SERVICE EQUIPMENT AND SUPPLIES...2413
STEERING SYSTEM...2423
WORK TOOLS...2513
SENR2528 - Disassembly & Assembly (988B & 992B Wheel Loader Operator's Station)...2714
Adjustable Steering Column...2715
Air Conditioner And Filter...2731
Brake Pedal Group...2737
Cab Door And Striker...2744
Cab Door...2748
Cab Heater...2752
Cab Right Side Window Glass...2757
Cab Window Glass...2760
Cab...2764
Fuse Plate...2776
Governor Pedal Group...2779
Horn Floor Switch...2790
Hydraulic Control Console (Torque Converter, Implement And Tilt)...2792
Instrument Panels...2806
Lift And Tilt Hydraulic Control Levers...2810
Rollover Protective Structure (ROPS) (988B)...2813
Rollover Protective Structure (ROPS) (992C)...2818
Seat Belt...2822
Seat...2824
Sound Suppression...2844
Torque Converter Control Linkage...2849
Windshield Wiper Motor And Linkage...2852
SENR2624 - Specifications (988B Wheel Loader Power Train)...2860
Axle Groups...2861
Differential And Bevel Gear (Front And Rear)...2865
Drive Shafts...2869
Final Drives, Brakes And Wheels...2873
Introduction...2876
Mounting Group (ROPS)...2877
NoSPIN Differential Group 5V416...2880
Relief Valve For Converter Outlet...2882
Rim Group...2884
Selector And Pressure Control Valve For Transmission...2886
Sequence And Pressure Control Valve...2891
Torque Converter...2894
Transfer Gears...2897
Transmission Control Lock...2903
Transmission Hydraulic Controls...2906
Transmission Neutralizer Housing...2908
Transmission Neutralizer Valve ...2910
Transmission Oil Filter...2912
Transmission Oil Pump...2915
Transmission...2917
Wheel Bearing Adjustment...2921
SENR2625 - Systems Operation (988B Wheel Loader Power Train)...2928
SENR2625 - Testing & Adjusting (988B Wheel Loader Power Train)...2987
SENR2626 - Testing and Adjusting (988B Wheel Loader Power Shift Transmission)...2998
SENR2628 - Specifications (988B Wheel Loader Steering System)...3028
Diverter Valve Group For Supplemental Steering (Optional)...3029
Flow Switch For Supplemental Steering (Optional)...3031
Hand Metering Unit (HMU)...3033
Hydraulic Pump...3036
Introduction...3043
Neutralizer Valves...3044
Pivot Pin Bearing Adjustment...3046
Steering Control Group...3051
Steering Control Valve...3053
Steering Cylinder And Mounting...3056
Supplemental Steering Pump (Optional)...3058
SENR2629 - Systems Operation (988B Wheel Loader Steering System)...3060
SENR2629 - Testing & Adjusting (988B Wheel Loader Steering System)...3074
SENR2630 - Specifications (988B Wheel Loader Brake System)...3088
Accumulator Charging Valve...3089
Accumulator...3092
Adjustment Of Brake Control Linkage And Brake Pedal Travel...3095
Brake Control Valve...3099
Brake Pedal...3101
Hydraulic Pump...3103
Introduction...3110
Parking Brake Control Valve...3111
Pump...3112
Secondary And Parking Brake...3114
Transmission Neutralizer Control Valve...3117
Wheel Brakes...3119
SENR2631 - Systems Operation (988B Wheel Loader Brake System)...3121
SENR2631 - Testing & Adjusting (988B Wheel Loader Brake System)...3139
SENR2632 - Specifications (988B Wheel Loader Hydraulic System)...3156
Bucket Positioner Adjustment Procedure...3157
Bucket and Fork Control Groups...3159
Control Valves...3163
Cylinder Groups...3171
Hydraulic Control Levers For Lift and Tilt...3174
Hydraulic Pumps...3177
Introduction...3184
Lift Kickout Adjustment Procedure...3185
Oil Filter ByPass...3188
Oil Filter...3191
Relief Valve Groups...3194
Valve Groups...3201
SENR2633 - Systems Operation (988B Wheel Loader Hydraulic System)...3203
SENR2633 - Testing & Adjusting (988B Wheel Loader Hydraulic System)...3227
SENR2635 - Schematic (988B Wheel Loader Hydraulic System)...3251
Collage...3252
Main...3272
SENR2636 - Schematic (988B Wheel Loader Electrical System)...3274
Collage...3275
Main...3305
SENR2637 - Systems Operation (988B Wheel Loader Operator's Station And Electrical System)...3307
SENR2637 - Testing & Adjusting (988B Wheel Loader Operator's Station And Electrical System)...3328
SENR7322 - Specifications (988B Wheel Loader Power Train)...3488
Adjustment Of The Wheel Bearings...3489
Axle Group (Fixed)...3494
Axle Group (Oscillating)...3495
Bearing Cage...3497
Differentials And Bevel Gears...3501
Differentials...3507
Drive Shaft (Bearing Cage to Front Differential)...3508
Drive Shaft (Transfer Gears to Bearing Cage)...3509
Drive Shaft (Transfer Gears to Rear Differential)...3510
Drive Shaft (Upper)...3511
Final Drives, Brakes And Wheels...3512
Introduction...3514
Pressure Control Valve For Transmission (6P5142)...3515
Rim Group...3520
Sequence And Pressure Control Valve (6P6569)...3522
Torque Converter...3525
Transfer Gears (Input)...3528
Transfer Gears (Output)...3531
Transmission Control Lock (3V979)...3534
Transmission Hydraulic Controls...3537
Transmission Neutralizer Valve...3539
Transmission Oil Filter...3541
Transmission Oil Pump (3P380)...3544
Transmission...3548
SENR7323 - Systems Operation (988B Wheel Loader Power Train)...3550
SENR7323 - Testing & Adjusting (988B Wheel Loader Power Train)...3598
SENR7324 - Testing & Adjusting (988B Power Shift Transmission)...3607
SENR7325 - Disassembly & Assembly (988B Wheel Loader Power Train)...3633
Differential (Rear Axle NoSpin)...3634
Drive Axles...3644
Final Drive Planet Carriers...3648
Front Differential And Bevel Gear...3653
Main Drive Shaft Group...3659
Parking Brake...3668
Rear Differential, Bevel Gear And Front Support...3679
Rear Support...3695
Sequence And Pressure Control Valve...3701
Tires And Rims...3705
Torque Converter Outlet Relief Valve...3709
Torque Converter...3714
Transfer Gears (Input And Output)...3747
Transmission And Transfer Gears...3775
Transmission Control Lock...3789
Transmission Hydraulic Controls...3796
Transmission Oil Pump...3804
Transmission...3815
Wheel Assemblies And Wheel Brake Assemblies...3859
SENR7326 - Specifications (988B Wheel Loader Steering System)...3875
Diverter Valve Group For Supplemental Steering (Optional) (8J6099)...3876
Filter...3878
Flow Switch For Supplemental Steering (Optional) (9J4132)...3880
Hydraulic Pump (8J6694)...3882
Introduction...3885
Neutralizer Valves (8J1553)...3886
SMCS - 3150-015; 3150-016...3888
Steering Control Group...3889
Steering Control Valve (8J2318)...3891
Steering Cylinder And Mounting (9J8165)...3894
Supplemental Steering Pump (Optional) (8J2611)...3896
SENR7327 - Systems Operation (988B Wheel Loader Steering System)...3898
SENR7327 - Testing & Adjusting (988B Wheel Loader Steering System)...3915
SENR7328 - Specifications (988B Wheel Loader Brake System)...3928
Accumulator (9J4684)...3929
Accumulator Charging Valve (9J4693)...3931
Adjustment Of Brake Control Linkage And Brake Pedal Travel...3934
Brake Control Valve (9J4080)...3938
Brake Pedal...3940
Emergency And Parking Brake...3941
Hydraulic Pump (3G7610)...3944
Hydraulic Pump (8J6694)...3947
Introduction...3950
Parking Brake Control Valve (3G2228)...3951
Transmission Neutralizer Control Valve (9J4695)...3952
Wheel Brakes...3954
SENR7329 - Systems Operation (988B Wheel Loader Brake System)...3956
SENR7329 - Testing & Adjusting (988B Wheel Loader Brake System)...3969
SENR7330 - Specifications (988B Wheel Loader Hydraulic System)...3986
Bucket Positioner...3987
Filter For Pilot System (3P4603)...3989
Filter...3993
Float Selector Valve (8J2602)...3995
Hydraulic Pump (3G2640)...3996
Hydraulic Pump (8J809)...3998
Hydraulic Pump 8J6694...4000
Introduction...4003
Lift Cylinder (8J5779)...4004
Lift Kickout...4006
Loader Hydraulic Control Valve (8J2292)...4008
Loader Hydraulic Control Valve (8J2293)...4011
PIn Installation (Cylinders And Lift Arm Assembly)...4014
Pilot Control Valve (9J4142)...4018
Pilot Control Valve (9J5730)...4020
Relief Valve For Main System Pressure (3G2627)...4022
Relief Valve For Main System Pressure (8J2312)...4025
Relief Valve For Pilot System (8J7405)...4029
Relief Valves For Tilt Circuit (8J5506 and 3G2644)...4031
Relief Valves For Tilt Circuit (8J5506 and 8J3630)...4033
Tilt Cylinder (3G2976)...4035
Tilt Cylinder (9J3632)...4036
SENR7331 - Systems Operation (988B Wheel Loader Hydraulic System)...4037
SENR7331 - Testing & Adjusting (988B Wheel Loader Hydraulic System)...4059
SENR7332 - Systems Operation (988B Wheel Loader Power Train)...4094
SENR7332 - Testing & Adjusting (988B Wheel Loader Power Train)...4142
SENR7333 - Schematic (988B Wheel Loader Electrical System)...4151
Collage...4152
Main...4158
SENR7334 - Electrical Schematics (988B Wheel Loader Operator's Station)...4160
SENR7334 - General Service Information (988B Wheel Loader Operator's Station)...4167
Control Groups...4168
Electrical Systems...4172
Introduction...4207
Operator Comfort Items...4209
Safety Items...4213
Structural Components...4217
SENR7334 - Troubleshooting (988B Wheel Loader Operator's Station)...4219
988B Kickouts...4220
Block Diagram For Troubleshooting...4255
Codes And Abbreviations...4265
Individual Circuits And Components...4275
Operator Warning System...4295
Troubleshooting Methods...4297
SENR7468 - Testing & Adjusting (988B Insert_for Use With Steering Tee Test Procedure - I)...4306
SENR7469 - Testing & Adjusting (988B(50W) Insert_ For Use With Flow Meter Tee Test Procedure)...4312
SENR7498 - Specifications (988B Wheel Loader Brake System)...4321
Accumulator (9J4684)...4322
Accumulator Charging Valve (9J4693)...4324
Adjustment Of Brake Control Linkage And Brake Pedal Travel...4327
Brake Control Valve (9J4080)...4331
Brake Pedal...4333
Emergency And Parking Brake...4334
Parking Brake Control Valve (3G2228)...4337
Transmission Neutralizer Control Valve (9J4695)...4338
Wheel Brakes...4340
Caterpillar 988B Wheel Loaders Repair Service Manual
