Case 521F Tier 4B (final) Wheel Loader Service Repair Manual Case 521F
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Case 521F Tier 4B (final) Wheel Loader Service Repair Manual Case 521F
- All repair and maintenance work listed in this manual must be carried out only by qualified dealership personnel, strictly complying with the instructions given, and using, whenever possible, the special tools.
- Anyone who performs repair and maintenance operations without complying with the procedures provided herein shall be responsible for any subsequent damages.
- The manufacturer and all the organizations of its distribution chain, including – without limitation – national, regional, or local dealers, reject any responsibility for damages caused by parts and/or components not approved by the manufacturer, including those used for the servicing or repair of the product manufactured or marketed by the manufacturer.
- In any case, no warranty is given or attributed on the product manufactured or marketed by the manufacturer in case of damages caused by parts and/or components not approved by the manufacturer. The information in this manual is up-to-date at the date of the publication.
- It is the policy of the manufacturer for continuous improvement. Some information could not be updated due to modifications of a technical or commercial type, or changes to the laws and regulations of different countries.
- In case of questions, refer to your CASE CONSTRUCTION Sales and Service Networks.
TABLE OF CONTENTS:
Case 521F Tier 4B (final) Wheel Loader Service Repair Manual Case 521F
INTRODUCTION………………………………………………. 3
Engine – 10……………………………………………….. 29
Engine and crankcase – 001………………………………. 31
Air cleaners and lines – 202…………………………….. 83
Selective Catalytic Reduction (SCR) exhaust treatment – 500…. 91
Engine cooling system – 400………………………………135
Fan and drive – 414……………………………………..145
Aftercooler – 310……………………………………….177
Engine lubrication system – 304…………………………..197
Transmission – 21…………………………………………..207
Powershift transmission – 113…………………………….209
Powershift transmission external controls – 135…………….285
Powershift transmission internal components – 155…………..297
Four-Wheel Drive (4WD) system – 23…………………….. 3
Drive shaft – 314………………………………… 5
Front axle system – 25……………………………….. 25
Powered front axle – 100………………………….. 27
Front bevel gear set and differential – 102…………. 41
Final drive hub, steering knuckles, and shafts – 108…. 93
Final drives – 310……………………………….. 99
Rear axle system – 27…………………………………131
Powered rear axle – 100……………………………133
Rear bevel gear set and differential – 106…………..147
Planetary and final drives – 120……………………193
Final drive hub, steering knuckles, and shafts – 124….223
Brakes and controls – 33………………………………229
Hydraulic service brakes – 202……………………..231
Parking brake or parking lock – 110…………………285
Hydraulic systems – 35………………………. 3
Hydraulic systems – 000………………….. 5
Reservoir, cooler, and filters – 300………. 37
Variable displacement pump – 106………….. 49
Main control valve – 359…………………. 61
Pilot system – 357………………………. 87
Hydraulic fan drive cooling system – 752…… 93
Hydraulic hand control – 355………………101
Front loader arm hydraulic system – 701…….111
Front loader bucket hydraulic system – 723….159
Tool quick coupler hydraulic system – 734…..195
Frames and ballasting – 39……………………203
Frame – 100……………………………..205
Steering – 41……………………………….221
Hydraulic control components – 200…………223
Cylinders – 216………………………….281
Auxiliary steering – 910………………….295
Wheels – 44…………………………………315
Front wheels – 511……………………….317
Rear wheels – 520………………………..323
Cab climate control – 50……………………..329
Heating – 100……………………………331
Air conditioning – 200……………………347
Electrical systems – 55…………… 3
Electrical system – 000……….. 7
Harnesses and connectors – 100….11
Electrical systems – 55………………………………………………. 2
Engine control system – 015……………………………………….. 3
Engine starting system – 201………………………………………. 9
Alternator – 301…………………………………………………. 25
Battery – 302……………………………………………………. 37
Cold start aid – 202……………………………………………… 51
Fuel tank system – 011……………………………………………. 59
Selective Catalytic Reduction (SCR) electrical system – 988…………… 65
Exhaust Gas Recirculation (EGR) electrical system – 989……………….117
Engine cooling system – 012………………………………………..125
Transmission control system – 024…………………………………..131
Cab brake controls – 519…………………………………………..137
Service brake electrical system – 030……………………………….143
Parking brake electrical system – 031……………………………….149
Cab controls – 512………………………………………………..159
Hydraulic system control – 036……………………………………..163
Cab Heating, Ventilation, and Air-Conditioning (HVAC) controls – 051……167
Heating, Ventilation, and Air-Conditioning (HVAC) control system – 050….173
Steering control system – 047………………………………………183
Cab controls (Lift arm, Boom, Dipper, Bucket) – 524…………………..197
Loader arm and bucket control system – 415…………………………..203
Wiper and washer system – 518………………………………………209
External lighting – 404……………………………………………227
External lighting switches and relays – 405………………………….247
Cab lighting – 514………………………………………………..265
Cab or platform harnesses and connectors – 510……………………….271
Warning indicators, alarms, and instruments – 408…………………….277
Electrical systems – 55………………… 2
FAULT CODES – DTC………………….. 2
Front loader and bucket – 82…………….357
Arm – 100………………………….359
Bucket – 300……………………….375
Platform, cab, bodywork, and decals – 90….381
Cab – 150………………………….383
Cab glazing – 156…………………..403
Machine shields and guards – 105……..411
SPECIAL TOOL INDEX……………………..420
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- This is the same manual used by the dealers to diagnose and troubleshoot your vehicle
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