Caterpillar 793C Off-Highway Truck/Tractor Repair Service Manual
Complete service repair manual with Electrical Wiring Diagrams for Caterpillar 793C Off-Highway Truck/Tractor, with all the technical information to maintain, diagnose, repair, and rebuild like professional mechanics.
Caterpillar 793C Off-Highway Truck/Tractor 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.
SENR1446 - Schematic (793C OFF-HIGHWAY TRUCK HYDRAULIC SCHEMATIC).pdf
SENR1447 - Schematic (793C Truck Electrical System (For Serial Numbers 4AR1-217)) .pdf
SENR1448 - Specifications (793C and 793C XQ Off-Highway Truck Power Train).pdf
SENR1449 - Systems Operation (793C Off-Highway Truck Power Train).pdf
SENR1451 - Specifications (793C and 793C XQ Off-Highway Truck Steering System).pdf
SENR1452 - Systems Operation & Testing and Adjusting (793C and 793C XQ Off-Highway Truck Steering System).pdf
SENR1453 - Specifications (793C and 793C XQ Off-Highway Truck Air System and Brakes).pdf
SENR1454 - Systems Operation (793C Off-Highway Truck Air System and Brakes).pdf
SENR1454 - Testing and Adjusting (793C Off-Highway Truck Air System and Brakes).pdf
SENR1457 - Specifications (793C and 793C XQ Off-Highway Truck Hydraulic System).pdf
SENR1458 - Systems Operation (793C Off-Highway Truck Hydraulic System).pdf
SENR1458 - Testing and Adjusting (793C Off-Highway Truck Hydraulic System).pdf
SENR1462 - Disassembly and Assembly (793C Off-Highway Truck_Tractor Power Train).pdf
SENR1463 - Disassembly and Assembly (793C Off-Highway Truck Machine Systems).pdf
SENR1480 - Schematic (793C Off-Highway Truck Electrical System;146-8805-01(For Serial Numbers 4AR218-UP)).pdf
UENR2531 - Schematic (Off-Highway Truck CAT Detect Object Detection Wash Electrical System; 376-2331).pdf
UENR2635 - Schematic (Off-Highway Truck CAT Detect Object Detection Electrical System; 382-0969).pdf
PRODUCT DETAILS:
Total Pages: 2,465 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English
TABLE OF CONTENTS
SENR1446 - Schematic (793C OFF-HIGHWAY TRUCK HYDRAULIC SCHEMATIC)................1
SENR1447 - Schematic (793C Truck Electrical System (For Serial Numbers 4AR1-217)) ................3
Features................3
Cover Page................5
Information................0
Component Location................0
Page 1 of 2................6
Page 2 of 2................7
Connector Location................8
Schematic................9
Machine Views................0
Machine Harness Connector and Component Locations................10
Rear Compartment (Area E) Rear View................11
Rear Compartment Side Wall (Area J) Right Side View................12
SENR1448 - Specifications (793C and 793C XQ Off-Highway Truck Power Train)................13
Pump Drive Shaft................15
Pump Drive................16
Gear Pump (Transmission and Torque Converter)................18
Oil Filter (Torque Converter)................20
Pressure Switch (Torque Converter Inlet Filter)................23
Torque Converter................25
Relief Valve (Torque Converter Inlet)................29
Relief Valve (Torque Converter Outlet)................30
Lockup Clutch and Synchronizing Valve (Torque Converter)................32
Temperature Sensor (Torque Converter Oil)................36
Screen (Torque Converter)................38
Bypass Switch (Torque Converter Screen)................41
Speed Sensor (Torque Converter Output)................42
Oil Filter (Transmission Charging)................43
Bypass Switch (Transmission Charging Filter)................46
Transmission Control................47
Accelerator Control................50
Transmission Hydraulic Control................52
Selector and Pressure Control Valve (Transmission)................57
Pressure Control Valve (Transmission)................60
Solenoid Valve (Upshift; Downshift and Lockup Clutch)................65
Rotary Actuator (Transmission)................67
Lubrication Relief Valve (Transmission)................68
Transmission Planetary................69
Speed Sensor (Transmission)................73
Temperature Sensor (Transmission Oil)................74
Transfer Gears................76
Drive Shaft (Main)................78
Differential and Bevel Gear................79
Differential................85
Gear Pump (Rear Axle Oil)................87
Pressure Sensor (Rear Axle Oil Pump)................89
Oil Filter (Rear Axle)................91
Bypass Switch (Rear Axle Oil Filter)................94
Flow Control and Relief Valve (Rear Axle Oil)................95
Liquid Level Switch (Rear Axle Oil)................98
Temperature Sensor (Rear Axle Oil)................100
Rear Axle Housing................102
Rear Wheel................105
Speed Sensor (Rear Wheel)................109
Final Drive................111
Torque Converter and Transmission Pressure Chart................119
SENR1449 - Systems Operation (793C Off-Highway Truck Power Train)................126
General Information................128
Power Train Hydraulic System................131
Power Train Electrical System................133
Transmission Electronic Control................135
Transmission Gear Indicator................136
Hoist Control Lever................140
Electronic Control (Body Down or Up Switch)................141
Speed Sensor (Transmission)................142
Solenoid Valve (Upshift and Downshift)................143
Lockup Solenoid................144
Neutral Start Control................145
Neutral Coasting................146
Parking Brake and Secondary Brake Switch................147
Service Brake and Retarder Switch................149
Torque Converter and Transmission Hydraulic System................150
Torque Converter Sump................160
Torque Converter................161
Power Train Components and Lines................167
Gear Pump (Torque Converter and Transmission)................174
Oil Filter (Torque Converter)................177
Torque Converter Inlet and Outlet Relief Valves................180
Lockup Clutch and Synchronizing Valve (Torque Converter)................183
Screen (Torque Converter)................187
Oil Cooler (Torque Converter and Transmission)................190
Transmission Clutch Engagement................191
Transmission Hydraulic Control................200
Oil Filter (Transmission Charging)................203
Magnetic Screen (Transmission)................206
Rotary Actuator (Transmission)................208
Selector and Pressure Control Valve (Transmission)................210
Pressure Control Valve (Transmission)................217
Lubrication Relief Valve (Transmission)................223
Transmission Planetary................224
Transfer Gears................235
Rear Axle and Final Drive System................237
Differential and Bevel Gear................239
Gear Pump (Rear Axle Oil)................242
Oil Filter (Rear Axle)................243
Flow Control and Relief Valve (Rear Axle Oil)................246
Temperature Sensor (Rear Axle Oil)................249
Final Drive................250
SENR1451 - Specifications (793C and 793C XQ Off-Highway Truck Steering System)................252
Steering Tank and Filter................253
Temperature Sensor (Steering Oil)................256
Piston Pump (Steering)................258
Pump Drive................264
Pump Drive Shaft................266
Oil Filter (Steering Pump Case Drain)................267
Accumulator Charging Valve................269
Check Valve (Steering)................275
Steering Accumulator................276
Solenoid and Relief Valve (Steering)................278
Solenoid Valve (Steering)................283
Pressure Switch (Steering Pump Oil High)................287
Relief Valve (Steering)................288
Steering Control Valve................290
Check and Relief Valve (Steering)................293
Steering Gear................294
Metering Pump (Steering)................296
Pressure Switch (Steering Pump Oil Low)................297
Steering Cylinder................298
Steering Linkage and Cylinder Mounting................300
Front Wheel................306
SENR1452 - Systems Operation & Testing and Adjusting (793C and 793C XQ Off-Highway Truck Steering System)................309
Steering System................310
Piston Pump (Steering)................320
Accumulator Charging Valve................324
Steering Accumulator................330
Solenoid and Relief Valve (Steering)................331
Steering Control Valve................335
Metering Pump (Steering)................345
Pressure Switches................352
General Information................354
Visual Inspection................355
Steering System Troubleshooting................357
Piston Pump (Steering) Pressure - Test and Adjust................367
Relief Valve (Steering) - Test and Adjust................377
Steering Control Valve - Adjust................379
Steering Accumulator - Test and Charge................381
Front Axle - Install and Adjust................389
Front Wheel Bearing - Adjust - Standard Wheel................392
Front Wheel - Align................395
Pump Drive - Adjust................398
Worksheets................400
SENR1453 - Specifications (793C and 793C XQ Off-Highway Truck Air System and Brakes)................402
Air Compressor Governor................404
Air Dryer................405
Relief Valve (Air Dryer)................408
Relief Valve (Primary Air Tank)................410
Check Valve (Primary Air Tank)................411
Air Starting Motor................412
Window Wiper Motor................416
Air Control Valve (Window Wiper)................419
Air Control Valve (Service Brake)................421
Air Control Valve (Retarder)................423
Check Valve (Service Brake Control)................425
Air Control Valve (Secondary Brake)................426
Brake Valve (Parking and Secondary)................428
Pressure Protection Valve (Air System)................432
Pressure Protection Valve (Brake Air System)................434
Solenoid Valve (Air Horn)................436
Diverter Valve (Front Brake Cooling)................438
Relay Valve (Brake Air)................440
Control Valve (Hoist)................442
Air_Hydraulic Cylinder (Front Brake)................450
Air_Hydraulic Cylinder (Rear Brake)................454
Limit Switch (Brake Cylinder Overstroke)................456
Slack Adjuster (Front)................457
Slack Adjuster (Rear)................459
Hydraulic Tank (Hoist and Brake)................461
Hydraulic Tank (Hoist and Brake) Mounting................464
Gear Pump (Hoist and Front Brake Cooling)................465
Gear Pump (Rear Brake Cooling and Parking Brake Release)................468
Brake Release Pump and Motor (Parking and Secondary)................470
Pump Drive................472
Pump Drive Shaft................474
Relief Valve (Rear Brake Oil Cooler)................475
Traction Control Valve................477
Oil Filter (Front Brake Cooling)................483
Pressure Switch (Front Brake Cooling Hydraulic Filter)................485
Oil Filter (Parking Brake Release)................487
Bypass Switch (Parking Brake Release Hydraulic Filter)................490
Front Wheel................492
Service and Parking Brake (Front)................495
Rear Wheel................499
Service and Parking Brake (Rear)................503
Temperature Sensor (Brake Oil)................507
Pressure Sensor (Brake Air)................509
Pressure Switch (Secondary Brake and Parking Brake)................512
Pressure Switch (Service Brake and Retarder)................513
Pressure Switch (Manual Retarder)................514
Pressure Switch (Automatic Retarder Control)................515
Pressure Switch (Stop Light)................517
Solenoid Valve (Automatic Retarder Supply and Automatic Retarder Control)................518
SENR1454 - Systems Operation (793C Off-Highway Truck Air System and Brakes)................519
Air System Schematic................520
Hydraulic System Schematic................523
Air Compressor................527
Air Compressor Governor................528
Air Dryer................530
Air Tank................531
Check Valve (Air Tank)................533
Pressure Protection Valve (Air System)................535
Air Control Valve (Service Brake)................538
Air Control Valve (Secondary Brake)................541
Air Control Valve (Parking Brake)................542
Brake Valve (Parking and Secondary)................545
Air Control Valve (Retarder)................549
Check Valve (Double)................552
Air_Hydraulic Cylinder (Brake)................554
Air Flow Schematic................557
Relief Valve (Brake Oil Cooler)................568
Oil Filter (Parking Brake Release)................569
Brake Cooling System................572
Slack Adjuster................575
Service and Parking Brake................577
Towing................582
SENR1454 - Testing and Adjusting (793C Off-Highway Truck Air System and Brakes)................585
General Information................586
Visual Inspection................588
Operational Checks................589
Brake System Troubleshooting................595
Air Compressor Governor - Test and Adjust................606
Air Control Valve (Retarder) Pressure - Test and Adjust................611
Brake System Air - Purge................613
Service Brake Discs - Check................619
Service Brakes and Retarder System Leakage - Check................628
Service Brakes and Retarder System Pressure - Test................636
Slack Adjuster - Test and Adjust................640
Brake Cooling Pressure - Check................645
Internal Brake Leakage - Check................651
Parking and Secondary Brake Release System Leakage - Check................658
Relief Valve (Electric Drive Pump) - Adjust................662
Towing the Machine - Preparation................665
Worksheets................667
SENR1457 - Specifications (793C and 793C XQ Off-Highway Truck Hydraulic System)................670
Hydraulic Tank (Hoist and Brake)................671
Hydraulic Tank (Hoist and Brake) Mounting................674
Gear Pump (Hoist and Front Brake Cooling)................675
Pump Drive................678
Pump Drive Shaft................680
Manifold (Hoist)................681
Bypass Switch (Hoist Screen)................685
Control Valve (Hoist)................686
Relief Valve (Hoist Dual Stage)................694
Solenoid Valve (Hoist)................696
Solenoid Valve (Hoist) ................697
Position Sensor (Hoist Control)................698
Relief Valve (Rear Brake Oil Cooler)................699
Hoist Cylinder................703
Cab Mounting................705
Body Mounting................707
SENR1458 - Systems Operation (793C Off-Highway Truck Hydraulic System)................711
General Information................712
Hydraulic System Schematic................713
Hydraulic Components and Lines................715
Hydraulic Tank (Hoist and Brake)................719
Hoist and Front Brake Cooling Pump - Double Section................722
Hoist Control Lever................723
Hoist Control Valve................724
Hoist Cylinder................731
Relief Valve (Rear Brake Oil Cooler)................737
SENR1458 - Testing and Adjusting (793C Off-Highway Truck Hydraulic System)................739
General Information................740
Hoist System Troubleshooting................742
Hoist and Brake Cooling Hydraulic System Troubleshooting................744
Brake Oil Overheating - Troubleshooting................754
Hoist Cylinder Performance - Test................760
Relief Valve (Hoist Dual Stage) - Test and Adjust................762
Hydraulic Tank Oil Fill - Test_Adjust................768
Gear Pump (Hoist and Front Brake Cooling) Efficiency - Test................770
SENR1462 - Disassembly and Assembly (793C Off-Highway Truck_Tractor Power Train)................772
Duo-Cone Seals - Install................775
Truck Body Retaining Cable - Remove and Install................782
Torque Converter - Remove................786
Torque Converter - Disassemble................796
Torque Converter - Assemble................823
Torque Converter - Install................849
Oil Filter and Base (Torque Converter) - Remove................858
Oil Filter and Base (Torque Converter) - Disassemble................860
Oil Filter and Base (Torque Converter) - Assemble................863
Lockup Clutch and Synchronizing Valve - Disassemble................866
Lockup Clutch and Synchronizing Valve - Assemble................875
Gear Pump (Torque Converter and Transmission) - Remove................885
Gear Pump (Torque Converter and Transmission) - Disassemble................889
Gear Pump (Torque Converter and Transmission) - Assemble................896
Gear Pump (Torque Converter and Transmission) - Install................905
Drive Shaft (Main) - Remove and Install................908
Drive Shaft Guard (Front) - Remove and Install................914
Drive Shaft Guard (Rear) - Remove and Install................916
Gear Pump (Rear Axle Lube) - Disassemble................918
Gear Pump (Rear Axle Lube) - Assemble................921
Transmission Hydraulic Control - Remove................924
Transmission Hydraulic Control - Disassemble................929
Transmission Hydraulic Control - Assemble................947
Transmission Hydraulic Control - Install................966
Screen (Torque Converter) - Disassemble................970
Screen (Torque Converter) - Assemble................973
Transmission and Transfer Gears - Remove................976
Transfer Gears - Disassemble................984
Transfer Gears - Assemble................995
Transmission Planetary - Disassemble................1008
Transmission Planetary - Assemble................1066
Transmission and Transfer Gears - Install................1121
Oil Filter and Base (Transmission Charging) - Disassemble................1128
Oil Filter and Base (Transmission Charging) - Assemble................1132
Tire and Rim (Rear) - Remove................1136
Tire and Rim (Rear) - Install................1143
Final Drive; Brake and Wheel (Rear) - Remove................1149
Final Drive; Brake and Wheel (Rear) - Disassemble - Standard................1154
Final Drive; Brake and Wheel (Rear) - Assemble - Standard................1174
Final Drive; Brake and Wheel (Rear) - Install................1205
Traction Control System (TCS) Wheel Speed Ring - Remove and Install................1209
Axle Shaft - Remove................1213
Axle Shaft - Install................1220
Flow Control and Relief Valve (Rear Axle Oil) - Remove................1225
Flow Control and Relief Valve (Rear Axle Oil) - Disassemble................1228
Flow Control and Relief Valve (Rear Axle Oil) - Assemble................1231
Flow Control and Relief Valve (Rear Axle Oil) - Install................1234
Differential Oil Level Sight Gauge - Remove and Install................1236
Differential and Bevel Gear - Remove................1239
Differential and Bevel Gear - Disassemble................1243
Differential and Bevel Gear - Assemble................1257
Differential and Bevel Gear - Install................1295
Lateral Control Rod (Rear Axle Housing) - Remove................1300
Lateral Control Rod (Rear Axle Housing) - Disassemble................1305
Lateral Control Rod (Rear Axle Housing) - Assemble................1307
Lateral Control Rod (Rear Axle Housing) - Install................1309
Final Drive - Remove................1313
Final Drive - Disassemble................1319
Final Drive - Assemble................1324
Final Drive - Install................1333
Transmission; Rear Axle Housing; and Wheel Group - Remove................1338
Transmission; Rear Axle Housing; and Wheel Group - Install................1349
SENR1463 - Disassembly and Assembly (793C Off-Highway Truck Machine Systems)................1359
Metering Pump (Steering) - Remove................1368
Metering Pump (Steering) - Disassemble................1371
Metering Pump (Steering) - Assemble................1376
Metering Pump (Steering) - Install................1380
Check Valve (Air Tank) - Disassemble................1383
Check Valve (Air Tank) - Assemble................1385
Double Check Valve (Front Air over Hydraulic Cylinder) - Remove and Install................1387
Double Check Valve (Rear Air over Hydraulic Cylinder) - Remove and Install................1390
Double Check Valve (Retarder Control) - Remove and Install................1392
Double Check Valve (Service and Secondary Brake) - Remove and Install................1395
Double Check Valve - Disassemble................1397
Double Check Valve - Assemble................1399
Brake Light Pressure Switch - Remove and Install................1401
Air Control Valve (Secondary Brake) - Remove and Install................1403
Air Control Valve (Secondary Brake) - Disassemble................1406
Air Control Valve (Secondary Brake) - Assemble................1408
Air Control Valve (Service Brake) - Remove and Install................1411
Air Control Valve (Service Brake) - Disassemble................1414
Air Control Valve (Service Brake) - Assemble................1418
Air Pressure Control Valve (Service Brake) - Remove and Install................1421
Pedal (Service Brake) - Remove and Install................1425
Electronic Control (Automatic Retarder) - Remove and Install................1428
Traction Electronic Control Module - Remove and Install................1430
Switch (Traction Control System) - Remove and Install................1432
Resistor (Cab Fan Speed) - Remove and Install................1436
Heater Control Valve - Remove................1440
Heater Control Valve - Install................1443
Thermostat Switch (Cab) - Remove and Install................1445
Instrument Panel (Quad Gauge_Speed_Tachometer) - Remove and Install................1447
Electronic Control (VIMS Keypad) - Remove and Install................1450
Rocker Switch (Backup Light) - Remove and Install................1453
Toggle Switch (Brake Retraction) - Remove and Install................1457
Parking Brake Control Valve - Remove and Install................1461
Parking Brake Control Valve - Disassemble................1465
Parking Brake Control Valve - Assemble................1468
Service Meter - Remove and Install................1471
Rocker Switch (Throttle Backup) - Remove and Install................1475
Transmission Control (Select Lever) - Remove and Install................1479
Transmission Control (Select Lever) - Disassemble................1482
Transmission Control (Select Lever) - Assemble................1484
Dimmer Switch - Remove and Install................1487
Wiper Control Valve - Remove and Install................1490
Window Wiper Motor - Disassemble................1494
Window Wiper Motor - Assemble................1498
Wiper Shaft - Remove and Install................1502
Horn Valve - Remove and Install................1505
Resistor - Remove and Install................1508
Suspension Seat - Remove and Install................1510
Rocker Switch (Ether Starting Aid) - Remove and Install................1512
Electronic Control (Body Position and Transmission) - Remove and Install................1516
Switch Assembly (Main Power) - Remove and Install................1519
Transmission Electronic Control Module - Remove and Install................1522
Truck Body and Canopy - Remove................1525
Truck Body and Canopy - Install................1532
Truck Body Retaining Cable - Remove and Install................1539
Steering Tank and Filter - Remove................1543
Steering Tank and Filter - Disassemble................1546
Steering Tank and Filter - Assemble................1551
Steering Tank and Filter - Install................1556
Oil Filter (Steering) - Remove and Install................1558
Piston Pump (Steering) - Remove................1560
Piston Pump (Steering) - Disassemble................1563
Pump Control Valve - Disassemble................1574
Pump Control Valve - Assemble................1581
Piston Pump (Steering) - Assemble................1587
Piston Pump (Steering) - Install................1602
Accumulator (Steering) - Remove................1604
Accumulator (Steering) - Disassemble................1606
Accumulator (Steering) - Assemble................1614
Accumulator (Steering) - Install................1622
Accumulator Charging Valve (Steering) - Remove................1624
Accumulator Charging Valve (Steering) - Disassemble................1626
Accumulator Charging Valve (Steering) - Assemble................1632
Accumulator Charging Valve (Steering) - Install................1639
Solenoid Valve (Steering Accumulator) - Remove and Install................1640
Steering Control Valve - Remove................1643
Steering Control Valve - Disassemble................1646
Steering Control Valve - Assemble................1660
Steering Control Valve - Install................1672
Relief Valve (Steering Accumulator) - Remove and Install................1675
Relief Valve (Steering) - Remove................1678
Relief Valve (Steering) - Disassemble................1681
Relief Valve (Steering) - Assemble................1685
Relief Valve (Steering) - Install................1689
Center Arm (Steering) - Remove and Install................1691
Steering Cylinder - Remove and Install................1697
Steering Link - Remove................1707
Steering Link - Disassemble................1715
Steering Link - Assemble................1717
Steering Link - Install................1719
Front Wheel Bearings - Remove................1722
Front Wheel Bearings - Install................1729
Duo-Cone Seals - Install................1741
Tire and Rim (Front) - Remove and Install................1775
Air Tanks (Brake) - Purge................1781
Air Tank (Primary) - Remove and Install................1784
Air Tank (Secondary) - Remove and Install................1787
Air Relief Valve (Air Tank) - Remove and Install................1792
Check Valve (Primary Air Tank) - Remove and Install................1794
Check Valve (Secondary Air Tank) - Remove and Install................1796
Relay Valve (Air Start) - Remove................1799
Relay Valve (Air Start) - Disassemble................1801
Relay Valve (Air Start) - Assemble................1803
Relay Valve (Air Start) - Install................1805
Solenoid Valve (Air Start) - Remove and Install................1806
Air Horn - Remove and Install................1808
Air Dryer - Remove and Install................1810
Air_Hydraulic Cylinder (Front Brake) - Remove................1813
Air_Hydraulic Cylinder (Rear Brake) - Remove................1816
Air_Hydraulic Cylinder (Brake) - Disassemble................1819
Air_Hydraulic Cylinder (Brake) - Assemble................1825
Air_Hydraulic Cylinder (Rear Brake) - Install................1832
Air_Hydraulic Cylinder (Front Brake) - Install................1834
Slack Adjuster (Front) - Remove................1836
Slack Adjuster (Rear) - Remove................1838
Slack Adjuster - Disassemble................1840
Slack Adjuster - Assemble................1843
Slack Adjuster (Front) - Install................1846
Slack Adjuster (Rear) - Install................1847
Brake Oil Tank - Remove................1848
Brake Oil Tank - Disassemble................1850
Brake Oil Tank - Assemble................1851
Brake Oil Tank - Install................1852
Relay Valve (Brake) - Remove................1854
Relay Valve (Brake) - Disassemble................1857
Relay Valve (Brake) - Assemble................1860
Relay Valve (Brake) - Install................1863
Hoist and Brake Hydraulic Breather - Remove and Install................1865
Gear Pump (Brake Release and Oil Cooling) - Remove................1867
Gear Pump (Brake Release and Oil Cooling) - Disassemble................1871
Gear Pump (Brake Release and Oil Cooling) - Assemble................1881
Gear Pump (Brake Release and Oil Cooling) - Install................1895
Oil Cooler Core (Front Brake) - Remove................1897
Oil Cooler Core (Front Brake) - Install................1901
Diverter Valve (Front Brake Oil Cooler) - Remove................1904
Diverter Valve (Front Brake Oil Cooler) - Disassemble................1907
Diverter Valve (Front Brake Oil Cooler) - Assemble................1910
Diverter Valve (Front Brake Oil Cooler) - Install................1913
Oil Filter (Front Brake Oil Cooler) - Remove................1915
Oil Filter (Front Brake Oil Cooler) - Disassemble................1917
Oil Filter (Front Brake Oil Cooler) - Assemble................1920
Oil Filter (Front Brake Oil Cooler) - Install................1923
Service and Parking Brake (Front) - Remove - Standard Wheel................1924
Service and Parking Brake (Front) - Disassemble................1927
Service and Parking Brake (Front) - Assemble................1937
Service and Parking Brake (Front) - Install - Standard Wheel................1951
Wheel; Brake and Suspension (Front) - Remove................1953
Wheel; Brake and Suspension (Front) - Install................1963
Brake Valve (Parking Brake Release) - Remove................1974
Brake Valve (Parking Brake Release) - Disassemble................1977
Brake Valve (Parking Brake Release) - Assemble................1981
Brake Valve (Parking Brake Release) - Install................1985
Electric Drive Pump (Parking Brake Release) - Remove................1987
Electric Drive Pump (Parking Brake Release) - Disassemble................1990
Electric Drive Pump (Parking Brake Release) - Assemble................1995
Electric Drive Pump (Parking Brake Release) - Install................1999
Oil Filter (Parking Brake Release) - Remove................2001
Oil Filter (Parking Brake Release) - Disassemble................2003
Oil Filter (Parking Brake Release) - Assemble................2005
Oil Filter (Parking Brake Release) - Install................2008
Oil Screen (Rear Brake Cooler) - Remove................2009
Oil Screen (Rear Brake Cooler) - Disassemble................2011
Oil Screen (Rear Brake Cooler) - Assemble................2012
Oil Screen (Rear Brake Cooler) - Install................2013
Oil Cooler Core (Rear Brake) - Remove................2014
Oil Cooler Core (Rear Brake) - Install................2018
Relief Valve (Rear Brake Cooler) - Remove................2021
Relief Valve (Rear Brake Cooler) - Disassemble................2023
Relief Valve (Rear Brake Cooler) - Assemble................2024
Relief Valve (Rear Brake Cooler) - Install................2026
Service and Parking Brake (Rear) - Remove................2028
Service and Parking Brake (Rear) - Disassemble................2032
Service and Parking Brake (Rear) - Assemble................2041
Service and Parking Brake (Rear) - Install................2053
Air Control Valve (Manual Retarder) - Remove................2057
Air Control Valve (Manual Retarder) - Disassemble................2059
Air Control Valve (Manual Retarder) - Assemble................2062
Air Control Valve (Manual Retarder) - Install................2065
Brake Valve (Automatic Retarder) - Remove................2067
Brake Valve (Automatic Retarder) - Disassemble................2069
Brake Valve (Automatic Retarder) - Assemble................2072
Brake Valve (Automatic Retarder) - Install................2074
Pressure Protection Valve (Air System) - Remove and Install................2076
Pressure Protection Valve (Brake Air System) - Remove and Install................2080
Pressure Switch (Manual Retarder) - Remove and Install................2082
Pressure Switch (Automatic Retarder Control) - Remove and Install................2084
Pressure Switch (Service Brake and Retarder) - Remove and Install................2086
Traction Control Valve - Remove................2088
Traction Control Valve - Disassemble................2091
Traction Control Valve - Assemble................2100
Traction Control Valve - Install................2111
Front Suspension (Cylinder) - Remove................2113
Front Suspension (Cylinder) - Disassemble................2119
Front Suspension (Cylinder) - Assemble................2125
Front Suspension (Cylinder) - Install................2136
Rear Suspension (Cylinder) - Remove................2140
Rear Suspension (Cylinder) - Disassemble................2145
Rear Suspension (Cylinder) - Assemble................2152
Rear Suspension (Cylinder) - Install................2164
Valve (Suspension Cylinder Charging) - Remove................2168
Valve (Suspension Cylinder Charging) - Disassemble................2171
Valve (Suspension Cylinder Charging) - Assemble................2174
Valve (Suspension Cylinder Charging) - Install................2177
Hydraulic Tank - Remove................2179
Hydraulic Tank - Disassemble................2183
Hydraulic Tank - Assemble................2194
Hydraulic Tank - Install................2206
Hydraulic Tank Guard - Remove and Install................2210
Gear Pump (Hoist) - Remove................2212
Gear Pump (Hoist) - Disassemble................2214
Gear Pump (Hoist) - Assemble................2223
Gear Pump (Hoist) - Install................2233
Pump Drive Shaft (Hydraulic) - Remove and Install................2235
Drive Shaft Guard - Remove and Install................2237
Pump Drive - Remove................2240
Pump Drive - Disassemble................2243
Pump Drive - Assemble................2251
Pump Drive - Install................2270
Manifold (Hoist) - Remove................2272
Manifold (Hoist) - Disassemble................2274
Manifold (Hoist) - Assemble................2276
Manifold (Hoist) - Install................2278
Control Valve (Hoist) - Remove................2280
Control Valve (Hoist) - Disassemble................2285
Control Valve (Hoist) - Assemble................2299
Control Valve (Hoist) - Install................2313
Hoist Cylinder - Remove and Install................2318
Screen (Hoist) - Remove and Install................2325
Screen (Hoist Pump) - Remove................2329
Screen (Hoist Pump) - Disassemble................2332
Screen (Hoist Pump) - Assemble................2334
Screen (Hoist Pump) - Install................2336
Cab - Remove................2338
Cab - Install................2351
Hood Panels (Front and Rear) - Remove and Install................2363
Plate (Cab Front) - Remove and Install................2367
Cover (Cab Rear) - Remove and Install................2369
VIMS Message Center Module - Remove and Install................2372
VIDS_VIMS Main Module - Remove and Install................2375
VIDS_VIMS Interface Module - Remove and Install................2377
Start Switch (Key) - Remove and Install................2380
Evaporator Coil - Remove and Install................2384
Heater Coil - Remove and Install................2387
Blower Motor (Air Conditioner; Heater) - Remove................2390
Blower Motor (Air Conditioner; Heater) - Install................2393
Rotary Switch (Fan Speed) - Remove and Install................2396
Window Wiper Motor - Remove and Install................2400
Backup Alarm - Remove and Install................2402
Relay Assembly - Remove and Install................2404
Resistor Assembly - Remove and Install................2406
Hoist Electronic Control - Remove and Install................2408
Electronic Flasher Assembly - Remove and Install................2410
Electronic Control (Engine Shutdown) - Remove and Install................2413
Engine Shutdown Switch and Disconnect Switch - Remove and Install................2416
Lighter and Power Receptacle - Remove and Install................2419
Lubrication Pump (Automatic) - Remove................2423
Lubrication Pump (Automatic) - Disassemble................2424
Lubrication Pump (Automatic) - Assemble................2428
Lubrication Pump (Automatic) - Install................2432
Fuel Tank - Remove................2433
Fuel Tank - Install................2439
Fuel Level Sensor - Remove and Install................2445
Ladder - Remove and Install................2450
SENR1480 - Schematic (793C Off-Highway Truck Electrical System;146-8805-01(For Serial Numbers 4AR218-UP))................2453
Features................2453
Cover Page................2455
Information................0
Component Location................2456
Connector Location................2457
Schematic................2458
Machine Views................0
Machine Harness Connector and Component Locations................2459
Rear Component (Area E) Rear View................2460
Rear Component Side Wall (Area J) Right Side View................2461
UENR2531 - Schematic (Off-Highway Truck CAT Detect Object Detection Wash Electrical System; 376-2331)................2462
UENR2635 - Schematic (Off-Highway Truck CAT Detect Object Detection Electrical System; 382-0969)................2464
Caterpillar 793C Off-Highway Truck/Tractor Repair Service Manual
