Cat Challenger 65D, 75D, 85D Tractors Training Manual (SESV1690)

Cat Challenger 65D, 75D, 85D Tractors Training Manual (SESV1690)

Cat Challenger 65D, 75D, 85D Tractors Index:

INTRODUCTION …………………………………………………………………………………………………..5
Major Options ………………………………………………………………………………………………….10
Design Characteristics ……………………………………………………………………………………….11
Major Component Locations ………………………………………………………………………………12
Power Flow ……………………………………………………………………………………………………..13
CHALLENGER AGRICULTURAL TRACTOR ENGINES ………………………………………15
Specifications……………………………………………………………………………………………………16
Component Locations ………………………………………………………………………………………..17
Challenger Engine Diagnostics …………………………………………………………………………..27
POWER TRAIN ……………………………………………………………………………………………………28
Transmission ……………………………………………………………………………………………………30
Parking Brake …………………………………………………………………………………………………..35
Final Drives ……………………………………………………………………………………………………..38
Final Drive Oil Level Indicator and Fill Tube ………………………………………………………39
Drive Wheels …………………………………………………………………………………………………..40
Machine Towing ………………………………………………………………………………………………41
Power Takeoff (PTO) Drop Box …………………………………………………………………………42
TRANSMISSION HYDRAULIC SYSTEM ……………………………………………………………..45
DIFFERENTIAL AND PTO LUBE HYDRAULIC SYSTEM ……………………………………54
BRAKE SYSTEM …………………………………………………………………………………………………59
Brake Master Cylinder and Boost Group ……………………………………………………………..59
Brake Booster Hydraulic (Charge) Pump …………………………………………………………….60
Master Cylinder and Brake Boost Hydraulic System …………………………………………….61
Service Brakes …………………………………………………………………………………………………66
MOBIL-TRAC SYSTEM ……………………………………………………………………………………….67
Idler Axle ………………………………………………………………………………………………………..69
Tension Cylinders …………………………………………………………………………………………….71
Idlers ………………………………………………………………………………………………………………73
Suspension ………………………………………………………………………………………………………76
Mobil-trac System Belts ……………………………………………………………………………………78
IMPLEMENT HYDRAULIC SYSTEM …………………………………………………………………..79
Implement Hydraulic System Schematic ……………………………………………………………..82
Implement Hydraulic Pump ……………………………………………………………………………….83
Implement Hydraulic Pump Control Valve …………………………………………………………..84
Implement Control Valves …………………………………………………………………………………91
Inlet and Return Manifold ………………………………………………………………………………….98
Implement Controls ………………………………………………………………………………………….99
THREE-POINT HITCH ……………………………………………………………………………………….102
Three-Point Hitch Hydraulic System …………………………………………………………………103
Three-Point Hitch Electronic Control System …………………………………………………….110
Three-Point Hitch Electronic Components …………………………………………………………112
Three-Point Hitch Calibration …………………………………………………………………………..113
Drawbar …………………………………………………………………………………………………………114
STEERING HYDRAULIC SYSTEM …………………………………………………………………….115
Steering Pump ………………………………………………………………………………………………..117
Steering Control Group ……………………………………………………………………………………118
Pilot Valves ……………………………………………………………………………………………………119
Diverter Valve ………………………………………………………………………………………………..121
Multi-Function Valves …………………………………………………………………………………….123
Steering Motor ……………………………………………………………………………………………….125
Flushing Valve ……………………………………………………………………………………………….126
Steering System Cooler ……………………………………………………………………………………127
Steering System Filters ……………………………………………………………………………………128
OPERATOR’S STATION ………………………………………………………………………………………129
Machine Performance Panel …………………………………………………………………………….135
Normal Mode …………………………………………………………………………………………………137
Calibration Mode ……………………………………………………………………………………………139
Operator Control Levers ………………………………………………………………………………….142
Three-Point Hitch Controls ………………………………………………………………………………143
Electrical Connections …………………………………………………………………………………….144
Air Conditioning and Heating System ……………………………………………………………….145
Operator’s Seat ……………………………………………………………………………………………….146
CONCLUSION ……………………………………………………………………………………………………147
SLIDE LIST…………………………………………………………………………………………………………148

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