The service manual has chapters and instructions covering service, repair, overhauling, etc:
Description, Operations
Specifications
Lubrication and Periodic Service
Engine Tune Up and Tractor Adjustment
Engine (Gasoline)
Engine (Diesel)
Governor and Linkage
Engine Lubrication Systems
Engine Cooling System
Ignition and Electrical Systems
Gasoline Fuel Systems
Diesel Fuel Systems
Engine Clutch (Constant Mesh Transmission)
Clutch Disconnect and Clutch Pedal (H-L-R Transmission)
Transmission and Ring Gear (Constant Mesh)
Transmission and Ring Gear (H-L-R)
Power Take Off, Auxiliary Pump Drive, and Winch Drive
Final Drives, Steering Clutches, and Brakes
Series 20 Winch
Wheels, Tires, and Weights
Track System
Hydraulic Systems
Three Point Hitch and Drawbars
Troubleshooting
and More
Parts/Assembly Manual Has:
Exploded Parts Views
Parts Numbers
Full Numerical Parts Index