- 25 Clutch74
- 26 Manual transmission266
- 27 Automatic transmission7
- 29 Pedal assembly27
- 31 Frame, trailer operation51
- 32 Suspension52
- 33 Front axle64
- 35 Rear axle265
- 40 Wheels, chassis alignment check46
- 41 Propeller shaft18
- 42 Brakes - hydraulic and mechanical systems171
- 43 Brakes - pneumatic system and auxiliary brakes40
- 46 Steering111
- 54 Electrical system, equipment and instruments39
- 55 Auxiliary drive systems, hydraulic and linkage systems2
- 57 Central lubrication system2