- 25 Clutch17
- 26 Manual transmission30
- 29 Pedal assembly1
- 31 Frame, trailer operation1
- 32 Suspension5
- 33 Front axle56
- 35 Rear axle90
- 40 Wheels, chassis alignment check7
- 41 Propeller shaft2
- 42 Brakes - hydraulic and mechanical systems51
- 43 Brakes - pneumatic system and auxiliary brakes1
- 46 Steering85
- 54 Electrical system, equipment and instruments7