- 25 Clutch13
- 26 Manual transmission82
- 29 Pedal assembly2
- 31 Frame, trailer operation1
- 32 Suspension5
- 33 Front axle55
- 35 Rear axle86
- 40 Wheels, chassis alignment check5
- 41 Propeller shaft2
- 42 Brakes - hydraulic and mechanical systems50
- 43 Brakes - pneumatic system and auxiliary brakes1
- 46 Steering84
- 54 Electrical system, equipment and instruments8