- 26 Manual transmission7
- 27 Automatic transmission7
- 29 Pedal assembly1
- 31 Frame, trailer operation1
- 32 Suspension6
- 33 Front axle13
- 35 Rear axle10
- 40 Wheels, chassis alignment check6
- 42 Brakes - hydraulic and mechanical systems15
- 43 Brakes - pneumatic system and auxiliary brakes9
- 46 Steering6
- 54 Electrical system, equipment and instruments103