• 27 Automatic transmission2
• 29 Pedal assembly1
• 31 Frame, trailer operation1
• 32 Suspension5
• 33 Front axle8
• 35 Rear axle9
• 40 Wheels, chassis alignment check8
• 42 Brakes - hydraulic and mechanical systems12
• 43 Brakes - pneumatic system and auxiliary brakes2
• 46 Steering6
• 54 Electrical system, equipment and instruments45