• 25 Clutch44
• 26 Manual transmission10
• 27 Automatic transmission88
• 29 Pedal assembly13
• 31 Frame, trailer operation45
• 32 Suspension24
• 33 Front axle3
• 35 Rear axle1
• 40 Wheels, chassis alignment check38
• 41 Propeller shaft4
• 42 Brakes - hydraulic and mechanical systems11
• 43 Brakes - pneumatic system and auxiliary brakes32
• 46 Steering18
• 54 Electrical system, equipment and instruments5
• 55 Auxiliary drive systems, hydraulic and linkage systems3
• 57 Central lubrication system2