• 25 Clutch108
• 26 Manual transmission397
• 27 Automatic transmission6
• 29 Pedal assembly11
• 31 Frame, trailer operation44
• 32 Suspension37
• 33 Front axle53
• 35 Rear axle152
• 40 Wheels, chassis alignment check32
• 41 Propeller shaft15
• 42 Brakes - hydraulic and mechanical systems29
• 43 Brakes - pneumatic system and auxiliary brakes34
• 46 Steering99
• 54 Electrical system, equipment and instruments14
• 55 Auxiliary drive systems, hydraulic and linkage systems1
• 57 Central lubrication system2