• 25 Clutch101
• 26 Manual transmission10
• 27 Automatic transmission3
• 29 Pedal assembly8
• 31 Frame, trailer operation44
• 32 Suspension33
• 33 Front axle2
• 40 Wheels, chassis alignment check31
• 41 Propeller shaft3
• 42 Brakes - hydraulic and mechanical systems12
• 43 Brakes - pneumatic system and auxiliary brakes32
• 46 Steering18
• 54 Electrical system, equipment and instruments11
• 55 Auxiliary drive systems, hydraulic and linkage systems1
• 57 Central lubrication system2