Peterbilt Medium Duty Truck Owner's Manual - Peterbilt Motors

STARTING AND OPERATING THE VEHICLE
WARNING! Do not move of the fifth wheel
while the tractor-trailer is in motion. Your load
could shift suddenly, causing you to lose control
of the vehicle, which can result in a accident
causing death or personal injury. Never
operate the vehicle with the switch in the
UNLOCK position. Always inspect the fifth
wheel after you lock the switch to be sure the
fifth wheel lock is engaged.
DRIVING TIPS AND TECHNIQUES
Fifth Wheel Lubrication
• Frequently operate and lubricate movable or sliding
fifth wheels to prevent corrosion.
CAUTION: Both the fifth wheel plate and the
slide tracks (if a slider) should be cleaned and
lubricated periodically to ensure smooth turning
and sliding action. Failure to keep these
surfaces lubricated can lead to frame or driveline
damage.
See page 219 for maintenance information.
Medium Duty (R05/09) Y53-6027 – 139 –