Peterbilt Medium Duty Truck Owner's Manual - Peterbilt Motors
Peterbilt Medium Duty Truck Owner's Manual - Peterbilt Motors Peterbilt Medium Duty Truck Owner's Manual - Peterbilt Motors
DRIVING TIPS AND TECHNIQUES STARTING AND OPERATING THE VEHICLE WARNING! To prevent possible death, injury and damage to property, ensure that a vehicle is parked and the wheels chocked before beginning this procedure. CAUTION: Completing this procedure will enable you to safely reach the nearest authorized Peterbilt repair facility to have ride height and pinion angle reset using the proper equipment and technique. Do this as soon as possible to avoid potential driveline damage. NOTE: Suitable wheel chocks are at a minimum an 18-inch (46 cm) long 4x4. Ride Height Measurement (Location for Tandem Axles Shown) Proprietary Rear Ride Height [inches (mm)]* Air Suspension Single Drive Tandem Drive Air Trac 11.00 (279) 11.00 (279) Low Air Leaf 6.50 (165) 8.50 (216) *These values are for a fully laden vehicle Follow this procedure to temporarily set ride height. 1. Ensure that the air supply and delivery plumbing of the height control valve is consistent with the illustration. NOTE: At least one of the mounting holes in the height control valve bracket will be slotted to permit rotating the valve. NOTE: On dual-valve systems, begin with the LH valve on the next step. 2. Loosen the fasteners mounting a height control valve to its bracket. – 134 – Y53-6027 Medium Duty (R05/09)
STARTING AND OPERATING THE VEHICLE WARNING! Be extremely careful when deflating the air springs. The rear of the vehicle will drop about 3-1/2 inches (88 mm) when the air springs are deflated. Make sure that no persons that could be killed or injured or any objects that could be damaged are under the vehicle. To minimize the risk of damage death or injury, do not use the dump valve to deflate the air springs. Operate the height control valve(s) manually to ensure positive control of air spring deflation. To minimize risk of death or injury, keep away from air springs as they are being inflated. DRIVING TIPS AND TECHNIQUES ALIGNMENT PIN OR DOWEL CONTROL ARM LINK BOLT FROM DUMP VALVE SWITCH FORWARD 02941A Typical Height Control Valve (Top View) Medium Duty (R05/09) Y53-6027 – 135 –
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DRIVING TIPS AND TECHNIQUES<br />
STARTING AND OPERATING THE VEHICLE<br />
WARNING! To prevent possible death, injury<br />
and damage to property, ensure that a vehicle<br />
is parked and the wheels chocked before<br />
beginning this procedure.<br />
CAUTION: Completing this procedure will<br />
enable you to safely reach the nearest authorized<br />
<strong>Peterbilt</strong> repair facility to have ride<br />
height and pinion angle reset using the proper<br />
equipment and technique. Do this as soon as<br />
possible to avoid potential driveline damage.<br />
NOTE: Suitable wheel chocks are at a minimum<br />
an 18-inch (46 cm) long 4x4.<br />
Ride Height Measurement (Location for Tandem Axles Shown)<br />
Proprietary Rear Ride Height [inches (mm)]*<br />
Air Suspension Single Drive Tandem Drive<br />
Air Trac 11.00 (279) 11.00 (279)<br />
Low Air Leaf 6.50 (165) 8.50 (216)<br />
*These values are for a fully laden vehicle<br />
Follow this procedure to temporarily set ride height.<br />
1. Ensure that the air supply and delivery plumbing of<br />
the height control valve is consistent with the illustration.<br />
NOTE: At least one of the mounting holes in the<br />
height control valve bracket will be slotted to permit<br />
rotating the valve.<br />
NOTE: On dual-valve systems, begin with the LH<br />
valve on the next step.<br />
2. Loosen the fasteners mounting a height control valve to<br />
its bracket.<br />
– 134 – Y53-6027 <strong>Medium</strong> <strong>Duty</strong> (R05/09)