Specifications

DRIVING TIPS AND TECHNIQUES STARTING AND OPERATING THE VEHICLE
– 132 – Y53-6008A
Medium Duty (R05/09)
WARNING! Be extremely careful when deflat-
ing 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 per-
sons or objects that could be injured or dam-
aged are under the vehicle.
To minimize the risk of damage 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 injury, keep away from air
springs as they are being inflated.
Typical Height Control Valve (Top View)
ALIGNMENT PIN OR DOWEL CONTROL ARM LINK BOLT
FORWARD
FROM DUMP VALVE SWITCH
02941A