OPERATOR'S MANUAL

CONTROLS AND DISPLAY DASH- AND DOOR-MOUNTED FEATURES
Medium Duty
(R05/09) Y53-6027 – 63 –
the fifth wheel to various positions to adjust weight distri-
bution. There is a guard over this switch to protect you
against accidentally activating or releasing the lock.
Parking Brake Valve and Trailer Air Supply
Valve
Before you leave the cab, apply all parking brakes.
- for vehicles with air brakes:
1. Apply all parking brakes. Pull out the
Yellow Parking
Brake Control knob (1) located on the dash. In trac-
tors, the Red (octagon-shaped) Trailer Air Supply
Control knob (2) will automatically pop out.
WARNING! Do not leave the cab without
applying the parking brake. The truck could
roll and cause an accident involving death or
personal injury. Always apply the parking
brake before you leave the cab.
Full Truck Parking Brake Valve
PARKING
BRAKE
PULL
TO APPLY
PUSH TO
RELEASE
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