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Peterbilt Medium Duty Truck Owner's Manual - Peterbilt Motors

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CONTROLS AND DISPLAY<br />

DASH- AND DOOR-MOUNTED FEATURES<br />

the fifth wheel to various positions to adjust weight distribution.<br />

There is a guard over this switch to protect you<br />

against accidentally activating or releasing the lock.<br />

Parking Brake Valve and Trailer Air Supply<br />

Valve<br />

Before you leave the cab, apply all parking brakes.<br />

- for vehicles with air brakes:<br />

1. Apply all parking brakes. Pull out the Yellow Parking<br />

Brake Control knob (1) located on the dash. In tractors,<br />

the Red (octagon-shaped) Trailer Air Supply<br />

Control knob (2) will automatically pop out.<br />

PULL<br />

TO APPLY<br />

PARKING<br />

BRAKE<br />

PUSH TO<br />

RELEASE<br />

02391-1<br />

Full <strong>Truck</strong> Parking Brake Valve<br />

WARNING! Do not leave the cab without<br />

applying the parking brake. The truck could<br />

roll and cause an accident involving death or<br />

personal injury. Always apply the parking<br />

brake before you leave the cab.<br />

<strong>Medium</strong> <strong>Duty</strong> (R05/09) Y53-6027 – 63 –

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