02909
PART 7: STARTING & OPERATING THE VEHICLE BRAKE SAFETY AND EMERGENCY
(R10/06) Y53-6007 – 99 –
Red / Yellow Controls
WARNING!
• Do not leave the cab without applying the
parking brake. The truck could roll and cause
an injury accident. Always apply the parking
brake before you leave the cab.
• Stopping with the parking brake controls can
cause a sudden wheel lock-up, loss of control,
or can cause you to be overtaken by following
vehicles. You could be severely injured. Never
pull out the parking brake valve while the vehi
-
cle is moving.
• Do not use the trailer hand brake or service
brakes to park and hold an unattended vehi
-
cle—use the parking brakes. Because service
brakes work with air pressure, these brakes
could slowly release. Your vehicle could roll,
causing a serious accident. Someone could be
hurt or killed. Never rely on the service brakes
to hold a parked vehicle.
• Never drive your vehicle with the parking
brake applied. Always release the parking
brakes prior to moving the vehicle. Failure to
disengage the parking brakes prior to moving
your vehicle could result in excessive heat
build-up in the brake system, resulting in a
fire.
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