OPERATOR'S MANUAL

Table Of Contents
Operating Instructions Using the Brake System
Model 330 PB1318 3/01
– 91 –
CAUTION: No indication will be given via the
dashboard warning lights or buzzer if tires of the
wrong size are installed on your vehicle. See the
following warning for consequences of tires of
the wrong size.
For proper ABS operation all tire sizes must be within the
appropriate range (see
page 182
). A change of tire size may
require that the ABS ECU be changed based on the listed
range of compatible tire revolutions per mile (RPM). Consult
your Peterbilt dealer before using a different tire and/or wheel
size.
Parking Brake Burnishing
This procedure is recommended for new vehicles where less
lever actuation force is required. This procedure is manda-
tory whenever the driveline brake shoes or brake drum are
replaced.
WARNING! If a new drum or new brake shoes
are installed, the driveline brake must be bur-
nished. Failure to properly burnish the parking
brake before putting it in service could result in
an inoperative parking brake, possible vehicle
rollaway, and serious personal injury or dam-
age to the vehicle.
1. Drive the vehicle at 15 mph (24 km/h) in a low gear
(first or second) on a dry, hard road surface.
2. Apply the parking brake lever with a moderate force
(approximately 40 pounds) until the vehicle is
brought to a stop. Do not allow the wheels to lock up.
!
LOW
WATER
BRAKE
MIRROR
HEAT
WATER
OIL
ABS WARNING INDICATOR
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