MODEL 330 OPERATOR'S MANUAL - Peterbilt Motors Company

Brake System
WARNING! Do not work on the brake system
without the parking brake set and wheels
chocked securely. If the vehicle is not secured to
prevent uncontrolled vehicle movement, it could
roll and cause serious personal injury or damage
to the vehicle.
• Use wood blocks (4 in. X 4 in. or larger) against the
front and rear surfaces of the tires. Be sure the vehicle
cannot move.
Lubrication
Cam-actuated brake components such as anchor pins and
brake camshafts are subjected to high temperatures, and
must be lubricated with nonmelting, water resistant brake
grease meeting R–S Specification 0–616 (NLGI–Grade 1).
• Lubricate according to Table 2, “Recommended Maintenance
Intervals,” Page 121.
WARNING! Do not apply too much lubricant to
brake components—lubricate sparingly. Excessive
amounts of lubricant could contaminate
brake linings, which could reduce brake effectiveness
and cause an accident.
Brake and Slack Adjuster Lubrication
Preventive Maintenance
According to the interval, pressure lubricate the slack
adjuster and brake camshaft (bracket/tube). Two grease fittings
are provided for both the slack adjuster and camshaft
bracket/tube.
• Use standard chassis lubricant (meeting No. 1 grade
high temperature, water proof specifications).
• Do not use moly-disulfide loaded grease or oil (they may
shorten the service life of the slack adjuster).
• Do not use pressure-release grease fittings when lubricating
the slack adjuster.
Checks and Adjustments
All vehicle operators should check the brakes regularly.
Always adjust the brakes when they are cool.
• Park the vehicle on a level surface and block the wheels
before attempting any brake checks or adjustments.
– 154 – PB1318 3/01 Model 330