NOTE: Operation of the Pacbrake could be af-
fected by starting the engine and idling for short
periods of time. During a cold engine start-up,
moisture occurs in the engine and the exhaust
system that creates a corrosion hazard. The
brake housing may trap water in the valve shaft
bore causing corrosion, resulting in an improper
or non-functioning brake. If it is necessary to
periodically start the engine, reach normal oper-
ating temperatures before shutting down the en-
gine.
1
2
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03/20/2003
1.
Air Cylinder
2.
Pacbrake
Fig. 3, Pacbrake Exhaust Brake Lube Point Locations
Engine
01
School Bus Chassis Maintenance Manual, June 2003
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