Exhaust Brake (If Equipped) - Ford F-750 Owner's Manual

Driving

EXHAUST BRAKE (IF EQUIPPED)

Note: The exhaust brake is a
retarding device intended to help
control vehicle speed; it is not a
vehicle stopping device.
An exhaust brake is an optional
auxiliary braking system that assists,
but does not replace, the primary
service brake system. An on-off
switch on the instrument panel, in
combination with the accelerator
and clutch pedal switches, allows the operator to make maximum use of
the exhaust brake in the following conditions:
• off-highway driving
• mountain driving
• heavy traffic
• high speed highway driving
Note: The exhaust brake should be turned off when the engine is left
idling for an extended period of time (longer than three minutes).
The exhaust brake is a butterfly
type valve mounted in the exhaust
pipe. When the operator's foot is not
on the accelerator pedal and the
exhaust brake switch is in the ON
position, an air cylinder shuts the
butterfly valve, restricting the flow
of exhaust gases and retarding the
engine. This retarding action is
carried through the engine and drivetrain, slowing the vehicle and
reducing the need for frequent service brake applications.
Exhaust brakes are not intended for use as the primary braking system
during vehicle operation.
108
2007 F-650/750 (f67)
Supplement (supplement)
Canadian_French (fr_can)