Brakes Driving
– 68 –
exhaust brake only helps the
service brakes by using pres-
sure to slow the drivetrain. Use
the service brakes for quick
stops.
Exhaust Brake Operation
With the exhaust brake switch ON, the
engine exhaust brake automatically
creates its braking effect when you
remove your foot from the accelerator
pedal and all other required conditions
are met (see below).
The brake switch is located on the
switch panel between the seats. It con-
trols whether the brake is ON (ready to
slow the vehicle down) or OFF (no brak-
ing action).
• Make sure the exhaust brake
switch is OFF before starting the
engine.
• After the engine is started, warmed
up, and you are ready to get under
way, turn the exhaust brake switch
ON for added braking effect.
The engine exhaust brake activates if
all
of the following conditions are true:
• 0% throttle
• Clutch pedal is not depressed
• PTO and cruise control are inactive
• Engine speed is greater than 1000
rpm
WARNING! Do not use the
engine exhaust brake when
operating on road surfaces
with poor traction (such as
wet, icy, or snow covered
roads or gravel). The
engine exhaust brake can
cause the wheels to skid on
a slippery surface. You
could lose control of the
vehicle and/or jackknife if
the wheels begin to skid,
resulting in an accident.
Your vehicle is equipped with Rockwell/
WABCO anti-lock brakes (ABS) and the
operation of the engine exhaust brake
(if turned ON) will be controlled by the
ABS. For more ABS information, see
“
Anti-Lock Braking System (ABS)” on
page 65.
PB1340A.book Page 68 Friday, September 1, 2000 7:40 AM
