User Manual

ENGINE BRAKE SYSTEM
After it is switched o n, the engine
brake system is automatically
activated each time you remove your
feet completely from the clutch p edal
and throttle.
The engine brake automatically
deactivates itself when you press the
clutch pedal w hile shifting gears.
LOSS OF VEHICLE CONTROL
To avoid injury from loss of
vehicle control, do not activate
the Engine Brake system under
the following conditions:
□ On wet or slippery pavement,
unless the vehicle is equipped
with ABS (anti-lock braking
system) and you have had
prior experience driving
under these conditions.
□ When driving without a trailer
(bobtailing) or pulling an
empty trailer.
□ Ifthetractordrivewheels
begin to lock or there is
fishtail motion after the
EngineBrakeisactivated,
deactivate the brake system
immediately if this occurs.
NOTE:
Some systems may be programmed
to activa te themselves only whe n the
brake pedal is pressed, so read your
vehicle o wn er's manual thorou ghl y to
find out if you have this option.
NOTICE:
Do not attempt to “double clutch”
the transmission while the engine
brake system is turned on. Shifting
gears without depressing the clutch
or using the engine brake to reduce
engine rpm may result in serious
powertrain damage.
Anti-Lock Braking
Systems
Vehicles equipped with ABS
(anti-lock braking systems) have
the ability to turn the engine bra ke
retarder OFF if a wheel-slip condition
is detected. The engine brake will
automatically turn itself ON once
the wheel slip is no longer detected.
The DDEC system w ill deactivate
the engine brake system w hen the
engine speed falls below 1000 rpm
or when the vehicle slows down to a
pre-set speed, depending on DDEC
programming. This prevents stalling
the engine. Engine brakes can also
be used with vehicle cruise control
TURNED ON.
42 All information subject to change without notice. (Rev. 01/04)
DDC-SVC-MAN-0058 Copyright © 2004 DETROIT DIESEL CORPORATION