Detroit Diesel 60 Operator's Manual page 53

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.
□ If the tractor drive wheels
begin to lock or there is
fishtail motion after the
Engine Brake is activated,
deactivate the brake system
immediately if this occurs.
Under normal driving conditions the
engine brake system is left in the ON
position. However, this should change
if roads become wet or slippery.
After it is switched on, the engine
brake system is automatically
activated each time you remove
your feet completely from the clutch
pedal and throttle. The engine brake
automatically deactivates itself when
All information subject to change without notice.
DDC-SVC-MAN-0039
SERIES 60 ON-HIGHWAY ENGINE OPERATOR'S GUIDE
Copyright © 2009 DETROIT DIESEL CORPORATION
you press the clutch pedal while
shifting gears.
NOTICE:
Do not attempt to "double clutch"
the transmission while the engine
brake system is turned on. Shifting
gears without pressing the clutch or
using the engine brake to reduce
engine rpm may result in serious
powertrain damage.
NOTE:
Some systems may be programmed
to activate themselves only when the
brake pedal is pressed, so read your
vehicle owner's manual thoroughly to
find out if you have this option.
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