User Manual

SERIES 50 OPERATOR'S GUIDE
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.
If the vehicle is ma intaining traction,
place the selective braking sw itch in
the LOW position and tu rn O N th e
engine brake system. If the drive
wheels are maintaining traction and
you desire greater slowing power,
move the braking sw itch to the next
highest position.
However, if the tractor drive wheels
begin to lock or there is a fishtail
motion, turn the engine brake system
OFF immediately and do not activate
it until road conditions improve.
Check your progressive braking
switch often for proper position , since
road conditions can change quickly.
Never skip a step when operating the
progressive braking system. Alway s
gofromOFFtoLOWandthentoa
higher position
All information subject to change without notice. (Rev. 01/04) 45
DDC-SVC-MAN-0058 Copyright © 2004 DE TROIT DIESEL CORPORATION