PART 7: STARTING & OPERATING THE VEHICLE
PUTTING THE VEHICLE IN MOTION
(05/10)
Y53-6032
– 107 –
a. Remove the air line and firmly cap
Illustration of Driver-Controlled Main Differential Lock
b. Remove the caging bolt from its storage hole.
c. Screw the caging bolt into the air line hole. When
fully engaged, a 0.25 - 0.5 in. (6-1/2 mm) space will
remain between the air cylinder and the bolt head.
This action will lock the differential by pushing a pis-
ton into a “lock” position.
CAUTION: Failure to install the caging bolt
when towing vehicles with driver-control main
differential lock can result in damage by fail-
ing to lock internal components in position.
WARNING! Ensure there are no open air lines
on the recovered vehicle if the recovery vehi-
cle and recovered vehicle brake systems are
connected. An open air line on the recovered
vehicle will cause a leak in the air brake sys-
tem of the recovery vehicle possibly causing
an accident and death or personal injury.
CAUTION: A recovered vehicle will have no
operational brake system. Additionally, the
rear axle spring brakes will probably be
applied.
• If you desire to use the recovered vehicle’s
brakes, ensure that the vehicles air system
is connected to that of the recovery vehicle.
Also ensure that any air line that has been
removed from a driver-controlled main dif-
ferential lock is firmly capped to prevent
loss of air pressure from the recovery vehi-
cle.
Caging Bolt Storage Location
Air Line - Remove to Install
Caging Bolt
Y53-6032.book Page 107 Monday, May 24, 2010 3:37 PM
Summary of Contents for Peterbilt 587
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