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Peterbilt 579 - Page 65

Peterbilt 579
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VEHICLE RECOVERY AND SPRING BRAKES
This action will lock the
differential by pushing a piston
into a “lock” position.
CAUTION
WARNING!
Failure to install the caging bolt when
towing vehicles with driver-control
main differential lock can result in
damage by failing to lock internal com
-
ponents in position.
Ensure there are no open air lines on
the recovered vehicle if the recovery
vehicle and recovered vehicle brake
systems are connected. An open
air line on the recovered vehicle will
cause a leak in the air brake system of
the recovery vehicle possibly causing
death, personal injury, equipment or
property damage.
CAUTION
A recovered vehicle will have no op-
erational brake system. Additionally,
the rear axle spring brakes will prob
-
ably 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 differential
lock is rmly capped to prevent
loss of air pressure from the
recovery vehicle.
If you
don’t desire to use the
recovered vehicle’s brakes,
ensure that you cage the spring
brakes before attempting to move
the vehicle.
CAUTION
Connect recovery rigging only to
hitches intended for that purpose. Do
not attach to bumpers or brackets.
Connections to other structural parts
could damage the vehicle.
2
4. Install recovery hitches and
rigging.
(04/13) Y53-6047–2C 2-17

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