VEHICLE RECOVERY AND SPRING BRAKES
2
Driver Controlled Main Differential
Lock
1
2
Air Line (remove to install
Caging Bolt)
Caging Bolt (in storage
location)
1. Lift driving
wheels off the ground
or remove the driveline and axle
shafts before towing the vehicle.
2-16
CAUTION
Failure to lift the driving wheels off
the ground or remove the driveline
and axle shafts before towing the ve-
hicle could seriously damage your
vehicle. All lubricating and clutch ap-
plication oil pressure is provided by
an engine-driven pump, which does
not work when the engine is stopped.
When vehicles are towed either by
wrecker or piggyback, lubricant in the
top front of the drive axle will drain to
the rear. This will leave the top compo-
nents dry, resulting in friction that will
seriously damage these components.
2. Cover open hubs when removing
drive axle shafts.
Y53-6047–2C
CAUTION
Water, dirt and other material can en-
ter an open hub or axle. This can con-
taminate the axle uid and cause pos-
sible damage to components. Ensure
that the hubs are covered with plas
-
tic whenever a drive axle shaft is re-
moved.
3. For vehicles with driver-controlled
main differential lock, install the
caging bolt before removing the
axle shafts for towing.
a. Remove the
air line and rmly
cap.
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. (6.35-12.7
mm) space
will remain
between the air
cylinder and
the bolt head.
(04/13)
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