4 Installing the Air Locker
19
4.6
Final Air Locker Assembly
With the seal housing removed clean all parts of the differential
assembly. It is very important to make sure the bearing journal is
free from any contaminants (eg: water, dirt, metal fillings, etc.)
Lubricate the O-rings with oil (prior to assembly), then insert them
into the seal housing grooves.
Place the bearing cups onto their respective bearing cones.
Install the seal housing over the bearing journal by gently applying
a downward twisting motion to allow the O-rings to gently engage.
Spread the differential housing again (Refer to section 2.6).
Assemble the shim pack over the seal housing tube and onto the
seal housing spigot (Figure 10.).
Point the seal housing tube
straight out
of the housing, hold the
shims, seal housing and tapered roller bearing cups in place, and
insert and hold the
Air Locker
into the differential housing.
NOTE : If the carrier is too difficult to install with the added
shim pack then the spreader tension may need to be
increased. Do not spread the housing more than
0.50mm [0.020”].
Relieve all tension on the housing spreader.
Install the bearing caps in their respective sides.
NOTE :
When installing the bearing cap be careful not to
damage the shims.
Check to see if the bearing cap on the seal housing side fits over
the tube without fouling and fits properly in place.
Install all bearing cap bolts and torque to manufacturer’s specs.
NOTE :
Check to ensure there is running
clearance between the flange cap of
the Air Locker and the differential
housing (Fig.12.). If there is no
clearance, the differential housing
may need to be ground down slightly
until some clearance exists.
NEVER MODIFY THE AIR LOCKER.
Figure 12.
CLEARANCE REQUIRED