ARB RD81 - Manual (Page 18)

4 Installing the Air Locker
16
Tap the hole from the outside using a ¼” NPT pipe tap.
Remove any sharp edges from the hole that may chip-off and fall
into the housing.
Carefully remove rags and inspect with a service light inside the
housing to insure no metal filings are left behind.
4.4 Pre-Load Shimming
In order to pre-load the tapered roller bearings in your Air Locker,
measurements need to be taken so that a value can be calculated for
the total shim thickness ‘E’ in Figure 10.
Remove the long cross shaft of the Air Locker by removing the
retaining pin located one quarter turn from the access window in
the side of the carrier.
Relieve all tension on the housing spreader.
Hold the bearing cups in place over their matching bearing cones.
Figure 10.
AIR LOCKER DIFFERENTIAL