ARB RD121 - Manual (Page 16)

3 Installing the Air Locker
14
c Assemble the shim pack onto the seal housing flange on the same
side as the seal housing tube’s solder joint.
c Assemble the seal housing into the bearing bore in the shallow half
of the clamshell (shims against the clamshell).
c Using a bearing press or arbor press, press the remaining bearing
cup into the bottom of the same bearing bore (until it stops against
the seal housing).
c Carefully assemble the shallow half of the clamshell over the top of
the Air Locker.
c Measure the preload gap that exists between the two halves of the
clamshell housing with a feeler gauge. (Refer to Fig.6.)
Figure 6.
NOTE : The preload gap should be the same when measured
all the way around the housing. If this is not true, then
reposition the shallow clamshell half and re-measure.
c Subtract the amount measured at the preload gap from the
thickness of the shim pack placed onto the seal housing flange.
c Record the result as this is your true ‘end float’ amount.