ARB RD90 - Manual (Page 28)

3 Installing the Air Locker
26
Figure 18.
3.11.2 B Clamshell Housing Tube Profile
c Press the seal housing tube flat to the back of the housing as
shown in Figure 19.
Figure 19.
c Insert the Air Locker into the seal housing by gently lowering it into
the bearing cup with a gentle twisting motion. This will allow the O-
rings to engage gently.
c Rotate the Air Locker a few turns to make sure it rotates freely and
smoothly.
c Carefully assemble the deep half of the clamshell over the top of
the Air Locker.
c Bolt the clamshell assembly closed.
c Check that some backlash can be felt between the ring and pinion
gears. No backlash would be an early indication of incorrect shim
thickness.