ARB RD136 - Manual (Page 25)

3 Installing the Air Locker
23
Figure 18.
IMPORTANT:
In order for the seal housing to float and self center on the
bearing journal, the seal housing tube must not be pulling
against the seal housing. To check this, rotate the drive flange
back and forth while observing the seal housing movement.
The seal housing should rotate slightly against the spring clip,
but it should not appear to pull away from the face of the
adjuster nut.
IMPORTANT:
Check that the tail of the adjuster nut locking tab does not
push on the seal housing. Bend it up away from the seal
housing with a screw driver if necessary.