ARB RD90 - Manual (Page 27)

3 Installing the Air Locker
25
3.11 A B Final Assembly
The seal housing tube needs to be carefully bent so that it will stay
clear of any moving parts of the differential and not rub against any
sharp stationary edges on the bearing cap or the differential housing.
3.11.1 A Front Access Housing Tube Profile
c Without using sharp, jagged tools such as pliers (usually your
hands are the best tool for this job), gently bend the seal housing
tube so that it closely follows the profile of the ring gear.
(Refer to Fig.17.)
Figure 17.
NOTE : Any contact due to vibration or shock could wear the
tube over time and eventually cause a leak. Keep the
tube away from any sharp edges of the bearing cap or
any other part of the differential housing.
c Position the aluminum access cover in its installed position to check
that no part of the tube comes in contact with it.
c Check the gap between the Air Locker and any close points on the
seal housing tube with a feeler gauge to insure that adequate
clearance exists. (Refer to Fig.18.)
NOTE : Less than 8mm [5/16”] should be considered too little
clearance.