ARB RD87 - Manual (Page 11)

3 Installing the Air Locker
9
3.1 Mounting the Ring Gear
c Remove the bolts that hold the ring gear in place.
c Using a plastic or copper hammer, tap in a circle around the ring
gear to separate it from the differential carrier.
c Thoroughly clean any thread locking compound or other foreign
matter from the holes of the ring gear, the threads of the ring gear
bolts, the mating surfaces of the ring gear and the Air Locker
flange.
IMPORTANT:
If the Air Locker is being installed in a Japan model Jimny then
the provided ring gear spacer (190103) must be installed between
the ring gear and the Air Locker.
The Japan model Jimny can be identified by measuring the
thickness between the ring gear flange and the bolt face. It
should be 7mm on the Japan model and 4mm otherwise.
c If required place the ring gear spacer (190103) onto the Air Locker.
HINT : Rubbing the ring gear mounting face with a flat oil
stone before installation will remove any high spots
around the threads.
c Heat the ring gear to between 80 and 100
°
C (175 - 212
°
F) in hot
water or in an oven to slightly expand the gear and facilitate
assembly.
NOTE : NEVER HEAT GEARS WITH A FLAME! This could
damage the hardened surface of the gear and result
in premature wear or failure.
c Dry the gear and tapped holes with compressed air (if wet).
c Apply a thin film of high-pressure grease to the ring gear shoulder
of the Air Locker to prevent seizing.
c Install the ring gear onto the Air Locker by aligning the tapped holes
and then gently tapping it around in a circle with a soft mallet or
hammer. Avoid using the bolts to pull the ring gear down as this
puts excess strain on the bolts and the differential flange.