3 Installing the Air Locker
12
Tap the hole from the outside using ¼”NPT thread tap.
Remove any sharp edges that may chip off from around the hole
and fall into the housing.
Very carefully, remove the rags and inspect with a service light
inside the housing to insure no metal filings are left behind.
3.4 Checking for Assembly Clearance
IMPORTANT:
Some axle housing castings will require modification for correct
Air Locker installation. A properly installed Air Locker will have
no less than 0.5mm [0.02”] between any part of the differential
carrier and the axle housing casting.
Hold the tapered roller bearing cups onto the cones on the carrier.
Carefully insert the Air Locker assembly into the axle housing so
that the ring gear is in mesh with the drive pinion.
Using an automotive feeler gauge, check for adequate clearance
between the body of the Air Locker and the axle housing casting
around the flange cap.
If necessary, remove the Air Locker, cover the drive pinion area
with a rag to protect it from metal filings, and grind the axle housing
casting to gain clearance (Fig.8.).
Thoroughly clean the housing once finished.
Figure
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