ARB RD90 - Manual (Page 22)

3 Installing the Air Locker
20
HINT : Use the location of the oil vent hole to gauge where
the position should be.
Figure 12.
NOTE : The photograph shows the bulkhead body already
installed and the seal housing sitting in position
where it will be pressed in later on.
c Cover the bearing seat area with a rag to protect it from metal
filings.
c Drill through the housing square to the outside surface (i.e., with the
drill body angled slightly towards the center from the inside) using
an 11.2mm [7/16”] drill.
Figure 13.