ARB RD94 - Manual (Page 18)

4 Installing the Air Locker
16
1mm
4.5 Modifying the Bearing Cap
c A hole must be drilled in the seal housing bearing cap for the seal
housing tube to pass through.
c Measure and mark a location on the bearing cap that would allow a
6.35mm [¼’’] hole to be drilled with 1mm [0.039”] clearance from
the edge of the hole and the machined bearing recess. (Fig.10.)
Figure 10.
NOTE : Take time and double check when taking your
measurements, as bearing caps are custom fitted to
the axle housing and cannot be replaced.
c Hold the bearing cap steady for drilling in a soft jawed vice clamp.
NOTE : Do not apply too much clamping pressure with the
vice. The bearing cap may be damaged.
c Using a pedestal drill, drill a 6.35mm [¼’’] hole through the bearing
cap where the position has been marked.
c Debur both ends of the drilled hole to remove any sharp edges.