ARB RD83 - Manual (Page 14)

3 Installing the Air Locker
12
NOTE : Figure 7. shows a lower drainage hole cut into a
bearing seat.
Figure 7.
c Remove any sharp edges left behind by the modifications that
could break off and fall into the cavity.
c Make sure any grinding dust, filings or drill chips left behind by
cutting the drainage slots are completely cleaned out of the
housing.
c Check that the axle air vents are clear and working correctly.