ARB RD110 - Manual (Page 22)

3 Installing the Air Locker
20
3.10 Setting Up the Bulkhead Fitting
c Insert the end of the seal housing tube into the bulkhead fitting and
hold it to its full depth.
c From the outside of the housing, assemble the small O-ring over
the top of the small length of seal housing tube that can be seen
inside the bulkhead fitting.
c While still holding the seal housing tube at depth, insert the small
drilled end of the center compression nut over the extended tube as
shown in the assembly diagram (Fig.12.), and screw it into the
bulkhead body, and tighten.
Figure 12.
NOTE : Be sure to insert the correct end of the center
compression nut into the bulkhead body. The thread
has been partially relieved on the bulkhead side of the
center compression nut to visually identify its
orientation. (Fig.12.)
NOTE : Excessive tightening of the center compression nut is
not necessary to form a good seal around the tube
and may damage the O-ring or the threads of the
compression nut.