ARB RD166 - Manual (Page 31)

4 Installing the Air System
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F To attach the air line to the push-­in fitting of the solenoid;; insert the
line firmly into the fitting, pull outward on the flange of the fitting
while holding the line as far into the fitting as possible, and then
gently pull outward on the air line to clamp the line in place.
4.3
Connection to the Bulkhead Fitting
F In the case of an IFS axle assembly or in the case that the axle
assembly has been completely removed from the vehicle, the
assembly will have to be remounted in order to position the
bulkhead fitting in its correct location for air line access.
F Trim the air line to length using a sharp knife.
F Insert the support spring over the end of the air line -­ small end first.
(Fig.17.)
F Insert the outer compression nut over the air line.
F Push the airline onto the barb on the center compression nut,
ensuring that it is pushed all the way to the end.
Figure 17.
HINT : If the tube is too difficult to push on, place the end of
the air line into a cup of boiled water to soften the
tubing.