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8.4.3 Lightly lubricate the O-ring (15) and install it on the bonnet nut (16).
8.4.4 Lightly lubricate the Teflon washer (13) and install it onto the stem (13).
8.4.5 Install the stem (13) into the bonnet nut (16).
8.4.6 Install the bonnet nut and stem assembly into the body. Take care to engage the stem’s tang into the
slot in the plug assembly (12) as the bonnet nut is tightened. Failure to engage the stem tang into the slot
can cause the tang to break as the bonnet nut is tightened.
8.4.7 Tighten the bonnet nut (16) snuggly with 1-2 ft. lbs. (2-3 Nm) of torque.
8.4.8 Place the original nylon washer, handwheel, spring and stem nut (17, 18, 19, 20) onto the stem (13).
8.4.9 Tighten the stem nut into the handwheel until the outer edge of the stem nut is even with the edge of
the handwheel.
8.4.10 Insert the nylon purge valve (11) into the body, pointed end first.
8.4.11 Install the purge collar over the body and purge valve. Note the mark you put on the edge of the collar
as per step 8.2.9 so that the purge collar is installed the right way around.
8.4.12 Use Cir-Clip pliers to install the Cir-Clip (6) into its groove on the body.
A NOTE ON TEFLON TAPE:
If using Teflon tape, always take special care not to get tape on the first (out-
side) thread. Any tape that gets on this thread or on the inner face of the thread body will be cut off when the
thread is tightened. Loose tape will then probably get tangled in the internal valving causing leaks.
8.4.13 If the stainless steel Quick Disconnect fitting (22) is used on your filler valve. Install the new face-seal
O-ring from the kit into the QD fitting. Put pipe sealant or Teflon tape on the male threads of the QD fitting.
Tighten the QD fitting (22) into the body (8). Go to step 8.4.15.
8.4.14 If the threaded connection (1, 2, 3, 4, 5) is used, put pipe sealant or Teflon tape onto the male threads
of the swivel (5) and install it tightly into the body (8). Generously lubricate the spool with its O-rings installed
(2, 3, 4) and install it into the swivel (5). Thread the filler handwheel (1) into the swivel and tighten it snuggly
with an adjustable wrench on the swivel’s nut.
8.4.15 Put pipe sealant or Teflon tape onto the male threads of the gauge (9). Use an adjustable wrench on
the flats of the gauge to tighten it.
8.4.16 Put pipe sealant or Teflon tape onto the male threads of the hose (10). Use two wrenches to tighten
the hose into the body.
8.4.17 If the filler whip is part of a fill station manifold, put pipe sealant or Teflon tape onto the male threads
of the hose and install it into the fill station manifold. If the filler whip is used to fill the RaZor regulator from
another scuba tank, install the male threads of the hose into the yoke assembly for the filling whip (21).
8.4.18 Pressurize and test the system for leaks. Correct any leaks found.
