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Kirby Morgan 37 & 57
© Copyright 1970-2008 Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 080508001
6) Install the o-ring on the main tube. Lubricate with
Christo-Lube.
7) Install the o-ring on the adjustment nipple. Lubri-
cate with Christo-Lube.
8) Install the o-ring on the balance spacer. Lubricate
with Christo-Lube.
9) Install the bearing clip on the main tube. Note that
there is a locating pin on the clip that must engage the
correct hole on the main tube. The clip is correctly
positioned when it is on the side opposite of the de-
pression for the lever on the main tube.
10) Spread the arms of the lever just enough to install
it on the main tube.
11) Study the features of the inlet valve assembly.
There are four “wings” towards one end of the as-
sembly and a bore that creates the balance chamber on
the opposite end. The wings that align with the lever
arm are the two that have an additional wall for the
lever arm to bear on. The valve assembly should be
inserted into the main tube with these walls toward
the bottom of the regulator tube.
12) Using a clean wooden dowel rod, that has been
sharpened in a pencil sharpener and inserted in the
open end of the inlet valve, properly align and insert
the inlet valve into the main tube. If this is done
properly, the lever should lift up. If it does not, the
valve has not been inserted correctly.
13) While holding the inlet valve in position, pull
each arm of the lever outward just slightly until the
inlet valves moves further into the main tube, ap-
proximately 1/4 inch. The dowel rod should move in
a bit further to indicate that this has happened.
Install the o-ring on the main tube.
Install the o-ring on the inlet nipple.
Install the lever on the main tube. Note the bearing
clip fastens on the opposite side of the tube.
14) Release your pressure on the dowel rod. The
lever should fall back to its normal position against
the main tube. Push in gently on the dowel and the
lever should rise again. If this does not happen, the
inlet valve is not installed correctly and must be
reinstalled.
15) Remove the dowel rod and insert the spring and
balance spacer into the main tube. Make sure the
balance spacer is properly aligned inside the main
tube by pushing in on the end of the space to see
that it move inward (i.e., it engages the hole in the
inlet valve).
Install the inlet valve in the main tube.