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7) Set the neck clamp down with the open ends fac-
ing you with the lever end on your right with the
locking loop down. Place the neck dam inside the
Clamp in the position it should be when assembled.
(Rubber side in-cloth out, with the outer edge rolled
up towards the clamp).
8) Start feeding the end of the neck clamp that does
not have the lever into the (large hole) of the new
neck dam. Work the rubber around the neck clamp
assisting it over the block and the guide tracks on
the clamp. Carefully work the rubber around the
clamp continually lifting it over the block ensuring
the internal rubber is not compromised.
When the rear-sewn seam is just past the hinge tab mount
plate on the rear of the neck clamp stop feeding the rub-
ber. This is the correct position. Even out the rubber on
the neck dam so it is uniform in stretch all about the neck
clamp.
9) The two ends of the neck clamp are now overlapping.
The lever end of the neck clamp must now be inserted into
the guide tracks of the lever end of the neck clamp. The
block that receives the threaded adjustment arm should
be in the correct position to be accepted by the second
(smaller) hole that was present in the new neck dam.
Ensure the sleeve is not stretched unevenly (the hole at
the base of the handle should not be pulling or stretched
into elongation).
10) Run the nut onto the threaded adjustment bolt arm
about
/
inch, slip on the lock washer and insert the ad-
1
2
justment arm through the block and run on the lock nut.
Work the lever of the neck clamp back and forth, checking
that the ends of the clamp are engaged, tracking correctly
and not binding.
11) Make sure the rear sewn seam of the neck dam is
next to, but not on, the hinge tab of the neck clamp
where the rear hinge tab is mounted. Install the clamp
on the helmet shell and close. The purpose for this is
to ensure the neck dam material is properly aligned.
Note: The clamp will require adjusting so that the
neoprene gets compressed tightly against the helmet.
At this point feel for the hinge tab mounting surface
under the neoprene, and once located use a marker
© ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 120613005
to trace the outline staying just slightly inside the
so that after the neoprene patch is cut, the cut out
opening will be slightly smaller than the hinge tab
mounting plate.
NOTE: There are two ways to mount the neck dam
over the hinge tab screws. The first is to cut indi-
vidual holes for each of the hinge tab screws, and
then sandwich the neoprene between the hinge tab
and clamp.
The other way is to cut a small rectangular piece
of material from the area where the hinge tab
mounting surface is for the screws. Sandwiching is
preferred by many, saying the neck dam lasts longer
and remains drier. Both ways will work. However
if the neoprene is to be sandwiched using four hole
method the screws must have thread locker applied
and re-torque after 24 hours of the initial torque.
Torque the screws to 25 inch pounds.
8.10.4.2 Four Hole Method of Attaching
Neck Dam to Hinge Tab
a.) Feel for the hinge tab mounting surface under the
neoprene, and once located use a heated nail or metal
scribe to burn a hole for each of the screws that secure
the dam to the hinge tab. Use care not to damage the
surrounding area and ensure the hole diameters are
as large as the screws.
b.) Visually inspect each screw prior to reuse, if any
abnormalities are present replacement is recom-
mended.
NOTE: KMDSI recommends use of a non-locking
thread locker such as Loctite
Vibra-Tite or equivalent in this application along
with the use of the star washers.
®
SuperLite
17B
222, ND Industries
®
145
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