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WARNING
The O-ring used with the face port of the
SuperLite
-17A/B is made from a special
®
compound and has unique dimensions. It
is a softer durometer O-ring than is com-
monly available. There are no equivalent
O-rings manufactured by other vendors.
This O-ring must be replaced with a new
KMDSI O-ring. Failure to do so could
lead to seal failure resulting in leaks or
flooding.
If you are replacing the face port, it's a good idea to
replace the o-ring that seals it.
5) Slip the O-ring on the small tube that protrudes
from the rear of the port retainer nose block guide.
Place the port retainer onto the helmet shell, holding
it in place against the face port and face port O-ring
( while the twelve screws are all run in loose. Replace
the handle as per this chapter.
6) Using a torque screwdriver slightly tighten each
opposing screw evenly, i.e. 12 o'clock position, 6
o'clock position, 9 o'clock position, 3 o'clock etc..
Repeat this process, one after another, until all screws
are evenly torqued to 12 inch pounds of and the O-
ring has completely sealed the face port.
NOTE: Testing of the inserts should be accom-
plished once a year, or whenever damage is sus-
pected. Use Part #525-115 Thread Insert Testing
Block Kit.
When testing the Thread Inserts, or when removing
© ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 120613005
WARNING
Always be sure to use a torque screw-
driver to check the tension of the port
retainer screws. Over tightening can
cause damage to the threaded inserts
in the fiberglass shell and cause them to
loosen. Without the correct tension the
port retainer may come loose and the
helmet could flood. This could lead to
drowning.
and replacing the port retainer, it is crucial that the
KMDSI recommended torque specs be followed
when tightening the port retainer screws. Any over
torque of a screw greater than 14 inch pounds can
result in serious damage to the surrounding fiberglass
in the port area. This can lead to loosening of the
port retainer and in extreme instances to flooding of
the helmet.
The test procedure is designed to identify any inserts
that have been damaged, or become loose, requir-
ing replacing. Replacement of inserts should only
be completed by an authorized / trained KMDSI
technician that has received certification in insert
replacement. Minor fiberglass and gel coat repairs
must only be completed by technicians that have
received fiberglass and gel coat training and certifi-
cation by KMDSI.
7) Install the nose block device from the interior of
the oral nasal mask and out through the nose block
guide on the port retainer.
8) Slide the two lubricated O-rings onto the shaft of
the nose block device.
9) The packing nut is threaded into place followed
by the nose block device knob.
10) Tighten the packing nut until some resistance is
felt when the nose block device knob is pushed in
and out. Tighten the nut until it cannot be loosened by
hand, then another half turn. If the packing nut is too
tight the nose block device cannot slide in and out.
11) The nose block device knob should be tightened
to the shaft using a padded pair of pliers, while hold-
ing the nose block pad on the inside of the helmet.
®
SuperLite
17B
131
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