Post Dive Procedures - Kirby Morgan 77 Operation And Maintenance Manual

WARNING
Never remove the diving helmet while
you are in the stage. If you fall out of the
stage with the helmet off but still attached
to your harness it may be very difficult to
swim. Drowning may result.

3.12 Post Dive Procedures

3.12.1 Removing the Equipment
After the diver is well clear of the water he may
remove the helmet. If the diver is working out of a
stage he must not remove the helmet until the stage
is on deck.
3.12.2 Removing the Helmet
Remove the helmet by pulling the sealed pull pins
out (forward) and turning them until they are locked
open in the extended position. Tilt your head and the
helmet forward and swing the locking collar back
behind your shoulders. You will need to pull down
on the pull strap to break the seal between the neck
dam ring and the helmet ring and to disengage the
neck ring from the swing tongue catch.
Once the neck ring is disengaged from helmet ring,
you can loosen the chin strap and then lift the helmet
off of your head. A good tender will be prepared
to help the diver with the removal of the helmet as
required.
The emergency gas supply hose may be disconnected
while the diver leaves the helmet on or while he holds
the hat after removal. The quick disconnect makes
this procedure very easy.
The tender should then unfasten the umbilical from
the harness and take the helmet from the diver and
set it aside. (Closing the locking collar/neck pad as-
sembly onto the helmet before setting the hat down
on a rough deck will help protect the helmet neck
ring from damage). The harness and bailout bottle is
then removed.
3.12.3 Storage of the Helmet Between Dives
The helmet should be maintained per the daily main-
tenance section in Chapter 6.
If the helmet is not going to be used for a period of
time, the head cushion, should be removed. The head
cushion should be dried and replaced in the hat before
storage. The regulator adjustment knob should be
unscrewed all the way out (counterclockwise) until
© ⅯⅯⅩIⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 130318003
the next dive. Be sure to check the communications
components and allow them to fully dry.
When the helmet is completely dry, or the diver is
ready to leave the job, the helmet should be stored in
the carrying bag to protect it.
If the head cushion becomes wet it may be dried out by
removing it from the helmet, squeezing excess water
out, and letting the head cushion hang dry or putting
it in a clothes drier on air dry only.
The Pull Strap assembly has a 1" Stainless Steel "D"
ring sewn on the end to hang the neck ring assembly
to allow proper drying.
The helmet should be rinsed with clean fresh water
following each use, then thoroughly cleaned.
WARNING
Use only the air dry setting when drying
head cushion foam in a drier. Use of a
higher setting could cause the foam to
melt or start a fire.
Kirby Morgan 77
®
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