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© ⅯⅯⅩⅢ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 130318002
Chapter 3 - Pre Dress-In Procedure
Kirby Morgan
®
37SS
3.4.4 Adjusting the Neck Pad
Another component that controls the fit of the Kirby
Morgan helmet is the adjustable neck pad. The neck
pad, which is mounted on the locking collar, slides
back and forth along the locking collar body for
adjustment to fit different divers. Two screws and
adjustment nuts lock the neck pad plate to the lock
-
ing collar. Loosening these screws from the mount
nuts allows the neck pad to be adjusted.
The following procedure requires a diver and tender.
You do not need to have the air on to the helmet if
you do not use the neck dam ring assembly. If the
neck dam assembly is used, the diver must have air
to the helmet to breathe.
With the helmet face down on a suitable surface, pull
and turn each of the sealed pull pins until they are
locked open. Swing the locking collar/neck pad as
-
sembly out away from the base of the helmet. Slightly
loosen the screws until the neck pad can slide back
and forth. Be sure each of the head cushion snaps
are attached to their corresponding fitting inside the
helmet.
Pick up the helmet and pull the nose block device
knob out fully. Position the helmet on your head so
the oral nasal is in the proper position on your face,
covering your nose and mouth. Turn the sealed pull
pins to the locking position with the ridge on the
pins engaging the notch in the sleeve and the pins
fully retracted.
Tilt your head forward so the locking collar/neck pad
assembly may be swung forward and locked up into
its closed position. The sealed pull pins must snap
into place on the locking collar.
Lift your head back up and slide the neck pad forward
until it is snug but comfortable. Mark the position of
the neck pad on the locking collar using an indelible
marker. Pull the sealed pull pins out to their unlocked
position and let the locking collar open.
Remove the helmet. Position the neck pad plate on
the locking collar at the marked position and tighten
the screws on each side. After the adjustment screws
are tightened, don the helmet again, tilt your head for
-
ward and lock the locking collar/neck pad assembly.
Move your head in various positions to make sure
the pad is adjusted for comfort.
The helmet is now adjusted for your head. It should
need no further adjustment unless another diver uses
the helmet.
Tefl on
®
Washer
Washer
Hinge Bolt
Nut
Adjustment Nut
Locking Collar
Neck Pad
T-Washer
Screw
Exploded view of the locking collar assembly.
3.5 Pre Dress-In Procedure
Before dressing in for a dive, inspection of the helmet
systems must be made to be sure it is in proper work
-
ing order. This must be done well in advance of the
dive so any problems can be fixed without delaying
the dive. The following steps are part of the recom
-
mended daily maintenance.
3.5.1 Pre-Dive Visual Inspection
Visually inspect the exterior and interior of the hel
-
met.
1) Inspect the regulator cover for any damage. The
purge button must work.
2) The neck dam must not be torn or punctured, and
properly trimmed to fit.
3) Inspect the O-ring on the neck dam ring assem
-
bly. The O-ring must be in place, undamaged, and
lubricated.
