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© ⅯⅯⅩⅢ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 130115001
SuperLite
®
27
®
8.9 O-Ring Seal Replacement
The O-ring on the neck dam ring assembly must be
replaced annually, or whenever it shows signs of
wear. The O-ring makes the seal between the hel-
met ring on the base of the helmet and the neck dam
ring assembly.
To replace the O-ring, simply stretch it over the bot-
tom of the sides of the neck dam ring assembly. The
O-ring must be lubricated with a light coating of sil-
icone lubricant before each diving day.
Lubricate the O-ring with a light coating of
silicone lubricant before each diving day.
The O-ring on the neck dam ring of the
Kirby Morgan helmets is made from a
special compound and has unique di-
mensions. It is a softer durometer O-ring
than is commonly available. There are
no equivalent O-rings manufactured by
other vendors. This O-ring must be re-
placed with a KMDSI O-ring. Failure to do
so could lead to seal failure and helmet
flooding. This could lead to drowning.
WARNING
The strap should be oriented so that the tail pulls
towards the right side of the helmet when it is on
your head.
WARNING
Do not breathe the
fumes from uncured
silicone sealant.
These fumes are
dangerous and can
cause unconscious-
ness. They can also
cause long term
damage to body
tissue. Read and follow all precautions
listed on the silicone sealant tube. Al-
low silicone to cure for a minimum of 24
hours before using helmet.
Wear eye protection when
using RTV sealant. This
material may irritate your
eyes. Read and follow the
directions in the MSDS be-
fore using this material.
CAUTION