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SuperLite
®
17B
© ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 120613005
129
8.8.2 Face Port and Nose Block Device
Removal
Tools Required:
7/16 ” Open-end Wrench
1/4 ” Flat Blade Attachment on Torque Screwdriver
Slip Joint Pliers and a Rag or cloth
NOTE: Wrap a rag around the nose block knob while remov-
ing to prevent chrome damage when turning with pliers.
8.7 Port Retainer
The port retainer is made of chrome-plated brass.
We exercise extreme care in installing the nose
block guide located in the lower center front. It is
fastened in place using Loctite
®
222 or equivalent.
Under normal use, the port retainer should never need
replacement.
8.8 Face Port
8.8.1 General
The face port, or viewing lens, is made of a polycar-
bonate plastic. Small scratches on the exterior are
not important, as they tend to disappear underwater.
However, the face port is easily replaced by remov-
ing the port retainer and reinstalling a new O-ring
and face port.
The face port should be replaced anytime cracks
are present or anytime nicks and scratches deeper
than 1/16” are present or anytime the condition is
questionable.
Never use aerosol-propelled sprays near
the face port of the SuperLite
®
-17. The
propellant used in these aerosols can
invisibly damage the face port and cause
it to shatter upon impact from any strong
blow. If the face port fails underwater,
the helmet will flood and drowning may
result.
WARNING
Handle
O-ring
Port retainer
Port
Helmet shell
Wing
Kidney plate
Nose
block
device
Oral/nasal
mask
Many different components interface
with the port retainer.