© ⅯⅯⅩⅢ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 130318002
149
Kirby Morgan
®
37SS
Chapter 8 - Communications System
3) Unscrew the nut on the outside of the helmet shell.
The large plastic nut is removed from the communications
module.
4) Push the communications module into the helmet
shell interior. Remove the o-ring.
5) The entire communications assembly can be
replaced with a spare assembly for the most rapid
turnaround.
The modular communications system can be rapidly
replaced.
8.15.4 Replacement of Communications
Assembly
1) Install the o-ring on the communications module.
2) Carefully push the communications module
through the opening in the helmet shell. The com-
munications posts, or waterproof connector assembly
if present, should be pointed toward the rear of the
helmet.
3) Screw the nut onto the communications module.
Tighten by hand until snug against the helmet. Do
not use a wrench to tighten this part.
B
WARNING
The communication retainer nut
should never be tightened using a
spanner or other tool. Tightening the
retainer ring using a tool will add ex-
cessive strain to the parts and could
cause damage to the module allowing
the module to break free, resulting in
flooding of the helmet which could
cause injury or drowning.
The nut must be securely fastened to hold the com module in
position. Hand tighten only.
4) Place the earphones in the earphone retainers.
5) Route the earphone wires so they do not obscure
the diver’s vision. The wire for the left speaker is
tucked into the space between the bottom of the oral
nasal mask and the helmet shell.
8.15.5 Microphone Replacement
Tools Required:
1/8
inch Flat Blade Attachment on Torque Screwdriver
The entire microphone is replaced the same as the
ear phones by removing the wire lugs from the com-
munications module and replacing the entire unit.
