Communications Posts - Kirby Morgan 77 Operation And Maintenance Manual

8.15.9 Communications Posts

8.15.9.1 Communications Post Removal
Tools Required;
3/8 inch Open End Wrench
Flat Blade Attachment on Torque Screwdriver
1) Remove the communications assembly from the
helmet as per this chapter.
2) Remove the rubber cover.
3) Remove the screws and washers from the com-
munications module.
4) Remove the earphone and microphone wire lugs
from the interior of the communications module.
5) Remove the nuts, the wiring harness and washers
from the communications posts.
6) Remove the communications posts from the
module.
7) Remove all traces of silicone sealant from the
communications module.
8.15.9.2 Communications Post
Replacement
1) Apply fresh RTV (silicone sealant) to the base of
the communications posts.
2) Insert the communications posts into the module.
3) Install the washers on the communications posts,
then the wiring harnesses.
4) Screw the nuts on the communications posts and
tighten until snug. Do not overtighten.
5) Wipe off any excess silicone sealant from the
module.
6) Slip the earphone and microphone wires back
into the module through the slot in the side of the
module.
7) Place the screws with washers through the open-
ing on the terminal lugs in the earphones, micro-
phone, and wiring harnesses.
8) Thread the screws into the communications mod-
ule.
9) Tighten the screws until snug; do not overtighten.
© ⅯⅯⅩIⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 130318003
10) Install the rubber cover.
11) Reinstall the communications assembly into the
helmet shell per this chapter.
Use a wrench to tighten the binding post nuts.
CAUTION
CAUTION
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
Wear hand protection when
using RTV sealant. This ma-
terial may irritate your skin.
Read and follow the direc-
tions in the MSDS before
using this material
Kirby Morgan
®
Use good ventilation
when using RTV seal-
ant. Fumes from this
material may irritate
your lungs. Read and
follow the directions
in the MSDS before
using this material.
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