© ⅯⅯⅩⅢ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 130318002
133
Kirby Morgan
®
37SS
Chapter 8 - Neck Dam
14) Tighten all the screws to 10 inch pounds (1.1
Newton Meters) of torque.
Tighten all the screws to 10 inch pounds (1.1 Newton Meters)
of torque.
15) Allow the neck ring assembly to sit for 24 hours.
This will give the neoprene time to compress and
take a set.
16) Re-torque all screws after 24 hours to 10 inch lbs
(1.1 Newton Meters).
17) Trim the excess neoprene that sticks out beyond
the stepped ring. Use a new sharp razor to start the
cut. Once the cut is started, pull on the neoprene and
maintain tension on it as you continue cutting. The
cutting edge of the blade should follow the outside
rim of the split rings. The point of the blade should
be directed inside against the corner where the top
of the stepped ring meets the step. You must have a
clean cut with no loose strips of neoprene hanging
from the neck dam that could interfere with the seal
of the o-ring.
Trim the excess neoprene using a sharp razor.
18) Check the torque adjustment on the neck ring
assembly on a regular basis to help prevent failure
of the neck seal.
19) New neoprene neck dams may need to be
stretched to fit the diver's neck properly. The best
method is to stretch the neck dam over a scuba cyl-
inder and allow it to sit overnight.
8.6.3 Latex Neck Dam Replacement
Tools Required:
7/64
" Allen Wrench.
#2 Phillips Screwdriver
Torque Screwdriver with a
7/64
" Allen wrench attach-
ment and #2 Phillips head screwdriver attachment.
Silicone Grease.
Felt Tip pen.
Sharp Razor Blade
New neck dams are supplied without mounting screw
holes punched in them. As the mounting screws are
inserted and tightened they cut their own holes in
the neck dam.
1) Install the split rings inside the trimmed outer lip
of the neck dam. Turn the neck dam over and lay it
flat on the work surface. The split rings will now be
hidden by the neck dam.
