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© MMXXI Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 210607001
Oral Nasal Mask and Microphone Installation
455 Balanced Regulator Installation
1.2.5 Oral Nasal Mask and
Microphone Installation
1. Snap the oral nasal over the regulator mount
nut. Take extra care to make sure the mask has
snapped into position all the way around the
mount nut.
2. Reinstall the communications module.
1.2.6 Nose Block Device Installation
1. Prior to reassembly, lubricate the two O-rings.
2. Slide the shaft through oral nasal mask in the
helmet or mask shell.
3. Place both O-rings on the shaft, followed by
the packing nut and the knob.
4. Tighten the knob with the pliers, padded by a
cloth, while holding the nose pad end inside the
helmet with your hand.
5. Tighten the packing nut with the
7/16
inch
wrench until snug. Do not over tighten, as this will
make it difficult to slide the nose block device in
and out.
1.2.7 Chin Strap Replacement
NOTE
The adjustment strap should pull toward the
right side of the helmet when it is on your
head.
1. Put Loctite
®
248 on the screws that secure the
tabs that hold the chin strap.
2. Install the two screws that hold the chin strap
in position, using the two screws supplied with
the chin strap replacement kit.
3. Tighten the screws with a torque screwdriver
in accordance to the correct torque specification.
ALWAYS REFERENCE
Torque Specs starting on page APNDX-19 in the
modular manual to confirm correct torque.