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© MMXXI Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 210607001
Oral Nasal Mask and Microphone Installation
Test the regulator for proper function
11. Attach the whisker to each side of the face
port retainer using the spacers, zinc anodes
or kidney plates and screws. Using a torque
screwdriver, carefully torque these screws to
the correct torque for the mask frame you are
installing the whisker wings onto.
ALWAYS
REFERENCE
Appendix Contents, Torque Specs
starting on page APNDX-19 in the modular manual to
confirm correct torque.
1.2.2 Oral Nasal Mask and
Microphone Installation
1. Snap the oral nasal mask 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 microphone into the oral nasal
mask.
1.2.3 Nose Block Device Installation
1. Prior to reassembly, lubricate the two o-rings.
2. Slide the shaft through the oral nasal mask in
the mask shell.
Install the nose
block device through
the interior of the
oral nasal mask.
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.
Properly installed nose block device.
1.3 Test the regulator for proper
function
NOTE
When checking the regulator by depressing
the purge button, the regulator may free
flow without back pressure inside of the oral
nasal. This is completely normal. Placing a
finger or hand over the outlet tube of the
regulator will prevent free flow.
See "1.2.2 Adjusting the 455 Balanced
Regulator" on page 455BAL-3 in module 455
Balanced Regulator for proper adjustment.
NOTE
For all maintenance and adjustment
procedures, refer to the 455 Balanced
Regulator module found in the “Manuals and
Exploded Views” link under the “Support”
link at
