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Kirby Morgan 37 & 57
© Copyright 1970-2008 Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 080508001
7.11 Reinstalling the Quad-Valve™
Exhaust Assembly
Once the Quad-Valve™ exhaust has been reassem-
bled, it may be mounted back on the helmet.
1) Begin to re-install the demand regulator into the
mounting hole in the helmet shell, but insert it only
about halfway in. This will allow the stainless steel
adapter cover to align easier with the main exhaust
body.
Start the cover straight onto the main exhaust body,
then alternate back to inserting the regulator. Do this
until both are in their proper positions. Lubricate the
regulator seal o-ring and hand start the regulator
mount nut.
2) Lubricate and install the 2 o-rings and install
onto the washer head screws. Using either a flat blade
screwdriver or a ¼ nut driver, fully engage the screws.
Tighten until snug. TIP: the ¼” hex tool found in the
Kirby Morgan regulator tool kit works very well for
this purpose. (Part #525-620)
3) Reinstall the bent tube assembly and tighten the
jam nut to 40 inch pounds.
4) Retighten the regulator mount nut to 75 inch
pounds.
5) Reinstall the 4 spacers, kidney plates and screws
and torque to 12 inch pounds.
6) Attach any other components that may have been
displaced to aid in this installation.
Use only KMDSI original replacement
spares when repairing your helmet. The
use of other manufacturer’s parts will
interfere with the performance character-
istics of your life support equipment and
may jeopardize your safety. Additionally,
any substitutions will void all warranties
offered by KMDSI.
WARNING
The Quad Valve exhaust cover must be properly
fastened to the main helmet exhaust.