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© ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 120613002
Operating Instructions
holding the submersible pressure gauge away from you. Once the air is on, check
the pressure gauge to ensure you have a full tank.
B
CAUTION
A submersible pressure gauge is considered essential for full
face mask scuba diving. The diver must plan his dive to avoid
running out of air while wearing a full face mask. There is no
way to safely buddy breathe underwater, use an octopus rig,
or snorkel on the surface while wearing a full face mask. If the
submersible pressure gauge should fail during the course of a
dive, the dive should be terminated immediately
Check the mask regulator for pre-dive adjustment and function. The Balanced
Regulator EXO-26 masks are preset at KMDSI with an intermediate pressure of
135-145 psi. Starting with the regulator adjustment knob screwed all the way in,
back the regulator adjustment knob out 3 full turns. There should be no indication
of air flow through the mask if the intermediate pressure on your first stage regula-
tor is set at around 135-145 psi. Higher first stage regulator pressures may cause
free flow, but turning the regulator adjustment knob in, should stop the flow. In
the unlikely event there is still flow, proceed to the regulator adjustment section in
chapter 5 of the EXO-26 Operations and Maintenance manual ( Part # 100-030)
to reset the regulator.
Loosen all the straps on the Spider and hold the mask on your face. Take a couple
of good breaths. Breathing slow and soft at first then hard and fast. The regula-
tor should be operating with the minimal amount of breathing resistance and no
free flowing. Any type of an air flow “hiss” should be able to be adjusted out by
using the adjustment knob. If the adjustment knob is adjusted all the way in and
the regulator still hisses, see the regulator adjustment section in chapter 5 of the
EXO-26 Operations and Maintenance Manual.
Press the purge button a couple of times. There should be a
fairly strong air flow into the mask. If there is no flow when
pressing the purge button, or if the regulator is hard to breath,
see the regulator adjustment section in chapter 5 of the EXO-
26 Operations and Maintenance manual.
Once you enter the water the regulator can be adjusted for a
variety of diving conditions and positions just by turning the
adjustment knob in or out.
