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EXO Full Face Mask Manual
Under certain conditions, depending upon water
temperature, you may find it necessary to prep
the mask lens to keep it from fogging while
diving. There are a number of commercial de-
foggers available for scuba diving which work
well. Follow the directions on the label for use.
If no commercial preparation is available it is
possible to use soap. Use a small amount of
liquid soap on a rag and smear a thin film on the
inside of the lens. Do not rinse this film off.
Apply the soap just prior to entering the water.
2.6 ADJUSTING THE EQUALIZER
EXO STANDARD OR BR
There are three different height positions that
the Equalizer can be adjusted to. Carefully peel
the Equalizer out of the Wire Retainer and re-
position it in another one of the molded grooves
in the Equalizer. The Wire Retainer can also be
slightly bent in one direction or another, up or
down, to get the angle of the Equalizer just right.
Insure that the corners of the Equalizer grooves
are "snapped" into position on the Wire Retainer
so that it does not come loose.
2.7 CHECKING REGULATOR FUNC-
TIONS AND PREPARING THE EXO
FOR USE IN THE SCUBA MODE.
Attach the low pressure hose that is supplied
with the mask to the low pressure (L.P.) port on
your 1st stage regulator and then to the mask.
Never connect the hose or mask to a high pres-
sure (H.P.) port. When attaching the hose to the
regulator ALWAYS USE A BACK UP
WRENCH ON THE NIPPLE TUBE.
CAUTION: If you are not using the
inlet angle fitting, a backup wrench must
be used on the hex fitting of the regula-
tor when tightening. Otherwise the regu-
lator may come out of adjustment!
10
Always use a back-up wrench when attaching or
removing a hose to the regulator.
Prior to attaching your first stage regulator to
your tank be sure the regulator adjustment knob
on the mask is screwed all the way in. This will
prevent the regulator from free flowing when the
air is turned on.
Your 1st stage regulator should be equipped
with a submersible pressure gauge. Attach the
first stage to your tank and turn the air on while
holding the submersible pressure gauge away
from you. Once the air is on, check the pressure
gauge to ensure you have a full tank.
WARNING: 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 under-
water, 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 immedi-
ately.
Check the mask regulator for adjustment and
function. EXO masks are preset at DSI 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
Chapter 2
Document # 001026001
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