© Copyright 1970-2012 Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 110201001
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Chapter 3
In Water Operations
3.1 Introduction
This section deals with the different functions and adjustments that are possible after
entry into the water. Some divers may be satisfied with the fit and function of the
mask as it is set up top side, or it may be easily adjusted in the water if necessary.
3.2 Water Entry
Many methods of entry into the water are possible using the Balanced Regulator
EXO-26, but a few important points should be noted. When using the giant stride
entry, the bottom 7 holes in the exhaust whisker should be covered to prevent any
turbulent water from flowing past the exhaust valve.
If you roll into the water backwards, turn your head to one side before entering to
prevent water from washing past the face seal to the interior of the mask. In the
event water does enter the mask, keep the regulator positioned low and simply
press the purge button to remove the water.
3.3 Regulator Adjustment
The adjustment knob should be set for easy breathing on deck. Once in the water,
the adjustment may be changed to compensate for work rate, depth, diver position,
or affects of current or turbulence on the diaphragm.
The most noticeable difference in breathing resistance can be found in a face up
position. Resistance increases with the regulator diaphragm in this position.
If the regulator adjustment knob is adjusted all the way in and breathing resistance
is high, it is sometimes possible when the mask is not fitted properly, for small
amounts of water to get past some areas of the face seal. Any leakage which does
occur usually enters in the temple area. Backing out on the adjustment knob will
lessen resistance on the diaphragm to prevent any leaking. If leakage still persists,
a face cushion kit ( Part # 325-025) is recommended. Fine tuning the regulator
should be common practice if you maintain a certain position for any length of
time and then change positions. If you are working in a face down position and the
regulator adjustment knob is adjusted too far out, the regulator may free flow. The
adjustment knob should be turned in to stop any excess air flow.
3.4 Spider Adjustment
The mask can be repositioned if needed, while in the water, by loosening, repo-
sitioning and retightening the spider legs. The large tabs on each buckle provide
this easy adjustment. It should also be noted that the buckle travel is limited to
allow easy release.
