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Tusa Buoyancy Compensator Jacket Manual

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Over-Pressure Exhaust Valve
All TUSA B.C.J.’s are equipped with an Over Pressure Exhaust Valve. (O.P.E.V.)
This allows the B.C.J. to be automatically vented should air pressure in the inner
bladder become too great. O.P.E.V. valve will close once desired air pressure is
achieved, thus preventing damage to B.C.J. due to overexpansion.
3. Release button as you inhale air.
4. Continue inflation using Steps 1-3 until desired buoyancy is achieved.
Auto Inflation
To inflate B.C.J. slowly press Auto Inflation Button. (Fig. 8)
WARNING:
While inflating the B.C.J. it is recommended to have contact on the deflation button to
prevent an out of control ascent.
Oral Inflation
Procedure for Oral Inflation:
1. Before activating valve, purge any water that may be
trapped in mouthpiece by exhaling a small amount of
air into oral inflator opening.
2. With mouth still pressed against oral inflator opening,
press Manual Inflation/Deflation Button as you exhale.
(Fig. 9)
(Fig. 9)
B.C.J. INFLATION
APA inflator unit (APA type)
To take in air from the tank and obtain buoyancy, press the Auto inflation button.
Holding down this button can take in more air than necessary, so adjust the amount of
air by repeatedly pressing the button for a short while then releasing it. On the other
hand, air can be deflated from the BCJ to lower buoyancy by raising the APA inflator
main unit high in the direction of the water surface and pressing the regular Deflation
button. It is also possible to deflate rapidly by pressing the APA deflation button. Of
course, it is equipped with the Rapid Exhaust Deflation, which is a feature of TUSA
BCJs. This function “enables you to exhaust rapidly by grasping the APA inflator main
unit with one hand and just pulling in forward direction”.
(Fig. 8)
Manual Deflation
Procedure for Manual Deflation.
1. Raise Inflation/Deflation Assembly to a position nearest the surface of the water.
2. Press Manual Inflation/Deflation Button until enough air has been exhausted to
reach desired buoyancy. (Fig. 8)
3. Release pressure from button and re-position hose.
NOTE: Do not continue pressing button after all air has been exhausted from B.C.J.
Doing so may cause water to enter into inner bladder.
PLEASE NOTE:
Rapid Exhaust Valve has a pull travel limited to approximately 1/4". Pulling harder
WILL NOT increase air flow. Do not yank or jerk hard on Inflator Assembly to activate
valve, or this could lead to the damage of parts and malfunction of the system.
NOTE:
Should Rapid Exhaust Valve not operate properly, manual(oral) deflation can be
accomplished using the Manual Deflation Button.
CAUTION:
Do not press Manual(oral) Inflation/Deflation Button while exhausting air through
Rapid Exhaust Valve, as this will cause water to enter B.C.J.
It is very important to practice oral inflation method , manual deflation method and
disconnecting LP hose to prepare for any type of malfunction or emergency situation.
CAUTIONS FOR APA INFLATOR USAGE (APA TYPE)
In case of malfunction of APA power exhaust upon emergency such as damage of
internal wire, use oral exhaust method.
If the APA inflator main unit is dragged along a surface, for example when you reach
the bottom, then sand and pebbles may jam the APA deflation button and make
exhaust operation impossible. If exhaust operations do become impossible, either use
a normal exhaust operation or use the Rapid Exhaust Deflation to exhaust. After
exiting, carefully wash out the sand clogging the button with running water.
BCJ(CE)002-021 GB 10.11.17 9:35 AM ページ 8
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