Tusa BCJ Serie Manual De Usuario página 8

• Do not press the inflation/deflation button while expelling air
through the rapid exhaust valve, as this will cause water to
enter the BCJ.
Deflation
Raise the inflation/deflation assembly to a position near the
surface of the water. Press the deflation button until enough air
has been expelled to reach the desired buoyancy. [Fig. 9]
* Do not continue pressing the button after all air has been
expelled from the BCJ. Doing so may cause water to enter
the inner bladder.
Dump Valve
To operate the dump valve on the rear of your right shoulder or
lower back, hold the knob and pull it sideways and downwards.
[Fig. 7]
APA Inflator Unit (APA Type)
Press the inflation button to take in air from the tank and obtain
buoyancy. Holding down this button can cause more air to
be taken in than necessary, so adjust the amount of air by
repeatedly pressing the button for a short while then releasing
it. 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.
Cautions Regarding APA Inflator Usage (APA Type)
If the APA power exhaust malfunctions in an emergency
(such as if the internal wire is damaged,) use the oral exhaust
method.
If the APA inflator main unit is dragged along a surface (e.g.
along a seabed,) sand and pebbles may jam the APA deflation
button and make it impossible to expel air. If it is not possible to
expel the air, either expel the air normally or use rapid exhaust
deflation to expel the air. After exiting the water, carefully wash
out the sand clogging the button with running water.
INFLATING THE BCJ
Oral Inflation
Before activating the valve, purge any water that may be
trapped in the mouthpiece by blowing a small amount of air
into the oral inflator opening. With your mouth still pressed
against the oral inflator opening, press the deflation button
as you exhale. [Fig. 8] Release the button when you inhale.
Continue this inflating process until the desired buoyancy is
achieved.
Caution:
To conserve the air in the tank, do not inflate the BCJ using
oral inflation when in the water. Otherwise this may cause a
serious accident. From the viewpoint of safety, oral inflation in
the water is prohibited unless used as an emergency measure.
Inflation
To inflate the BCJ slowly press the inflation button. [Fig. 9]
WARNING: While inflating the BCJ it is recommended to keep
your finger on the deflation button to prevent an out of control
ascent.
Over-Pressure Exhaust Valve
All TUSA BCJ are equipped with an over pressure exhaust
valve. (OPEV)
This allows the BCJ to be automatically vented should air
pressure in the inner bladder become too great.
The OPEV valve will close once the desired air pressure
is achieved, thus preventing damage to the BCJ due to
overexpansion.
8
PRE-DIVE INSPECTION
Perform the following procedures before every dive:
• Connect the QD hose to the inflator and to the pressure
reducer.
• Open the tank valve slowly after all the SCUBA is assembled.
• Check all the devices for inflation and deflation for correct
functioning: Inflate and deflate activating all the devices. If
you feel that any of the devices do not function properly,
DON'T DIVE.
• Check the rapid exhaust valve fittings, and make sure they
are tightened down properly.
• Inflate the BCJ until it feels firm. Let it stand for 30 minutes.
If the bag is not as firm as when first inflated, do not use
the BCJ. Return it to your TUSA dealer for inspection and/
or repair.
• It is important to have the APA system serviced every 12
month or after 100 dives (whichever comes first). Please see
your TUSA dealer for overhaul.
Adjusting the Cummerbund
Peel off the hook and loop fastener on the rear end of the
cummerbund which has been folded back through the
appropriate slot of the waist support panel or harness. Adjust
the length and then close the fastener. [Fig. 10]
Adjusting the Tightness Around the Arm Hole
(BCJ-9300, 4000)
There are two adjustment slots on the waist support panel.
If the shoulder straps feel too tight or too loose against your
shoulder/arm, you can adjust it by attaching the shoulder strap
to another slot. Move the metal slider to the desired slot. The
outer slot provides a wider fit, and the inner slot provides a
narrower fit. Simply pull the metal slider, turn it so it is parallel,
and slant it. Pull the metal slider out through the slot. Reinsert
the metal slider into the new slot using the same procedure.
[Fig. 11] shows the anchor belt after adjustment. If the metal
slider comes out, the BCJ may be pulled back by the weight of
the tank and slide down. Be sure to check that the metal slider
is securely fastened.
THREADING AND ADJUSTING THE TANK BELT
Thread the cam buckle as shown in [Fig. 12]. Slide the
backpack onto the tank to the desired position. Pull firmly on
the end of the belt until all slack has been removed. Check
again that the backpack is in the desired position on the tank.
To prevent the belt from becoming slack while the buckle is
lifted, attach the hook and loop fastener on the belt while doing
this. [Fig. 13] Pull the buckle to an upright position so the belt
cannot slip, and unfasten the hook and loop fastener and
thread the end of the belt through the end slot of the buckle.
[Fig. 14] Grasp the end of the belt firmly and pull the buckle
so it is closed. Attach the end of the belt to the hook and loop
fastener. [Fig. 15]
Check that the tank belt is securely fastened to the tank. Hold
the tank in place in an upright position. Hold the backpack by
the upper carrying handle, and try to move the backpack up
and down the tank. The belt should stay in place. If it moves, it
has not been tightened adequately.
To remove backpack from tank after a dive: Remove belt
end Hock & Loop fastener, and open cam buckle. Unthread
belt from end slot only of cam buckle. Slide backpack off tank.
WARNING: Proper installation and adjustment are extremely
important to ensure that the backpack performs correctly.
Improper installation on the tank may allow the tank to slip
out of the backpack. Loss of the tank could result in loss of
buoyancy control, and/or air supply, and may result in personal
injury.