Cressi 30628 Instrukcja użytkowania - Strona 5

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FEATURES

In order to meet the varied needs of divers, Cressi BCDs have different

features depending on the various models offered in the catalogue. We will

explain each of such features below so that they can be properly used.

AIR CELL

The air cell is the watertight part of a BCD that is inflated and deflated in order

to vary the diver's position.

A harness, or part of it, is added to the air cell so that it can be worn and the

cylinder can be positioned on it. There are different types of cells according to

their shape, the type of containing cell and the ascending buoyancy that they

are able to exert.

STANDARD AIR CELL

The Standard air cell is the most traditional and comfortable one. Its shape

is similar to a gilet; therefore, the air contained in it is distributed both at the

back and to the sides and front of the diver. Its main feature is that it wraps

the diver and makes him/her keep in vertical position.

BACK AIR CELL

These types of BCDs are characterised by an air cell located in the rear part

of the diver so as to release the front part and make the BCD lighter and

less voluminous. In addition, when it is inflated, it does not tighten the body,

while it is kept independent from the straps, thus giving you a sensation of

complete freedom of movement.

i WARNING!

IN THE BCDS WITH BACK AIR CELL, WHILE BEING ON THE

SURFACE, THE AIR MASS TENDS TO POSITION THE DIVER

HORIZONTALLY WITH HIS/HER DOWN. IN CASE OF LOSS OF

CONSCIOUSNESS, THE HEAD REMAINS IMMERSED. THEREFORE,

THEY ARE TO BE USED BY EXPERT DIVERS WHO HAVE TAKEN

SPECIALISATION COURSES.

BACKPLATE

The backplate of a BCD is the rear part that enables a correct assembly

among the cylinder, the harness and the air cell, so between the BCD and

the diver. It is a very important part because it bears the entire weight of the

diving regulator (fig. 11-12).

DOUBLE STRAP RIGID BACKPLATE

The Cressi rigid backplate is made from a lightweight aluminium alloy. It is

set apart by its ability to securely hold the tank using two straps. It features

various slots for harness adjustments.

SECURING THE CYLINDER WITH THE RIGID BACKPLATE.

The Cressi rigid backplate has two straps at the rear to fix the tank. These

straps play a very important role, as they support the entire weight of the

tank. They must therefore be tightened carefully using the special locking

buckles.

The latter are already correctly assembled when they leave the factory (fig.

12), but it is still important to learn how to do it correctly. To do so, see the

figure below, from illustration 1 to illustration 5, which explains the process

step by step.

Once the buckle is positioned as shown, proceed as follows to install the tank:

Release the strap from the velcro and loosen it as shown in illustration 6.

Position the tank by inserting it from the bottom, with the outlet valves facing

the BCD. Remove the strap from the first slot of the buckle (illustration 7).

Open the buckle by rotating it until it clicks, then tighten the strap so that it

holds the tank firmly (fig. 8). Partially close the buckle and reinsert the end

of the strap into the first slot (illustration 9). Close the buckle completely and

secure the strap with the velcro (illustration 10). At this point, the tank is held

correctly (fig. 13-14).