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16
D
EPTH AND OPERATING ENVIRONMENTS
DO NOT EXCEED THE MAXIMUM OPERATING DEPTH!!!
The dive is already VERY DANGEROUS at that depth.
INCORRECT USE OF THE ADV
IN SUCH ENVIRONMENTS INCREASE DIVING HAZARDS.
It is important to remember that maximum diving vehicle operating depth refers to the ADV
in prime conditions. Collisions, scratches or deformations significantly reduce this limit.
16.1 O
BSTRUCTED ENVIRONMENTS
Dives in such environments are already
VERY DANGEROUS.
INCORRECT USE OF THE ADV IN SUCH ENVIRONMENTS INCREASES THE DIVING
HAZARDS.
For example: if the control valves are hit accidentally whilst travelling at high
speeds, these may break, with obvious consequences.
DIVING IN SUCH
ENVIRONMENTS REQUIRES ADEQUATE TRAINING BY QUALIFIED AGENCIES
. It is
hereby emphasized that the running time of both the ADV and the breathing gas must be
planned in such a manner that every team member has TWICE the necessary resources
available. It is also obligatory to carry another extra ADV.
16.2
M
UDDY OR SUSPENSION
-
FILLED ENVIRONMENTS
These include those environments, obstructed or otherwise, in which visibility may
suddenly fall to zero due to the suspension that is created by moving the bed sediment.
Dives in these environments are already
VERY DANGEROUS. INCORRECT USE OF
THE ADV IN SUCH ENVIRONMENTS INCREASES THE DIVING HAZARDS.
DIVING IN SUCH ENVIRONMENTS REQUIRES ADEQUATE TRAINING BY QUALIFIED
AGENCIES.
For example: the rotating propeller that faces downwards can lift a considerable amount of
suspension.
Accidental activation of an emergency ADV in tow may create highly critical
situations.
17
P
OSITIONS AND BEHAVIOURS TO BE AVOIDED WHEN DIVING
The diver’s head or other body parts should never be beyond the
propeller conveyor (5) (see fig. 1) where flow is suctioned.
Do not direct the flow from the conveyor at you. This thwarts the
propulsion drive and could move your equipment away from you.
Do not ride the ADV.
Do not attach the ADV to your tanks or their supports in any way.
Do not attach the ADV to your body, legs, arms or other parts in any way.
Do not use more than one ADV simultaneously.
Do not start the ADV with body parts other than your right hand.
