Instruction manual

PROFICIENCY IN SURVIVAL CRAFT AND RESCUE BOATS OTHER THAN
FAST RESCUE BOATS
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operational. This valve is to be opened when required for use in fire and/or toxic
gas conditions. Check the pressure gauge regularly to ensure that the pressure
does not fall below 200 bar.
Should the gauge register below 180 bar the cylinder must be recharged
to its maximum of 200 bar.
However, should the pressure gauge register a low reading, a check for air leaks
should be carried out before recharging. The following procedure should be
followed:
Mix a strong solution of water and soap in a suitable receptacle and,
with a small brush, cover liberally all joints and connections. Should there be
serious leaks of air, bubbles will appear in the solution. If this occurs, tighten the
appropriate connection and retest. Should the leak persist, repair as necessary.
Normal Recharging Procedure
a). The main activating valve must be in the closed position.
b). The lever type valves at the air bottles must be fully open.
c). Remove plug from the inward side of the non-return valve.
d). Attach connection from recharging unit to the non-return valve.
e). Recharge the cylinders until the gauge registers 200 bar. (It will be necessary
to allow the cylinder to cool in order to measure the correct pressure). Having
cooled, top-up as necessary.
f). Remove recharging unit connection.
g). Replace plug on non-return valve.
Notes:
The air supplied for bottle recharging must be of breathing quality. It
must be oil-free, clean and with a water content of not more than 3 – 4 p.p.m.
Excessive moisture will cause misting of the inner surfaces of the air cylinder and
also can result in severe icing around the pressure controller and orifice when in
the process of discharging.
If it is necessary to test the air system, facilities must be available for the
immediate recharging of the bottle after the test.