Instruction manual

PROFICIENCY IN SURVIVAL CRAFT AND RESCUE BOATS OTHER THAN
FAST RESCUE BOATS
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includes a fresh water connection to flush through the system after testing the
sprinklers and an outlet valve to pump the water out of the lifeboat without using
the water spray system.
b) Air Support System :
The compressed air system has a sufficient capacity of 2x40 lt (200 bar)
bottles to provide air for the maximum number of persons and engine combustion
for a maximum of 10 minutes, to establish an over pressure inside the lifeboat to
prevent ingress of toxic fumes or gas during fire. The pressure reducer and all
the system can easily be controlled by the helmsman. It is possible to recharge
the air cylinders from the ship’s compressed air system without changing their
places.
Spray system
(of the MK V TOTALLY ENCLOSED SURVIVAL CRAFT HellasWatercraft)
The water spray system in conjunction with the air system enables the
lifeboat to proceed through oil fires without the occupants being harmed. If
should be noted that whereas the water spray system will continue to operate for
and unlimited time, the air system has a duration of not less than ten minutes,
and fire protection is thus limited to that time.
A pump, driven by a toothed belt from the engine, takes seawater from
an inlet valve in the bottom of the boat and pumps it through a system of pipes to
nozzles on the lifeboat canopy. The water is spread evenly in a thin film over the
whole surface of the boat by means of deflector plates fitted over the nozzles.
General maintenance of the system is as follows:
1. Check that the drill plate on the seawater inlet valve is clear and firmly fixed.
2. Check that the main water supply valve operates freely, from fully closed to
fully open positions.
3. Check that the clips securing the hose to the pump are tight but not seized.
4. Ensure that the pump mounting bolts are secure and that the pump is aligned
correctly.
5. Check that the toothed belt tension is correct (refer to this section of the
manual).
6. Should it be suspected that the pump is not running freely, a check should be
made by removing the belt and rotating the pump by hand.
7. Grease pump by rotating grease cup. Do not over tight greaser.
8. Check delivery hose.
9. Check hose clips on delivery side of plump for tightness and ensure that they
are not seized.
10. Check all points for leaks.
11. Ensure that the spray pump drain line fixings are secure and that the drain
valve is operational.