Instruction manual

PROFICIENCY IN SURVIVAL CRAFT AND RESCUE BOATS OTHER THAN
FAST RESCUE BOATS
8 10
12. Check that the water spray film covers the whole of the boat.
13. Ensure that all spray nozzles are clear and that the spray deflectors are not
damaged.
14. Wash down and de-grease the boat periodically (a layer of grease is
detrimental to water coverage).
Flushing through spray system pipe work
This process is essential to prevent blockages and an accumulation of
salt in the system. It should be carried out immediately after the spray system
has been used or tested.
When following this procedure, make reference to the diagrammatic
layout of the system following these instructions:
1. Arrange for suitable flexible hose supplying fresh water from the
platform/parent vessel.
2. Pass this hose through the ventilator cowls and connect it to either forward or
aft flushing points . Attached hose securely with hose clips.
3. Open flushing valve by turning anticlockwise.
4. Shut sea suction valve .
5. Leave boat after shutting all hatches. Shut all doors securely.
6. Turn on fresh water supply and leave on for about 15 to 20 minutes.
7. Observe all jets and nozzles and ensure that water is flowing freely.
8. It is quite possible that water will not discharge from the highest nozzles on the
canopy or at extremities of the boat. This is because it is extremely difficult to
match the capacity of the installed pump. However, those nozzles without a
discharge of water should be inspected thoroughly for any obstructions.
9. When flushing is finished, turn off the water supply, enter the boat and
disconnect the flexible supply hose from the flushing point , open all
flushing/drain valves in the system to ensure no pockets for water remain in the
system.
10. Close all flushing/drain valves and open the sea suction valve . The system
will now be ready for emergency use.
Maintenance and Recharging Procedure for Air Cylinder Installation
This system provides air to enable the engine to run at maximum load
rpm and for the occupants to breathe when the lifeboat is closed down and
running through fire and/or toxic gases.
Under these circumstances, the air supply will last for at least ten minutes. This
time will not vary even if the engine is running at slow speeds, or if the boat is not
fully occupied, because the excess air will escape from the over pressure device
at the aft end of the boat, preventing any excess internal air pressure.
Lever type valves on cylinders must be open when boat is to be
operational. The main activating valve on the air pressure controller controlling
the release of air into the boat must be closed at all times when the boat is to be