Revere 3SI SMLR-A I, Руководство по обслуживанию

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Page 513
Jan 23/18
TESTING AND TROUBLESHOOTING
MANUAL No.
9112
H. Suspension (Brindle) Overload test (Davit Launched Liferafts only - SMLR-D)
1. This test shall be undertaken as required at the appointed age interval or
after renewing any component or sub-assembly of the liferaft suspension
arrangement, including the floor. It must be carried out before any pressure
test(s).
CAUTION:
Use a minimum 4 ton hoist to lift the liferaft.
2. The liferaft shall be inflated to working pressure and suspended normally by
the lifting ring. The liferaft is loaded evenly using water or clean ballast bags.
3. The test loads (See Chapter 1, Table 7) are measured at the lifting ring and
imposed for a minimum of 5 minutes. Total test loads consist of the mass of
the liferaft with its full equipment and complete capacity at a rate of 182lbs.
(82.5kg) per person plus 10%.
4. The test is failed if:
• any suspension member, attachment or structural component breaks
or is damaged, or
• the nominal working pressure or the basic shape of the buoyancy
chambers is not maintained.
I. High-Pressure Hose Test
1. Attach (by adaptor) nitrogen cylinder to the CO
2
inflation hose. Ensure that
the N
2
cylinder has a minumum of 125 psi. This will allow the inlet check
valve to open and pressure test the CO
2
hoses.
2. In order to test the hose, inject N
2
into the hose for 3-5 seconds. Check
hoses and hose connection for leaks.
3. If hoses are acceptable, deflate raft and proceed to chamber testing. If either
hoses or inlet check valve in leaking, replace with new parts.