SERVICE MANUAL
Page 517
CHAPTER 5
9107
May/12
CHAPTER 5
Page 517
Oct/11
283
SERVICE MANUAL
ISO 9650
4.7 Floor seam test
4.7.1
A floor seam test is to be carried out on each liferaft at each service
from the tenth year of the liferaft’s life, unless earlier servicing is
deemed necessary as a result of visual inspection.
4.7.2 To facilitate the test, a proper test frame as shown is recommended,
(FIGURE 508).
4.7.3
Perform the floor seam test as follows:
(a)
Make sure the liferaft is inflated to working pressure.
(b)
Put the inflated liferaft on top of the floor seam test frame.
(c) A person of at least 82.5 kg (182 lbs) weight must walk around
the perimeter of the floor for the entire circumference, close as
possible to the buoyancy.
(d)
Examine the floor seam around the underside of the lower
buoyancy. If the floor has detached from the buoyancy at any
point, repair within the limits of Chapter 6.
4.8 Function test
4.8.1 A full function test may be demanded by the local Inspecting
Authority. This test may be done either with a packed or unpacked
liferaft.
4.8.2
The load required to initiate inflation of the liferaft shall not exceed
15.3 kgf (33.73 lbf) when measured on a spring balance.
4.8.3
All buoyancy chambers must fully inflate and pressure relief valves
function. Working pressure must be obtained after no more than 60
seconds at an ambient temperature of 18
o
C to 20
o
C (64.4
o
F to 68
o
F).
4.8.4 The working pressure should be determined by the reseat of the
relief valves. The pressure relief valves should be fully operational.
