Crewsaver CREWFIT 150N JUNIOR Service Manual page 14

Crewsaver - Servicing Manual: Crewfit 150N Junior Lifejacket
Fig 3.2 UML Prosensor Operating Heads
CO cylinder
2
1 Unscrew the Automatic firing capsule from the end of the operating head. This should only be
done after the test detailed in Section 6 has been performed in order to test the old unit, or if the
operating head has already been fired. Discard and replace with a new automatic firing capsule
upon reassembly. The Capsule must be replaced if it expires before the date of the next annual
service.
2 Unscrew the CO cylinder from the operating head. Once the cylinder has been removed inspect
the Cutter O-Ring . Check the O-Ring is in place and that it is in a good condition. Take the
cylinder and check to see if the cylinder has been used. This should be performed by check
weighing. If under the minimum weight as displayed on the cylinder body, discard in a safe
manner.
3 Remove the protective cover and unscrew the retaining screw from the top of the firing head,
using the torque screwdriver. Check for corrosion and discard if corroded. Inspect the top
sealing O-ring. This must be replaced with a new part if damaged.
4 Remove the operating head from the manifold which is welded to the inflation chamber fabric.
Inspect the bottom sealing O-ring. This must be replaced with a new part if damaged.
5 Check the pull cord and toggle for fraying or damage.
Date: August 2015
Issue No: 1
AUTOMATIC
Retaining
A B
D C
screw cover
Pull cord and
toggle
2
Retaining Automatic
D C
screw capsule
with end
cover
Indicators
E
Section
Cutter O-Ring
3
Page
14
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O