Servicing Manual: Crewsaver Voyager 275 Lifejacket
Project No: 00154
Date: November 2016
Issue No: 2
Page
of 36
30
.1.3.2
For United Moulders Mk5 Automatic Operating Mechanisms. See Fig 8.2
8.1.3.2.1 A new retaining clip must be fitted. Refer to Section 9 for replacement parts.
8.1.3.2.2 Fit the new automatic firing capsule to the operating head, screw hand tight.
8.1.3.2.3 Locate Operating head onto the Manifold.
8.1.3.2.4 Tighten the retaining nut onto the body using the Calibrated torque driver provided in the
Crewsaver servicing tools. Note: Retaining nut must be tightened to between 2.5 and 2.7 Nm.
8.1.3.2.5 Firmly screw the cylinder adaptor by hand into the head
8.1.3.1.6 Connect the cylinder adaptor to the pressure test unit
8.1.3.1.6 Pressurise the head to between 25 and 30 psi and release the control to its vertical position.
8.1.3.1.7 There may be a slight decrease in pressure over the first 2 seconds as the unit stabilises. Leave
for 10 seconds and check for any further decrease in pressure shown on the gauge
8.1.3.1.8 Release the pressure by turning the control to deflate.
8.1.3.1.9 If there had been any decrease in pressure remove the cylinder adaptor, remove the operating
head and check the following.
a. Thick and thin washer either side of the head.
b. Damage to the D post seating.
c. Cross thread chrome nut
d. The cylinder seating washer.
e. The schrader or pang valve in the ‘D’ post.
f. The operating head
Warning: Care must be taken not to ‘cross thread’ the connection.
8.1.3.2.10 Fit the gas cylinder to the firing mechanism by hand then check using the torque wrench and head
adaptor from the tool kit (4Nm). The operating head is gripped in one hand and the cylinder
tightened using the torque wrench with the cylinder tightening tool held in the other hand.