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Mustang Survival MSV971 Life Preserver and Survival Vest
Description and Maintenance Instructions
9 June 2004, Rev: 1.0
6.5 ORAL INFLATOR VALVE
6.5.1
6.6.1
6.7.1
The oral inflator valve is not repairable and should be replaced when it is proven defective. To
replace the valve, perform the following:
a. Remove the crimp ring. Grab the crimp ring with the tip of a side cutter tool and cut.
b. Immerse the end of the oral tube in hot water long enough for the tube to soften.
c. Ease the valve out by applying pressure to the tube just below the valve.
d. Install a new valve (the tube may have to be softened again in hot water).
CAUTION: DO NOT allow water to enter the inflatable cell.
e. Install a new crimp ring using the oral valve crimp ring tool.
f. Perform the Oral Inflator Valve Test as detailed in section 5.6.
NOTE: If either oral inflation tube is cracked or leaking, the inflatable cell must be
scrapped.
6.6 CO
2
INFLATION DEVICE
The CO
2
inflation device is not repairable and replace it when proven defective. To replace
either the manual CO
2
inflation device:
a. Remove the
9
/
16
inch (14 mm) cap nut and discard the upper sealing gasket.
b. Remove the CO
2
inflation device by lifting it off the inflation manifold valve.
c. Remove and discard the lower and upper sealing gaskets.
d. Remove and replace the core valve, if necessary.
e. Install a new lower sealing gasket.
f. Install a new CO
2
inflation device.
g. Install a new upper sealing gasket.
h. Install a cap nut and tighten to a torque of 8.0 inch-pounds using a calibrated torque
wrench.
i. Perform the CO
2
Inflation Device Test outlined in section 5.8.
6.7 INFLATABLE CELL
NOTE: There shall be no repairs to the inflatable cell.
To replace the inflatable cell:
a. Remove the inflatable cell from the protective container by carefully cutting the self-
locking plastic tie away from the lacing anchor loops and discarding. Unsnap the
survival vest anchor straps from the grommets at the bottom of each cell lobe and
remove the Velcro™ lifting strap. The cell can now be easily separated from the
container.
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