Revere Coastal Commander 2.0, Service Manual

Page: 62 / 170

FUNCTION TEST PROCEDURES
May 24, 2018
4 - 14
Testing
9120
GENERAL
A full function test is not required for normal service. The following items listed will need to be
assessed for proper operation and restored if they are non-functional. Refer to Chapter 7 – Repair for
repair/replacement instructions for failed components.
LIGHT
Check the unit expiration date. Replace unit if expired or will expire before next inspection date.
Check the unit for visual signs of damage and deterioration. Remove activation pin to test for strobe;
replace pin after strobe has been confirmed. Replace as necessary.
TOPPING-OFF VALVES
Check the valve for leaks. If the valve seat is suspect, insert a finger to depress the valve check. This
will allow escaping air to dislodge any foreign matter which may be causing faulty seating. Remove
the probe and recheck for leaks. If leaks cannot be rectified, replace the valve.
PRESSURE RELIEF VALVES (OVERPRESSURE TEST)
1. Fit a plug into the relief port of the valve
2. Using clean, dry shop air, inflate the compartment to 2.31psig (1-1/2 times the working pressure
of 1.54psi.). Let sit for 10 minutes.
3. Compensate the pressure and let sit for an addition 30 minutes. Observe the seams of the liferaft
for any breakage or displacement. During this 30 minutes, the pressure should not drop below
2.20psi. (5% drop)
4. Reduce chambers back to working pressure of 1.54psi.
5. Connect the manometer to the chamber and remove the plug from the valve port.
6.
Spray a solution of soapy water on top of the pressure relief valve.
7. Continue to inflation the liferaft and record the pressure with a manometer at the moment of new
bubble formation. This indicates that the relief valve has opened to release excess pressure.
8. Record the pressure with a manometer at the moment of new bubbles stop forming. This
indicates that the relief valve has closed.