21
21
23
1. Once completely dry, install cap protector (29).
2. Thread the fill port plug (21) into the fill adapter port (23)
until finger tight.
This Ends Reassembly
This concludes the service
procedures for the SEa lV-2 First
and Second Stages
Final aSSEMBly
Final TESTing
Subjective Test
1. Slowly open the SEA LV-2 First Stage valve to pressurize
the system.
2. Press the purge cover a few times to ensure there is a
strong purge.
3. Perform a subjective breathing test to ensure that the
second stage is operating properly.
immersion Test
1. Refill the SEA LV-2 to 3000 psi. Turn the SEA LV-2 valve
to the "ON" position to repressurize, and check the pressure
gauge to ensure that the SEA LV-2 cylinder is completely
filled to 3,000 psi. If the SEA LV-2 has a pin gauge, ensure
that the gauge indicates pressure.
2. Submerge the entire system in a test tank of clean water
with the valve turned all the way open. Shake the unit to
remove trapped bubbles. Observe any bubbles arising from
the submerged system over a one minute period. The rec-
ommended time is necessary due to slower bubble forma-
tion that occurs in smaller leaks. Bubbles indicate a leak,
which requires that the system must be disassembled at the
source to check sealing surfaces, assembly sequence and
component positioning in order to correct the problem(s).
NOTE
:
Do not confuse bubbles from trapped air
with a true leak. If there is an air leak, bubbles will
come out in a constant stream.
WARNING:
The SEa lV-2 is designed to assist heli-
copter crew members and passengers in emergency
egress situations from submerged aircraft. it is very
critical to ensure that no leakage is present, and that
the unit has met all requirements in the Final Testing
procedures outlined above. Do noT issue to a crew
member or passenger any SEa lV-2 which exhibits
any signs of leakage or unsatisfactory performance
until the problem has been thoroughly diagnosed
and repairs have been made as needed, including
the possible replacement of a damaged component
or subassembly.
3. As a final test, leave the unit pressurized with the valve
completely open at a stable temperature for a period of at
least twelve hours, and check the pressure gauge to deter-
mine whether any air loss has occured.
4. Upon completion of air test, ensure all water is removed
from unit. Blow clean LP air through the cap holes to remove
excess water from cap.
WARNING:
if the pressure gauge is not in the green
or the pin indicator has dropped flush with the body,
refer to trouble shooting section (table 1 &2).
NOTE
:
the regulator must be cleaned and sanitized
per local instructions before issue
