CHECK FOR AND HAVE
REPAIRED OR ADJUSTED
IS NOT READY
B D A
D W M Q S
Table C-1. Preventive Maintenance Checks and Services for Compressed Air System (Continued)
B - Before
D - Daily
Q - Quarterly
D - During
S - Semiannually
A - After
M - Monthly
A - Annually
e. Check receiver safety valve on all com-
pressors (Barges 1, 2, and 3).
1) Pull up on safety link on safety valve
Air does not
on top of receiver. Air should escape
System MUST NOT be operated without an
operating receiver safety valve. In the event
that the compressor continues to run
beyond factory set pressure, this valve
reduces receiver pressure to a safe level.
2) If air does not escape, replace
receiver safety valve. This valve can
not be adjusted or repaired. Replace
(a) Shut down air compressor system.
(b) Redtag power panel 1 circuit
breaker 3P5 indicating,
WARNING - DO NOT ACTIVATE.
REPAIRS BEING MADE."
Unscrew safety valve.
(d) Screw in new safety valve (Barge
1 - P/N 9710-5332-00) (Barges 2
and 3 - P/N 91A033175-001)
(e) Start air compressor system.
When receiver pressure gauge
reads at least 100 psi, check
receiver safety valve by pulling
safety link. Air should escape from
receiver thru valve. If not, repeat
above procedures and install
another new safety valve. This
valve is NOT adjustable or
(g) Remove red tag from power panel
1 circuit breaker 3P5.