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
When bleeding receiver drain cock,
ALWAYS use protection shield to protect
eyes and face from flying particles. Wear
gloves and avoid skin damage by rolling
down shirt sleeves on clothing and closing
buttons and collars.
e. Open drain cock on bottom of receiver to
drain air and water. Turn small handle
clockwise. When receiver pressure reads
0 psi, dose drain cock.
Open drain valves on bottom of air filters
1 and 2.
g. Open air station valves 1 through 5 and 7
by turning counter-clockwise until they
stop. Leave them open
h. Make sure air station valves 6, 8 and 9
Check that receiver pressure gauge indi-
cates no more than 155 psi when com-
pressor set for AUTO. If pressure
than 155 psi.
greater, pull test link on air safety valve. If
air does not escape, replace safety valve.
Valve cannot be adjusted or repaired. To
1) Shut down air compressor system.
2) Redtag power panel 1 circuit breaker
3P5 to indicate, 'WARNING - DO NOT
ACTIVATE. REPAIRS BEING MADE."
3) Unscrew safety valve.
4) Screw in new safety valve (Barge 1 -
P/N 9710-5332-00) (Barges 2 and 3 -
P/N 91A033175-001) wrench tight.
5) Start air compressor system.