Table 7-2. Preventive Maintenance Checks and Services for Compressed Air System (Continued)
Q - Quarterly
S - Semiannually
A - Annually
CHECK FOR AND HAVE
IS NOT READY/
REPAIRED OR ADJUSTED
B D A D W M Q S A
6) When receiver pressure gauge reads
Air does not
at least 100 psi, check receiver safety
valve by pulling safety link. If air does
not escape from receiver valve repeat
above procedures to install another
new safety valve.
7) Remove redtag from power panel 1
circuit breaker 3P5.
Check that air pressure gauges on air
pressure regulators 1 and 2 indicate 40
psi. If not, set pressure regulators 1 and
2 by turning adjusting screw on bottom
of regulator clockwise to decrease and
counterclockwise to increase air pres-
sure beyond regulator.
Check for normal operation - when set
Air pressure does
on AUTO, compressor cycles on and off
not maintain nor-
to maintain proper air pressure. If not
normal, shut down using extended shut-
down procedures and troubleshoot.
Make repairs/adjustments as required.
DO NOT use compressed air to clean cloth-
ing or work space. High pressure (HP) air
turns small particles into dangerous projec-
tiles that may cause bodily injury.
When using compressed air to clean equip-
ment, ALWAYS use protective shield to pro-
tect eyes and face from flying particles.
Wear gloves and avoid skin damage by
closing buttons and collars and rolling
down sleeves on clothing.