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CHANGE FILTER INDICATOR LIGHTS WITH CLEAN FILTER.
CHANGE FILTER INDICATOR LIGHT DOES NOT LIGHT
Technical Manual For Collective Protection Equipment, Guardrail With Accessories
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TM
3-4240-309-20&P
6. CHANGE
FILTER
INDICATOR
LIGHT
DOES
NOT
LIGHT.
Replace
PDU
(p.
2-95).
Turn
off
power.
Repeat
functional
Disconnect
P3 at
PDU
test
(p.
2-3).
and
P17/28
at
feed
thru.
Proceed
to
page
2-56.
2-55
