TM
3-4240-309-20&P
2-7. FUNCTIONAL TEST (CONT).
LOCATION
ITEM
ACTION
INDICATION/REMARKS
Open PE doors on vans
1 and 4.
ENTRANCE LOW
PRESSURE switch/
Pressure circuit
CCM
indicator lights (12) will
glow in vans 1 and 4.
LOW PRESSURE switch/
PECM
indicator lights (17) will
glow in vans 1 and 4.
MASK switch/indicator
Open van door leading
lights (10) will flash in
to PE on van 1.
vans 1, 2, 3, and 4.
Warning horns (11) will
sound in vans 1, 2, 3,
and 4.
Button will stay in
Press HORN OFF
pressed position.
buttons (22) in vans
Warning horns will stop
1, 2, 3, and 4.
sounding. MASK switch/
indicator lights (10) will
glow and
stay on.
Within 30 seconds:
Close PE doors on vans 1
and 4. Close van doors
All ENTRANCE LOW
leading to PE on van 1.
PRESSURE switch/
indicator lights (12) will
go off. Also, all the
LOW PRESSURE
switch/indicator lights
(17) on the PECMS will
go off.
MASK switch/indicator
lights (10) will go off.
All HORN OFF buttons
(22) will reset.
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