TM 3-4240-286-20&P
INDICATION/REMARKS
ACTION
ITEM
LOCATION
Open protective entrance door.
ENTRANCE LOW PRESSURE
Compartment
light (11) will light.
Control
Module
LOW PRESSURE light (15) will
Protective
light.
Entrance
Control
Module
Within 30 seconds:
Close protective entrance and
ENTRANCE LOW PRESSURE
shelter doors.
light (11) will go off. Also, the
LOW PRESSURE light (15) on
the protective entrance control
module will go off.
MASK light (9) will go off. HORN
OFF button (20) will reset.
Filter unit must be operating.
Disconnect tubing (21) (green dot).
Power
CHANGE
FILTER indicator
Distribution
light
Unit
2-7