TM 9-2350-277-10
THEORY OF OPERATION -- Continued
0003 00
NBC SYSTEM
NOTE
Other . arriers use the same parts but in different locations. Also, kits are added as required.
c
The quantity of orifice connectors is dependent on quantity of crew for each vehicle.
NBC
POWER
SWITCH
NBC POWER SWITCH turns on blower that draws contaminated air into the system.
M1A119 PRECLEANER AND PARTICULATE FILTER remove dust and chemical/biological particles.
GAS FILTERS remove chemical agent gases (M577A3 and M106A3 only).
ELECTRICAL AIR HEATERS allow the individual to electrically heat purified air entering his mask.
ORIFICE CONNECTORS are connectors for masks that also control air flow and closes, when not in use, to keep out dirt.
M42 MASK connects to orifice and is worn by crewmembers.
CIRCUIT BREAKER BOX provides electrical power to the NBC system.
0003 00-3
Change 2
