TM-9-2320-361-24-1
2-1/2 TON, 6X6, M44A2 SERIES TRUCKS
TECHNICAL MANUAL; FIELD AND SUSTAINMENT MAINTENANCE PART 1 OF 2
AUGUST 2006
TM-9-2320-361-24-1 - Page 87 of 1176
TM 9-2320-361-24-1
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THEORY OF OPERATION (Contd)
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COMPRESSED AIR SYSTEM
The compressed air system takes filtered air, compresses it, and supplies it to various components
within the vehicle. The components of the air system and air actuated accessories are as follows:
AIR COMPRESSOR
– Draws in air, filters it, pressurizes it, and forces it into air reservoirs for
storage.
AIR HORN
– Receives air from the compressed air system in order to operate.
GOVERNOR
– Automatically opens or closes a valve inside air compressor to ensure a sufficient
quantity of compressed air is available for air system.
PRESSURE GAUGE
– Indicates amount of pressurized air available in air system. Normal
pressure is 85–120 psi (586–827 kPa).
SAFETY VALVE
– Prevents excessive pressure to build up in air system by releasing air when
necessary.
AIR RESERVOIRS
– Store pressurized air for use in air system and traps water to protect
air-operated accessories from corrosion and freezing.
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