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 82 of 1176
TM 9-2320-361-24-1
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THEORY OF OPERATION (Contd)
SPECIAL PURPOSE BODIES (Contd)
M50A3 Water Tank System Operation:
Water can be dispensed either by gravity or under pressure
by operating a delivery pump driven off the transfer case PTO. When operating in temperatures below
32° F (0° C), engine exhaust heat is diverted under water tanks to prevent water from freezing.
WATER DISCHARGE HOSES
– Used to deliver water from tank compartments.
STRAP
– Used to secure manhole cover during artic operation when heaters are installed in tank
openings.
WATER LEVEL GAUGE
– Dipped into tank compartments to measure water levels.
WATER SUCTION STRAINER
– Attached to water suction hose to prevent foreign matter from
entering tank.
Y–COUPLING
– Attached to the line discharge/suction valve to facilitate delivery of two streams of
water at the same time.
WATER SUCTION HOSES
– Used to fill tank compartments when gravity fill cannot be used.
GRAVITY DELIVERY LINE SUCTION VALVE
– Turning handle to the left allows water flow
through gravity delivery line.
PUMP DELIVERY LINE SUCTION VALVE
– Turning handle to the left allows water flow through
pump delivery line.
COMPARTMENT VALVE LEVERS
– When pulled back, opens discharge valves which control flow
of water from tank compartments.
WATER DISPENSER NOZZLE
– Controls flow of water at the point of delivery.
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