TM-9-2320-361-24-1 Field Maintenance Manual Volume 1 for M44A2 Series Trucks
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TM 9-2320-361-24-1 0003 00 0003 00-20 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. J I H G F E D C B A