TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download

TM9-2350-311-20-1 7-2 ENGINE COOLING SYSTEM (M109A3) (PICTORIAL) LEGEND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Surge tank drain cock Surge tank-to-pressure relief valve hose Radiator-to-surge tank hose Surge tank Engine coolant manifold connector housing Engine coolant manifold connector housing-to- engine coolant crossover tube hose Radiator Radiator fan Surge tank pressure relief valve with block, gasket, and adapter (earlier version) Engine coolant crossover tube Engine coolant manifold connector housing-to- engine coolant crossover tube hose Radiator filler cap Inlet thermostat housing-to-radiator inlet hose Inlet thermostat housing Engine coolant manifold connector housing Engine coolant manifold Engine coolant crossover tube-to-radiator vent hose Crossover tube-to-surge tank hose Radiator outlet-to-engine coolant lower tube hose Engine coolant lower tube Engine coolant lower tube-to-engine coolant main tube hose 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 Engine coolant drain valve Engine coolant main tube Engine coolant pump Engine coolant pump-to-oil cooler tube Engine coolant pump connector hose Surge tank tube-to-engine coolant main tube inlet hose Surge tank tube Surge tank hose Bypass thermostat lower housing-to-engine coolant main tube inlet hose Bypass thermostat lower housing Bypass thermostat upper housing Engine coolant manifold connector housing-to- bypass thermostat housing hose Bypass thermostat housing-to-surge tank hose Engine coolant lower tube Radiator outlet-to-engine coolant lower tube Aeration detector-to-engine coolant lower tube Aeration detector Radiator-to-aeration detector hose Surge tank-to-radiator hose Surge tank pressure relief valve (later version) 7-4