TM 9-2350-247-20-2
DRAIN COOLING SYSTEM (M548A1) -- Continued
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8.
After cooling system is drained, close seven drain valves as follows:
a.
One drain valve (1) on oil cooler.
b.
Three drain valves (2) on engine block.
c.
One drain valve (3) on thermostat housing.
d.
Two drain valves (4) on coolant hoses.
9.
Place hose (5) back inside engine compartment.
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