DRAINING AND FLUSHING FOAM TANKS.

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TM-9-2320-279-10-3 M977 Series 8x8 Heavy Expanded Mobility Tactical Trucks (HEMTT) Manual

DRAINING AND FLUSHING FOAM TANKS. (Cont)

TM 9-2320-279-10-3

Operation Under Usual Conditions (Cont)

2-132. DRAINING AND FLUSHING FOAM TANKS.

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NOTE

Foam drained from foam tanks will need to be drained

into properly marked and sealed containers.

Foam tank B shown.

a. Gather suitable containers.

b. Attach drain hose (1) to FOAM TANK DRAIN valve (2).

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c. Open expansion dome hatch (3).

d. Put FOAM TANK DRAIN valve handle (4) in open position and

completely drain foam into containers.

e. Put FOAM TANK DRAIN valve handle (4) in closed position.

Properly label the sealed containers when foam is completely drained

from foam tank.

g. Remove fill tower screen from foam tank.

NOTE

Defoaming agent can be used in assisting to clean foam tanks.

Defoaming agent and water must be added into foam

tank that is being flushed.

h. Add defoaming agent into foam tank.

i. Fill foam tank with warm water.