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 TM 55-1905-219-14-2
2-87. DRAINING THE FIREMAIN SYSTEM.
a.
The firemain system must be drained after use in freezing weather. Refer to Figure FO-43.
b.
Open drain valves as follows:
(1) Reefer Room (2-28-0-A).
Rotate valve (1) counter-clockwise.
(2) Aft Engine Room (2-56-0-E).
Rotate valve (2) counter-clockwise.
c.
After draining is complete
Rotate valves (1 and 2) clockwise.
2-421
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