TM 9-2320-365-10
2-21. VEHICLE OPERATION (CONT)
g. Draining Air Tanks.
NOTE
When vehicle will not be operated for 12 hours or more or when operating
in temperatures below 50 F (10 C), air tanks should be drained.
(1) Open drain valves (1) on primary air tank (2), secondary air tank (3), and wet tank
(4) until air cannot be heard escaping.
(2) Close drain valves (1) on primary air tank (2), secondary air tank (3), and wet tank
(4).
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