TM 9-2330-384-14&P
4-68. PURGING TANK (Con't).
Place conductive metal or galvanized pails under drain points: front port (1) and sump drain
(6)
(8). Ground pails to tank and to semitrailer's common ground.
Pull sump drain control lever to drain all fluid from sump drain (see paragraph 2-2). Remove
(7)
front port (1) dust cap and open butterfly valve (2) (see paragraph 2-2).
NOTE
Steps 8 and 9 must be performed to drain as much fuel as possible from
emergency valve. Even after these steps have been performed, there will be
approximately 3-4 cc of fuel remaining inside piston cavity of emergency
valve.
Drain fuel from emergency valve through front port (1) by pulling on emergency valve control
(8)
lever in cabinet. After 10 seconds, push on control lever to close (see paragraph 2-2).
Repeat procedure in step 8 three more times to drain as much fuel from emergency valve as
(9)
possible.
(10) Wipe dry all spilled fuel. Wash, dry, and store any cloths or mops used, or dispose of them in
accordance with local policy.
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