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 TM 9-2330-329-14&P
VAPOR INTEGRITY TEST--Continued
0152 00
29.
Return tank and piping system to atmospheric pressure by closing emergency valve A (25).
30.
Open manifold drain valve (29) and monitor gage (30) on regulator assembly (12).
31.
Wait 5 minutes. If pressure on gage (30) does not increase, go to step 34. If pressure increases
more than 0.5 in. wc and emergency valve is leaking, go to step 32.
CAUTION
Although an emergency valve leak does not constitute a
K stamp (indicating compliance with DOT 49CF180.407 (h))
failure if the leak is internal, proper emergency valve operator
function is required for safe trailer operation.
32.
Return tank and piping system to atmospheric pressure by opening manifold drain valve (29) and
emergency valve A (25).
33.
Repair emergency valve in accordance with WP 0149 00. Restart test from step 1.
NOTE
Do steps 34 and 35 after test has been completed.
34.
Return tank and piping system to atmospheric pressure by opening manifold drain valve (29) and
emergency valve A (25).
35.
Close all valves initially opened for pneumatic leak test, to allow fuel storage.
NOTE
After successful completion of various tests, DOT
regulation 49CFR180.415 requires that a tanker be stamped
with the appropriate letter ("K" stamp for leak test), as well
as the test date (month and year).
0152 00-10
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