PMCS Leakage Definitions - TM-10-5430-239-12-P0090

TM 10-5430-239-12&P

0009 00

PMCS Leakage Definitions

It is necessary to know how fluid leakage affects the status of the collapsible fabric fuel tank. The

following are types/classes of leakage needed to be able to determine the status of the collapsible fabric

petroleum tank. Learn these leakage definitions and remember when in doubt, notify the supervisor.

CAUTION

Report Class III and IV leaks to the supervisor or to unit maintenance.

Failure to heed this caution can damage the equipment.

NOTE

Equipment operation is allowed with minor leakages (Class I or Class II).

Consideration must be given to fluid capacity in the item/system being

checked/inspected. When in doubt, notify the supervisor.

When operating with Class I or Class II leaks, continue to check fluid levels as

required in the PMCS.

Class I

Seepage of fluid (as indicated by wetness or discoloration) not great enough to form drops.

Class II

Leaks of fluid great enough to form drops but not enough to cause the drops to drip from item

being checked/inspected.

Class III Leakage of fluid great enough to form drops that fall from the item being checked/inspected.

Class IV Leakage found under the tank. There is evidence of dampness on the ground around the tank.

Volume of fuel in tank is less than it should be.

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