PMCS Leakage Definitions - TM-10-5430-238-12-P0064

TM 10-5430-238-12&P

0009 00

PMCS Leakage Definitions

It is necessary to know how fluid leakage affects the status of the collapsible 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 supervision.

CAUTION

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

Failure to heed this caution can damage the equipment.

NOTES

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

Leakage of fluid great enough to form drops but not enough to cause 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

Leaks found under the tank. There is evidence of dampness on the ground around the

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

NOTE

When a check and service procedure is required for both weekly and

before intervals, it is not necessary to perform the weekly procedure

during the same week in which the previous procedure was done.

The "Procedure" column of Table 1 explains how to do the required checks and services. Carefully follow

these instructions. When the procedure instructs, notify supervision.

The "Equipment Not Ready/Available If" column explains when and why the equipment cannot be used.

0009 00-2