UNIT PMCS PROCEDURES - TM-10-5430-238-12-P0088

TM 10-5430-238-12&P

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OPERATOR AND UNIT MAINTENANCE MANUAL

(INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)

COLLAPSIBLE FABRIC TANKS, FUEL STORAGE, 3,000,

10,000, 20,000, AND 50,000 GALLON

UNIT PMCS PROCEDURES

INTRODUCTION

General

Preventive Maintenance Checks and Services (PMCS) are performed to keep the collapsible fabric fuel

tank assembly in operating condition. The checks are used to find, correct, or report problems. Perform

PMCS each time the tank assembly is serviced. Using the PMCS table, always do PMCS in the same

order, so it gets to be a habit. With practice, maintenance personnel will quickly spot anything wrong.

Pay attention to WARNING and CAUTION statements. A WARNING means someone could be hurt.

A CAUTION means equipment could be damaged.

Before using the tank assembly, do "Before" PMCS.

During use, do "During" PMCS.

After the tank assembly is used, do "After" PMCS.

Do "Semi-Annually" PMCS once every six months.

If something is found to be wrong when performing PMCS, fix it if possible, using troubleshooting

procedures and/or maintenance procedures.

Use DA Form 2404 (Equipment Inspection and Maintenance Worksheet) to record any faults discovered

before, during, or after operation, unless they can be fixed. It is not necessary to record faults that can be

fixed. For further information on how to use this form, refer to DA PAM 738-750.

PMCS Leakage Definitions

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

following are types/classes of leakage that are used to determine the status of the collapsible fabric fuel

tank. Learn these leakage definitions and remember - when in doubt, notify supervision.

CAUTIONS

Report Class III and IV leaks to supervision or 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 supervision.

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

required in 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.

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