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 CONT.

TM 10-5430-242-12&P 0018 00 Change 1 0018 00-2 CAUTION Report Class III and IV leaks to supervision. 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. Class IV Leakage found under the tank. There is evidence of dampness on the ground around the tank. Volume of fuel is less than it should be.