TM 9-4310-397-14CAUTIONEquipment operation is allowable with minor leaks (Class I or II). Consideration must begiven to fluid capacity in the item/system being checked/inspected.When operating with Class I or II leaks continue to check fluid levels as required in your PMCS.Class III leaks should be reported immediately to your supervisor.(a)Class I is defined as seepage of fluid as indicated by wetness or discoloration but not great enough to formdrops.(b)Class II is defined as leakage of fluid great enough to form drops but not enough to cause drops to dripfrom item being checked/inspected.(c)Class HI is defined as leakage of fluid great enough to form drops that fall from item beingchecked/inspected.4-11
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