TM 5-4320-200-13&P
item
When cleaning, engine must be COLD (same temperature as outside air). DO
NOT point water or stem directly at any electrical connection. DO NOT
point water stream directly at radiator fins. DO NOT use high pressure water
supply system. Damage to engine, electrical system, and other components
may result.
Equipment operation is allowable with minor leakages (Class I or II). Of course,
consideration must be given to fluid capacity in the item/system being checked/inspected.
When in doubt, notify your supervisor.
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,
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
being checked/inspected.
CLASS III Leakage of fluid great enough to form drops that fall from item being checked/inspected.
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