Preventive Maintenance Checks and Services (PMCS) (Cont)
2-96. LEAKAGE CLASSIFICATION AND DEFINITION.
Extreme weather conditions, periods of high use, or combat conditions may dictate
that PMCS is performed more often than is required in the PMCS Tables.
As PMCS is performed, look for and be aware of an unusual amount of puddles, or
unusually large puddles. Excessive puddles could indicate a leakage problem.
It is necessary to know how fluid leakage affects status of fuel, oil, coolant, and
hydraulic system. The following are definitions of the type/classes of leakage
necessary to know in order to determine status of the enhancement. Learn, then be
familiar with them and REMEMBER - WHEN IN DOUBT, NOTIFY THE
Equipment operation is allowable with minor leakage (Class I or II).
Consideration must be given to the capacity in item/system being
checked/inspected. When in doubt, notify supervisor. When
operating with Class I or II leaks, continue to check fluid levels as
required in the PMCS. Class III leaks should be repaired per
(1) Class I. Seepage of fluid, as indicated by wetness or discoloration, not
great enough to form drops.
(2) Class II. Leakage of fluid great enough to form drops, but not enough
to cause drops that fall from item being checked/inspected.
(3) Class III. Leakage of fluid great enough to form drops that fall from
item being checked/inspected.