TM 5-3805-290-23-2
PREVENTIVE MAINTENANCE CHECKS AND SERVICES
(PMCS) INTRODUCTION - CONTINUED
0019 00
GENERAL PMCS PROCEDURES - CONTINUED
h.
Fluid Leakage. It is necessary for you to know how fluid leaks affect the status of your machine. The following
are definitions of the types/classes of leaks you need to know to be able to determine the status of your machine.
Learn and be familiar with them and remember: when in doubt, notify your supervisor.
C AU T I O N
Operation is allowable with Class I and Class II leaks, EXCEPT for fuel, where NO leaks are allowed.
WHEN IN DOUBT, NOTIFY YOUR SUPERVISOR. When operating with Class I or Class II leaks, check
fluid levels more frequently. Class III leaks must be reported immediately to your supervisor. Failure to do
so will result in damage to machine and/or components.
N OT E
Notify your supervisor of any leaks you cannot fix.
Leakage Definitions for Unit PMCS
Class I
Leakage indicated by wetness or discoloration, but not great enough to form
drops.
Class II
Leakage great enough to form drops, but not enough to cause drops to drip from
the item being checked/inspected.
Class III
Leakage great enough to form drops that fall from the item being checked/
inspected.
END OF WORK PACKAGE
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