TM 9-2320-392-10-2
M1083A1 SERIES PREVENTIVE MAINTENANCE
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CHECKS AND SERVICES (PMCS) - Continued
INTRODUCTION - Continued
LEAKAGE DEFINITION
CAUTION
Equipment operation is allowable with minor leakages (Class I or II) except
for fuel leaks. Consideration must be given to the fluid capacity of the item or
system being checked. When in doubt, ask your supervisor.
When operating with Class I or II leaks, continue to check fluid levels as
required in your PMCS.
Class III leaks must be reported to Field Maintenance. Failure to comply may
result in damage to equipment.
It is necessary to know how fluid leakage affects the status of the vehicle. The following
are definitions of the classes of leakage an operator or crewmember needs to know to be
able to determine the condition of the leak. Learn and then be familiar with them, and
REMEMBER - WHEN IN DOUBT, ASK YOUR SUPERVISOR.
Leakage Definitions for Crew/Operator 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.
CLASS III - Leakage of fluid great enough to form drops that fall from the item being
checked.
INSPECTION
Look for signs of a problem or trouble. Senses help here. You can feel, smell, hear, or see
many problems. Be alert when on the vehicle.
Inspect to see if items are in good condition. Are they correctly assembled, stowed,
secured, excessive worn, leaking, corroded, or properly lubricated? Correct any problems
found or notify Field Maintenance.
0103 00-3
