TM 10-4320-309-14
TM 4320-14/1
2-4. PMCS PROCEDURES
a
b.
c.
The purpose of the PMCS table is to give the operator a list of preventive maintenance checks and ser-
vices to perform in order to keep the equipment operating safely and efficiently. The PMCS table also
provides the operator with the service interval between the checks and services. The service intervals
on the PMCS are as follows:
Before Operation
During Operation
After Operation
Monthly
The column “Not Fully Mission Capable If" provides the operator with the criteria that will cause the
equipment to be not ready/available for service because of inability to perform its primary function. If
equipment is found to be not fully mission capable, the operator should notify unit maintenance person-
nel.
Perform ‘monthly” as well as “before” operation PMCS if:
(1) You are the assigned operator and have not operated the item since the last monthly inspection.
(2) You are operating the item for the first time.
2-5. LEAKAGE DEFINITIONS
Equipment operation is allowable with minor leakage (Class I or II). Of course, you must consider the fluid ca-
pacity in the item/system being checked inspected. When in doubt, notify your supervisor.
When operating with Class I or Class II leaks, continue to check fluid levels as required in your PMCS. Class Ill
leaks should be reported to your supervisor or unit maintenance.
a.
Leakage definitions for operator/crew PMCS shall be classified as follows:
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 inspected.
Class III
Leakage of fluid great enough to form drops that fall from the item being checked/
inspected.
2-5
