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TM 10-4320-307-10
Section II. OPERATOR/CREW PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)
2-2
GENERAL.
a.
Before you operate. Always keep in mind the WARNINGS and CAUTIONS. Perform your before
PMCS.
b.
While you operate. Always keep in mind the WARNINGS and CAUTIONS. Perform your during
PMCS.
c.
After you operate. Be sure to perform your after PMCS.
d.
Weekly. Be sure to perform your weekly PMCS.
e.
If your equipment fails to operate. Troubleshoot with proper equipment. Report any deficiencies using
the proper forms. See DA PAM 738-750.
2-3
PREVENTIVE MAINTENANCE CHECKS AND SERVICES.
a.
Table 2-2 lists the preventive maintenance checks and services which shall be performed at specified
intervals by the operator/crew.
b.
Item numbers are assigned to each check or service task. These numbers are to be used as a source
of item numbers for the TM Item Number column on DA Form 2404, Equipment Inspection and
Maintenance Worksheet, in recording results of PMCS.
c.
The service intervals are divided into four categories: Before Operation, During Operation, After
Operation and Weekly.
d.
The ITEM TO BE INSPECTED column lists the item to be checked or serviced. This column is
combined with the PROCEDURE column.
e.
The PROCEDURE column describes the procedure by which the check or service is to be performed.
Illustrations are included to assist in locating that part of the equipment requiring the check or service.
When instructions for removal of assemblies or equipment are required in order to perform PMCS, they
are listed and illustrated in the PROCEDURE column.
f.
The EQUIPMENT IS NOT FULLY MISSION CAPABLE IF: column contains the criteria that will cause
the equipment to be not ready/available for service because it is unable to perform its primary mission.
If equipment is found to be NOT FULLY MISSION CAPABLE, the operator should notify unit
maintenance personnel.
g.
Leakage categories for operator/crew PMCS shall be classified as follows:
(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 to drip from
item being checked/inspected.
(3) Category Class III Leakage of fluid great enough to form drops that fall from the item being
checked/ inspected.
CAUTION
Equipment operation is allowable with minor leakage’s (Category Class I or II).
Of course, you must consider the fluid capacity in the item/system being
checked/inspected. When in doubt, notify your supervisor.
When operating with Category Class I or Category Class II leaks, continue to
check fluid levels as required in your PMCS.
Category Class III leaks should be reported to your supervisor or unit
maintenance.
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