TM 9-6115-664-13&P
Section IV. UNIT PREVENTIVE MAINTENANCE CHECKS
AND SERVICES (PMCS)
4-6. GENERAL.
Unit Preventive Maintenance Checks and Services (PMCS) means systematic caring, inspecting, and servicing of
equipment to keep it in good condition and to prevent breakdowns. This section lists PMCS required for the APU and
authorized for the unit maintenance level. Your mission is to ensure that the APU is ready for operation at all times. It
must be inspected so that defects may be discovered and corrected before they result in damage or failure.
a.
Be sure to perform your PMCS in the same order, so it gets to be a habit. Once you have had some practice, you
will quickly spot anything wrong.
b.
Pay attention to WARNINGS, CAUTIONS, and NOTES.
c.
Perform PMCS tasks at the intervals noted in Table 4-3. Do not skip PMCS intervals.
d.
Use DA Form 2404 or 5988E (Equipment Inspection and Maintenance Worksheet) to record any faults you
discover, unless you can fix them. You DO NOT need to record faults that you fix.
4-7. PMCS PROCEDURES.
a.
Your Preventive Maintenance Checks and Services, Table 4-3, lists inspections and care required to keep your
APU in good operating condition.
b.
The "INTERVAL" column of Table 4-3 tells you when to do a certain check or service. Intervals are based on
operating hours, unless otherwise noted.
c.
The "PROCEDURE" column of Table 4-3 tells you how to do required checks and services. Tolerances,
adjustment limits, and instrument readings are included as applicable. When replacement or repair of a component is
required, the procedures column will direct you to the appropriate task.
NOTE
Terms "ready/available" and "mission capable" refer to same status: Equipment is
on hand and ready to perform its combat missions. (See DA Pam 738-750).
d.
The "NOT FULLY MISSION CAPABLE IF" column in Table 4-3 tells you when your APU is nonmission capable
and why the APU cannot be used.
e.
If the APU does not perform as required, perform unit level troubleshooting, Section V.
f.
If anything looks wrong and you can't fix it, write it on your DA Form 2404 or 5988E. IMMEDIATELY report it to
your supervisor.
4-6
