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TM 9-2320-304-14&P
2-4
Operating Instructions (Cont)
Section II. Operator Preventive Maintenance Checks and Services
2-3. PMCS INTRODUCTION.
This section contains PMCS requirements for the LHS system and CHU on the M1120 series vehicles. The
PMCS tables contain checks and services necessary to ensure that the LHS system and CHU are ready for op-
eration. Using PMCS tables, perform maintenance at specified intervals. Refer to TM 9-2320-279-10 for M1120
series vehicle PMCS requirements.
2-4. MAINTENANCE FORMS AND RECORDS.
a. Operator. Every mission begins and ends with paperwork. There is not much of it, but it must be
kept up. The filled out forms and records have several uses. They are a permanent record of services,
repairs, and modifications made on the vehicle. They are reports to Organizational Maintenance and to
your Commander. They are a checklist to know what was wrong with the vehicle after its last use and
whether those faults have been fixed. For the information needed on forms and records, refer to DA
PAM 738-750.
b. Organizational Maintenance. Department of the Army Forms and Procedures used for
maintenance will be those prescribed by DA PAM 738-750, The Arm Maintenance Management System
(TAMMS) (Maintenance Management Update).
2-5. PREVENTIVE MAINTENANCE CHECKS AND SERVICES.
a. Do the before (B) PREVENTIVE MAINTENANCE just before operating vehicle. Pay attention to
the CAUTIONS and WARNINGS.
b. Do the during (D) PREVENTIVE MAINTENANCE while vehicle and/or its component systems
are in operation. Pay attention to the CAUTIONS and WARNINGS.
c. Do the after (A) PREVENTIVE MAINTENANCE right after operating vehicle. Pay attention to
the CAUTIONS and WARNINGS.
d. Do the (W) PREVENTIVE MAINTENANCE weekly. Pay attention to the CAUTIONS and
WARNINGS.
e. Do the (M) PREVENTIVE MAINTENANCE monthly. Pay attention to the CAUTIONS and
WARNINGS.
f. If something does not work, troubleshoot with instructions in Chapter 3 and notify the supervisor.
g. Always do PREVENTIVE MAINTENANCE in the same order until it gets to be habit. Once
practiced, problems can be spotted in a hurry.
h. If something looks wrong and cannot be fixed right then, write it on DA Form 2404. If something
seems seriously wrong, report it to Organizational Maintenance RIGHT NOW.
i. When doing PREVENTIVE MAINTENANCE, take along the tools needed and a rag or two to
make all the checks.
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