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TM 9-4120-389-14
SECTION II OPERATOR PREVENTIVE MAINTENANCE
CHECKS AND SERVICES (PMCS)
2-4. GENERAL.
Preventive Maintenance Checks and Services (PMCS) are essential to the efficient operation of the air
conditioner and to prevent possible damage that might occur through neglect or failure to observe warning
symptoms in a timely manner. Checks and services performed by operators are limited to those functions
which are described in Table 2-1.
a. Before You Operate. Always keep in mind and observe the WARNINGS and CAUTIONS. Perform
your before (B) PMCS.
b. while You Operate. Always keep in mind and observe the WARNINGS and CAUTIONS. Perform your
during (D) PMCS.
c. After You Operate. Be sure to perform your after (A) PMCS.
d. If Your Equipment Fails to Operate. Troubleshoot with proper equipment. Report any deficiencies
using DA form 2404. See DA PAM 738-750, The Army Maintenance Management System (TAMMS), for
instructions.
e. Perform weekly (W) as well as before operations PMCS if:
(1)
You are the assigned operator and have not operated the item since the last weekly check.
(2)
You are operating the item for the first time.
NOTE
If the equipment must be kept in continuous operation, check and service only
those items that can be checked and serviced without disturbing operation. Make
the complete checks and services when the equipment can be shut down.
2-5
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