TM 9-4120-403-14
Section II OPERATOR'S 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.
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