TM 9-4120-371-14
Section Il. OPERATOR PREVENTIVE MAINTENANCE CHECKS AND SERVICES
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 obseve 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 for instructions.
e. Perform weekly as well as before operations PMCS if:
(1) You are the assigned operator and have not operated the item since the last weekly.
(2) You are operating the item for the first time.
