ARMY TM 9-4120-380-14
AIR FORCE TO 35E9-136-21
Section II. OPERATOR PREVENTIVE MAINTENANCE
CHECKS AND SERVICES (PMCS)
2.3.1 General. Operator 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 these functions which are
described in table 2-1. Your Preventive Maintenance Checks and Services table lists the inspections and care of your
equipment required to keep it in good operating condition.
Before you operate. Always keep in mind the CAUTIONS and WARNINGS Perform your before PMCS.
While you operate. Always keep in mind the CAUTIONS and WARNINGS Perform your during PMCS.
After you operate. Be sure to perform your after PMCS.
If your equipment fails to operate. If your equipment does not perform as required, refer to table 3-1 for possible
problems Report any malfunctions or failures on the proper DA Form 2404 or refer to DA PAM 738-750.
2.3.2 PMCS Columnar Entries. The PMCS table column headings and column entries are defined in the following
"Item Number" Column. This is the order in which you perform checks and services on the air conditioner. The
entry in this column will also be used as a source of Item numbers for the "TM Item Number" column on DA Form
2404, Equipment Inspection and Maintenance Worksheet, in recording results of PMCS.
"Interval" Column. The interval column of your PMCS table tells you when to do a certain check or service.
"Item To Check/Service" Column. Identification of Item to be inspected.
"Procedure" Column. The procedure's column of your PMCS table tells you how to do the required checks and
services. Carefully follow these instructions If you do not have the tools, or If the procedure tells you to, have the
next higher level of maintenance do the work.
"Not Fully Mission Capable If" Column. Entries in this column will be keyed specifically to checks listed in the
"Procedure" column for the purpose of Identifying, for the check, the criteria that will cause the equipment to be
classified as not fully mission capable because of inability to perform its primary Combat Mission. An entry in this
Identify conditions that make the equipment not fully mission capable for readiness reporting.
Deny use of the equipment until corrective maintenance has been performed.