TM 5-4310-376-14
Section II. OPERATOR'S PREVENTIVE MAITENANCE CHECKS AND SERVICES (PMCS)
2-2. GENERAL
Operator's Preventive Maintenance Checks and Services (PMCS) are required inspections and
care of your equipment necessary to keep it in good operating condition.
2-3. PREVENTIVE MAINTENANCE CHECKS AND SERVICES PROCEDURE
a. Routine checks like equipment inventory, cleaning, dusting, washing, stowing items not
in use, and checking for loose nuts and bolts are not listed as PMCS checks. They are things
that you should do anytime you see they must be done. If you find a routine check like one of
those listed in your PMCS, it was listed because other operators reported problems with this
item.
b. Explanation of INTERVAL column of PMCS chart.
Always keep in mind all CAUTIONS and WARNINGS when
P M C S are performed.
Perform your Before (B) PMCS to be sure the compressor is
BEFORE YOU OPERATE
ready to use.
Perform your During (D) PMCS while you operate your compres-
WHILE YOU OPERATE
sor to help spot small problems before they become big prob-
lems.
Be sure to perform your After (A) PMCS to be sure the com-
AFTER YOU OPERATE
pressor is ready for the next operator.
In general, Monthly (M) PMCS and Quarterly (Q) PMCS are important Preventive maintenance
checks and services you make at those intervals to keep serious problems from suddenly hap-
pening.
c. Explanation of EQUIPMENT IS NOT READY/AVAILABLE IF: column of PMCS chart.
This column tells why your equipment cannot be used. An entry in this column will:
(1) Identify conditions that make the equipment not ready/available for readiness reporting
purposes.
(2) Deny use of the equipment until corrective maintenance has been performed.
d. You should perform W-PMCS as well as B-PMCS if:
(1) You are the assigned operator and have not operated the compressor since the last
W-PMCS.
(2) You are operating the compressor for the first time.
