Section IV PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)

TM 5-4110-234-14

TO 40R7-5-7-1

Section IV PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)

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INTRODUCTION, INSPECTION AND SERVICE

a. Systematic, periodic, preventive maintenance checks and services (PMCS) are essential to ensure that the

refrigerator is ready for operation at all times. The purpose of a preventive maintenance program is to discover and

correct defects and deficiencies before they can cause serious damage or complete failure of the equipment. Any

effective preventive maintenance program must begin with the endoctrination of operators to report all unusual conditions

noted during daily checks or actual operation to organizational maintenance. All defects and deficiencies discovered

during maintenance inspections must be recorded, together with corrective action taken, on DA Form 2404 (Equipment

Inspection and Maintenance Worksheet).

b. A schedule for organizational preventive maintenance inspection and service should be established

immediately after installation of the refrigerator. A quarterly interval, equal to three calendar months or 250 hours of

operation, whichever occurs first, is recommended for usual operating conditions. When operating under unusual

conditions, such as a very dusty or sandy environment, it may be necessary to reduce the interval to monthly or even less

if conditions are extreme.

c. Table 4-1 lists the organizational preventive maintenance checks and services that should be performed at

quarterly (or otherwise established) intervals. Figure 4-11 shows the location of PMCS items. The PMCS items in the

table have been arranged and numbered in a logical sequence to provide for greater personnel efficiency and least

amount of required maintenance downtime. The "Para Ref" column on the right side of the table provides the paragraph

number where detailed, step-by-step disassembly/reassembly maintenance procedures may be found.

d. Be sure the REFRIGERATOR ON-OFF switch is in the off position. Read and observe all WARNINGS

printed in the front of this manual.

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