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TM10-4930-239-12&P
Section III. UNIT PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)
4-7. INTRODUCTION.
a. Systematic, periodic, Preventive Maintenance Checks and Services (PMCS) are essential to ensure that the FSSP
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 indoctrination of operators to report all unusual conditions noted during daily
checks or actual operation to unit 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 unit preventive maintenance inspection and service should be established immediately after
installation of the fuel system. 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.
WARNING
Severe injury or death can occur from fire and explosion caused by fuel and fuel
fumes. NEVER allow open flames or hot objects to get near the FSSP.
4-8. UNIT PMCS. The FSSP has no system unit PMCS. However, the pump assemblies, filter/separators, and fuel tanks
do have unit PMCS. Refer to the applicable technical manual for these items for proper unit PMCS procedures and
perform those procedures.
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