TM 5-2350-377-13&P
FIELD MAINTENANCE
FIELD PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) INTRODUCTION
GENERAL
1. To ensure that the M9 ACE is ready for operation at all times, it must be inspected systematically so that
defects can be detected and corrected before they result in serious damage or failure. Field Preventive
Maintenance Checks and Services (PMCS) (WP 0020) contains a listing of preventive maintenance checks
and services to be performed by Field Maintenance personnel.
2. While performing PMCS, read and follow all safety instructions found in the warning summary at the front
of this manual. Keep in mind all WARNINGs and CAUTIONs.
SERVICE INTERVALS
The Field PMCS procedures (WP 0020) are "Semiannual" and should be performed once every six months.
REPORTING REPAIRS
Report all defects and corrective actions on DA Form 2404 or DA Form 5988-E. If a serious problem is found, report
it to your supervisor immediately.
GENERAL PMCS PROCEDURES
1. Keep equipment clean. Dirt, oil, and debris may cover up a serious problem. Clean as you work and as
needed. Use cleaning solvent on all metal surfaces. Use dishwashing compound and water on rubber,
plastic, and painted surfaces.
2. While performing PMCS, inspect the following components:
a. Bolts, Nuts, and Screws. Make sure they are not loose, missing, bent, or broken. Tighten any that
are loose.
b. Welds. Inspect for gaps where parts are welded together. Report bad welds to your supervisor.
c.
Electrical Wires or Connectors. Inspect for cracked or broken insulation, bare wires, and loose
or broken connectors. Make repairs or replace as required.
d. Hoses, Lines, and Fittings. Inspect for wear, damage, and leaks. Make sure clamps and fittings
are tight. If a leak originates from a loose fitting or connector, tighten it. If a component is broken or
worn out, correct problem as authorized by the Maintenance Allocation Chart (MAC). If not
authorized, report it to your supervisor.
SPECIFIC PMCS PROCEDURES
1. Field PMCS procedures are listed in Field Preventive Maintenance Checks and Services (PMCS)
(WP 0020). Always perform PMCS in the order listed. Once your routine becomes a habit, anything that is
not right can be spotted in a minute. If anything wrong is discovered through PMCS, perform the appropriate
troubleshooting task (WP 0010). If any component or system is not serviceable or if a given service does
not correct the problem, notify your supervisor.
2. Before performing Field PMCS (WP 0020), read all the checks required and prepare tools needed to make
all checks. Have several clean rags handy. Perform ALL inspections at interval.
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