TM 11-5985-334-20
Section I. GENERAL
Service Upon Receipt
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Refer to TM 11-5985-334-10, Operator's Manual, for complete instructions
on servicing the AB-621(*)/G and MK-2044/G upon receipt.
Preventive Maintenance
a. Preventive maintenance is the systematic care, inspection and servicing
of equipment to maintain it in serviceable condition to prevent breakdown,
and to assure maximum operation efficiency. Preventive maintenance is the
responsibility of all categories of maintenance concerned with the equipment.
It includes inspection and repair of replacement of parts, subassemblies, or
units that inspection indicate would probably fail before the next scheduled
periodic service.
b. Maintenance forms and records to be used and maintained on the equipment
are specified in TM 38-750.
PREVENTIVE MAINTENANCE CHECK AND SERVICES (PMCS)
Section II.
PMCS Procedure
Perform the maintenance functions indicated in the monthly preventive
maintenance checks and services chart (table 2-1) once each month unless
otherwise directed by the commanding officer. A month is defined as
approximately 30 calendar days of 8 hour-per-day operation. If the equipment
is operated 16 hours per day, the monthly preventive maintenance checks and
services should be performed at 15-day intervals. Adjustment of the maintenance
interval must be made to compensate for any unusual operating conditions.
Equipment maintained in a standby (ready for immediate operation) condition
must have monthly preventive checks and services. Equipment in limited storage
(requires services before operation) does not require monthly preventive
maintenance.
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