3.1 Preventive Maintenance Checks
Preventive maintenance checks and services
(PMCS) is the systematic care, service, and
inspection of equipment to be sure that the
equipment is serviceable and to prevent the
occurrence of trouble.
a. PMCS Periods. Preventive maintenance
checks and services table 3-1 lists checks to be
performed daily. If the viewer is not used
daily, it should be checked and serviced im-
mediately before going on a mission and as
soon after completion of a mission as possible.
Do not allow the viewer to go beyond one week
without performing the daily preventive main-
tenance checks and services.
b. PMCS Reporting. If you cannot correct
the defect, a higher category of maintenance
is required. Record all checks in accordance
with TM 38-750.
The first column lists the interval and sequence
that a particular check or service is required.
This column is subdivided into three columns: