6-2
6.1. PREVENTIVE MAINTENANCE
A. PURPOSE OF PMCS
PMCS is performed daily when in use to be sure that the NVM-14 is
ready at all times. Procedures listed in Table 6.1 are a syste-matic
inspection of the NVM-14 that will enable you to discover defects
that might cause the sight to fail on a mission.
B. FREQUENCY OF PERFORMING PMCS
The frequency of performing PMCS is as follows:
1. Daily when the NVM-14 is in use.
ITEM
NO.
LOCATION ITEM
VICE
PROCEDURE
NOT FUNCTION
ING AT OPTIMAL
LEVEL IF
1 Maintenance
Open carrying case, inventory
items.
Previously recorded faults on
maintenance records.
Not Current.
Fault not
corrected.
MONOCULAR
2
Optical
Surfaces
Inspect lens for dirt, fingerprint
residue, chips, or cracks. If
necessary, clean and dry lens
with water and lens tissue.
Scratches or
chips hinder
vision with mon-
ocular turned
on, or if cracks
are present.
3
External
Surfaces
Inspect for cracks or damage.
Scratches and gouges are OK
if operation is not affected
Cracked or
damaged.
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