Preventive Maintenance Checks And Services (Pmcs); Purpose Of Pmcs; Frequency Of Performing Pmcs - ATN TTWS Series Operator's Manual

4.1. PREVENTIVE MAINTENANCE
CHECKS AND SERVICES (PMCS)

4.1.1. PURPOSE OF PMCS

PMCS is performed daily when in use to be sure that the sight is
ready at all times. Procedures listed in Table 4.1. are a systematic
inspection of TTWS that will enable you to discover defects that
might cause the sight to fail on a mission.

4.1.2. FREQUENCY OF PERFORMING PMCS

The frequency of performing PMCS is as follows:
a. Daily when the sight is in use.
b. When it is removed from the case for any reason.
TABLE 4.1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES
SEQ. ITEM TO
NO. CHECK
Complete-
1
ness
2 Sight Body
Front
3
Lens Cap
Battery
4
Compartment
5 Lenses
Objective
6
Lens
4-2
CHECKING
PROCEDURE
Inventory items by means
of comparing with the data
specified in this manual.
Inspect for missing screws
or connector cap.
Inspect for cuts, tears and
dirt. Clean as required.
Check for corrosion, springs
tension.
Inspect for cleanliness,
scratches, chips or cracks.
Clean as required.
Check to ensure the objec-
tive lens is not loose.
NOT FULLY MISSION
CAPABLE IF:
Items missing.
Screws or connec-
tor cap missing.
Cap torn or cut.
Springs corroded
or damaged.
Chipped, cracked
or if scratches
hinder vision
through the sight.
Objective lens
loose.