4-2
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 3-1 are a systematic
inspection of the PS-27 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.
NO.
ITEM TO
CHECK
CHECKING PROCEDURE
NOT FULLY MISSION
CAPABLE IF:
BEFORE OPERATION CHECKS
1
Complete-
ness
Inventory items by
means of comparing
with the data specified
in this manual.
Items missing.
2
Sight Body
Inspect for missing
screws or connector
cap.
Screws or connec-
tor cap missing.
3
Objective
Lens Cap
Inspect for cuts, tears
and dirt. Clean as
required.
Cap torn or cut.
4
Output
Lens Cap
Inspect for dirt or O-
ring damage. Clean as
required.
Cap is not held up
on the lens hous-
ing.
Содержание PS-27
Страница 7: ...1 1 SECTION I introduction...
Страница 17: ...2 1 SECTION II operating instructions...
Страница 31: ...3 1 SECTION III OPERATIONAL DEFECTS...
Страница 37: ...4 1 SECTION IV maintenance instructions...
Страница 43: ...4 7 Figure 4 1 Focusing Assembly Threaded Ring Driving Ring Locking Ring M3x6 Screw M2 5x4 Screw...
Страница 50: ...A 3 4 3 5 Figure A 2 Accessories 1 From the Kit Figure A 3 Accessories 2 Optional 1 1 2 2 3 4 7 8 5 6...
Страница 54: ...INFO 2...
Страница 55: ...INFO 3...