4-9
Table 4-2. Troubleshooting Procedures
PROBLEM
PROBABLE CAUSE
CORRECTIVE ACTION
Cannot
achieve the
sharp image
of the object.
Objective and out-
put lenses dirty.
Clean thoroughly the
lenses surfaces.
Driving ring rotates
while threaded ring
does not move (see
Figure 3-1).
(1) Using hex wrench
tighten M3x6 screw
which secures driving
ring on threaded ring.
(2) Point the sight to
an object situ-ated at a
distance more than 100
m from you. Rotate focus
ring to achieve sharp
image of the object.
(3) Loosen the M3x6
screw and turn the
driving ring counter-
clockwise to obtain a gap
under driving ring lug
equal to the thickness
of your thumb. (The gap
is indicated with arrow,
Figure 3-1).
(4) Tighten the M3x6
screw.
Damaged optical
components.
Send the sight to the
service center.
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...