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 ARMY
TM 9-6650-235-13&P
MARINE CORPS
TM-08552A-13&P
5-33.
EYEPIECE ASSEMBLY--MAINTENANCE INSTRUCTIONS (CONT).
DISASSEMBLY.
a.
Pull off optical instrument eye-shield (1).
NOTE
Care should be taken when disassembling
b.
Unscrew optical element cell (2), optical instrument
optical components of the M3 Borescope.
lens (3), ring spacer (4), optical instrument field lens
All lenses should be marked when
(5) and optical element retainer (6) from sleeve (7).
removed to facilitate installation. Refer to
CLEANING/REPAIR.
a.
Dust the lenses using the brush from the socket
d.
If sleeve is damaged, order eyepiece assembly
wrench case. Clean with lens paper and optical
11584707 for replacement.
lens cleaning compound. See TM 9-254.
e.
If not present when disassembled, order optical
b.
Inspect for cracks, breaks, worn or missing parts.
element retainer and install upon reassembly.
c.
Replace authorized parts. See appendix C.
REASSEMBLY.
NOTE
Refer to the optical system drawing (page 5-11) to ensure the lenses are positioned and installed
correctly.
5-122
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