TM 5-6675-325-14
Table 3-3. ORGANIZATIONAL TROUBLESHOOTING - Cont
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
7. FOCUS WHEEL IS DIFFICULT TO ADJUST - Cont
WARNING
Dry c l e a n i ng
to personnel
s o l v e n t , P-D-680, used to clean parts is potentially dangerous
and property.
Avoid repeated and prolonged skin contact. Wear
solvent impermeable gloves and eye/face protective equipment when using
solvent.
Do not use near open flame or excessive heat. Flashpoint of solvent
is 100°F to 138° F (38° C to 59° C).
,
(b) If binding is evident, clean lens sleeve threads with solvent
P-D-680 (Item 24, Appendix E).
Step 3.
Check installation of focus-wheel.
Smooth side of focus wheel must face upward. If it does not,
remove focus wheel and refit correctly.
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