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Chapter 5 Maintenance and Storage A16.1065
5.1 Cleaning
Clean or disinfect the lenses and other components according to the following
instructions
.
Cleaning tools
⚫
Blower
⚫
Soft brush
⚫
Soft cotton cloth, lens cleaning tissue, gauze, etc.
⚫
Absolute alcohol (ethyl alcohol or methyl alcohol), medical alcohol
⚫
Petroleum benzene (only for wiping immersion oil)
CAUTION
⚫
Petroleum benzene and absolute alcohol used for cleaning are highly flammable.
Handle them with due care, and keep them away from fire or sparks and when
turning the power switch on and off.
⚫
When handing petroleum benzene or absolute alcohol, always follow the
instructions provided by the manufacturer.
⚫
Do not use organic solvents (such as alcohol, ether, and thinner) when cleaning
painted, plastic, or printed parts of this product. Using organic solvents might result
in discoloration or cause printed text to fade.
⚫
Use petroleum benzene only when wiping off immersion oil from objectives. Do not
use petroleum benzene to wipe the prism surface of the eyepiece tube or filters.
5.1.1 Cleaning the Lenses
Keep the lenses free of dust, fingerprints, and other dirt. Any dirt on lenses and filters
will degrade the image. If the lenses become dirty, clean them according to the
following procedure.
▲
Cleaning off minor dirt (such as dust)
(1)
Use a blower or similar tool to blow off dust.
(2)
If the above method does not work, dust off using a soft brush, or gently wipe off
with a gauze.
▲
Cleaning off heavy dirt (such as fingerprints or oil stains)
Wipe off dirt using a soft clean cotton cloth, lens cleaning tissue, or gauze moistened
with a small amount of absolute alcohol. (ethyl alcohol or methyl alcohol).
Tips for wiping
Do not wipe the lens surface using the same portion of a cloth or tissue more than once.
5.1.2 Cleaning Parts other than Lenses
▲
Cleaning off minor dirt (such as dust)
Wipe off using a silicone cloth.
▲
Cleaning off heavy dirt (such as fingerprints or oil stains)
Gently wipe off using a gauze moistened with a small amount of a diluted neutral
detergent solution.
