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5º
12
Cleaning 5° and 10° polymer lenses
Remove dust with a blast of oil-free air. If this is not sufficient, follow the
instructions below. You will need a crosshead screwdriver.
Caution: Handle polymer lenses by their edges only. Never rub anything dry
on a polymer lens. Do not use glass and window cleaners on the lens.
Caution: Change lenses if they become visibly damaged or deformed to the
extent that their effectiveness is impaired, for example, by cracks or deep
scratches.
1.
Disconnect unit from power before cleaning lens.
2.
Remove the beam focus knob. Gently pull the lens tube out of the
barrel.
3.
Use a crosshead screwdriver to remove the brackets that hold the lens
in. Remove the lens from the lens tube.
4.
Dip lens in clean alcohol/water mixture (ten percent alcohol).
5.
Use a moistened, soft nylon bristle brush. Wash the smooth side of the
lens with gentle, straight strokes.
6.
Use the same moistened brush to clean the ridged side, following the
ridges, without hand pressure.
7.
Dip lens in clean alcohol/water mixture (ten percent alcohol).
8.
Use air gun to dry the smooth surface.
9.
Use air gun to dry the ridged surface. Use air stream to move liquid
away from you. Continue to remove as much liquid as possible.
10. Inspect the lens for dirt. Repeat the entire process as necessary.
11. Set the lens back in the lens tube with the ridged side facing the front of
the tube. Replace the brackets.
12. Slide the lens tube back into the barrel with colour frame retainer on top.
Replace beam focus knob and tighten bolt and spacer.
10º
CE Source Four
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