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6-2. Maintenance of optic components
Do not disassemble optic components. Please contact your local customer technical sevice to
handle repairs not covered by these instructions.
Before cleaning the lens surface, first remove dust using a special brush or pressurized air.
Suitable cleaning tools may be purchased from any camera shop.
1. Cleaning the eyepieces
a. Do
not remove the eyepieces (1) from the eyepiece tubes (3).
b. Clean the outer surfaces and breathe on them while doing so.
c. Then dry the lens using special paper. Dry the lens using circular motions from the center to
the outside edges. Do not wipe lenses that are already dry since lenses are very easily
scratched.
2. Cleaning the lens.
a. Do not remove the lens from the microscope.
b. Clean the surfaces only. To clean, use a soft cotton cloth moistened with xylol / xylene. Then
use the same cloth to dry the lens.
6-3. Maintenance of electrical components
1. Changing the lamp units
a. Unscrew the protective tube and the lamp shade of the lighting unit (13) by turning in a
counter-clockwise direction and removing it from the lamp frame.
b. Carefully use a cloth to pull the lamp from the holder and insert a new lamp.
c. Replace the lampshade by turning in a clockwise direction and screwing it into the lamp
holder.
d. The lamp must be cleaned if accidently touched with bare hands, otherwise the illuminative
power and life span of the lamp will be affected.
6-4. Maintenance of mechanical components
1. Adjusting the focus tension.
The tension is pre-adjusted by the manufacturer. At an optimal tension point, the focus
head moves easily without the attachment sliding downwards due to its own weight.
The focus tension ring (Fig. 1) is located between the focus knob (15) and the head
support (17).
a.
To increase tension, turn the tension ring by using the tool included (Fig. 3) and turning in
a clockwise direction (A); to reduce tension turn in a counter-clockwise direction (B).
b.
If the tool is not included, a suitable metal pin may be used.