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Idiomas disponibles
B. Electrical Maintenance.
WARNING: FOR YOUR OWN SAFETY, SWITCH OFF AND DISCONNECT THE MICROSCOPE
FROM ANY ELECTRICAL SOURCE BEFORE ATTEMPTING ANY MAINTENANCE PROCEDURE
TO AVOID THE RISK OF ELECTROCUTION.
1. Changing the bulb.
a. Lift up the stage using the focusing
knobs.
b. Unscrew the screws indicated. (Fig.
2)
c. Take out the top part of the
illuminator carefully without damege
the bulb, the condenser or the
illuminator.
d. With carefully take out of the bulb
and pull outwards to disconnect it
from the socket.
e. Do not touch the new bulb with bare hands.
Use a clean cloth to insert the bulb pins into
the socket.
f.
If the bulb is touched with bare hands, it must be cleaned, as the transmission of light
could be affected.
g. Put on again the top part of the illuminator and tight the screws.
C. Mechanical maintenance
1. Adjusting the tension of the coarse focus knob.
The collar to adjust coarse focus tension (Fig.3) is situated
between the coarse focus knob (19) and the arm (16).
Coarse focus tension is adjusted by the factory. The
optimum point of tension is that which permits the lightest
movement of the coarse focusing knob possible, without
the stage sinking from its own weight.
a. To adjust tension, first loosen the slotted set screw
in the collar hole with a 2mm hexagonal key.
b. To tighten the tension of the coarse focus knob,
turn the collar anti-clockwise; or to loosen it, turn clockwise.
c. Tighten the hexagonal screw.
2. Adjusting the rack stop.
40X and 100X(optional) objectives (4) use a retractable security system to avoid damage to the
specimen slide or to the front of the lens, should the two come into contact. Additionally, as a
security measure, the microscope includes a rack stop screw (17) that regulates the upward
movement of the stage. The rack stop screw comes pre-adjusted by the factory for standard slides
with a 0.17mm thick cover slip. However, for observing other types of slides or for using polarising
equipment (optional), adjustment may be necessary.
-8-
Fig. 2
Slotted
set screw
Tension
adjustment
collar
Fig. 3
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