B. Electrical maintenance.
1. Changing the bulb.
•
Changing the transmitted illumination bulb.
a. Rest the stereomicroscope on its side being
extremely careful, especially with the eyepiece (1)
and the stage (11).
b. Unscrew the 4 screws indicated (Fig. 3) and open
the cap on the base.
c. With a cloth, carefully pull out the bulb disconnect it
from the socket.
d. Do not touch the new bulb with your hands. Use a clean cloth to insert the pins of the
bulb into the socket.
e. If the bulb is accidentally touched with bare hands, it must be cleaned, as this could
affect the transmission of light, and life span of the bulb.
f. Close the cover on the base and screw down firmly.
•
Changing incident illumination bulb.
a. Unscrew the illuminator protector tube (7), turning it anti-clockwise, and removing the
tube from that of the lenses.
b. With a cloth carefully pull out the bulb to disconnect it from the socket.
g. If the bulb is accidentally touched with bare hands, it must be cleaned, as this could
affect the transmission of light, and life span of the bulb.
c. Replace illuminator lens tube, turning in clockwise, and screwing in the protector tube.
3. Changing the fuse.
.
a. With a flat screwdriver, lightly press on the slot of the fuse holder cover (Fig. 1) and turn
1/4 in the direction of the arrow marked.
b. Release pressure and completely remove the loosened cover.
c. Remove the fuse from the removed cover, and insert the new one, ensure that it is 0.5
Amps.
d. Insert the cover.
e. Repeat step (a.) but turning 1/4 in the opposite direction to the arrow. The cover must be
firmly closed.
-8-
Fig. 3
