Leica Microsystems DMI3000 B Mode D'emploi page 39

• Grasp the light ring to be installed with the
condenser tool (the lettering must face upward
and be legible) so that the tab of the light ring
is positioned to the center of the tool's cam and
the upper edge of the light ring is lying fl at in
the holder of the tool. The numbers should be
positioned toward the end of the tool. Press
the cheeks of the tool to grasp the light ring
(Fig. 39a).
• Two guide hooks are located on the underside
of the light rings. These must fi t into the two
grooves of the opening.
Insert the light ring (holding the condenser tool
angled slightly upward and at a 90° angle to
the housing) so that the mount fi ts under the
spring clip of the retainer (Fig. 3).
!
Caution:
Do not press the spring clip down under any
circumstances. This can destroy the clip or re-
sult in an unstable position of the light ring.
Fig. 36 Phase rings
Turn the light ring to ensure that it snaps into
position and release the tool.
Remove fi ngerprints or dust from the prism
with care.
• Use the left centering screw to roughly center
the light ring. The right centering screw must
not restrict the range of adjustment under any
circumstances.
• Note the number of the opening and the light
ring designation for entry into the Leica Appli-
cation Suite (LAS).
• Remove the adjusting key and close the con-
denser.
• Fine adjust with the Bertrand lens or telescope
after switching the unit on (Fig. 32).
Please continue reading if you also have to install
IC prisms. Otherwise, skip to the next section.
Fig. 37 Condenser prisms
6. Assembly
39