Leica DMI3000B, DMI6000B, DMI4000B manual ¥ Next, take the special condenser tool Fig, Phase rings

6. Assembly

¥Next, take the special condenser tool (Fig. 39.1).

¥If possible, install the light rings 0 to 3 in as- cending order. The numbering of the openings is located at the edge of the crown gear (4 large openings: 1-4; 3 small openings: 5-7).

¥Grasp the light ring to be installed with the condenser tool (the lettering must face up- ward and be legible) so that the tab of the light ring is positioned to the center of the toolÕs cam and the upper edge of the light ring is ly- ing flat 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 fit 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 fits 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 result in an unstable position of the light ring.

Turn the light ring to ensure that it snaps into position and release the tool.

Remove fingerprints 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 tel- escope after switching the unit on (Fig. 32).

Fig. 36 Phase rings Fig. 37 Condenser prisms

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