Camera body 503CW

5:10

Adjustment

Check the mirror 45o angle using the sighting tube which fits in the holder on the gauge. Tighten the locking screw. Shine a light source towards the oval cut-out in the upper part of the tube so that the white ring of the ocular is illuminated.

When the mirror is at 45o the pattern in the sighting tube will appear as shown.

Check that the inner white circle is symmetrical and does not lie outside the inner black field.

The mirror level is adjusted by bending the mirror support (13121) on the left hand wall and/or the mirror catch lever (13356-1).

Fig. 52.

After adjustment is completed remove the sighting tube.

To adjust the screen position there are four special screws (21606) in the screen frame. Use key V-4704 for the adjustment. Each rotation of the screw alters the height by 0.35 mm. A cross is engraved on the tool’s upper surface to help determine the amount of adjustment that has been carried out.

First check the flatness of the screen. Use the screen adapter V-4705 and the ruler with the indicator clock. The same measurement should be obtained at all four corners.

Fig. 53.

Then fit tool V-4151 into the camera’s front bayonet plate. The tool should be powered by 6 volt DC.

Position the microscope V-2236 on the screen adapter V-4705. Adjust (all four screws) the screen height with V-4704 until the green line is central between the two red lines.

Use the engraved cross on tool as reference. Fig. 54.

Remove the camera body from V-2229 and secure the screws (21606) with safety lacquer.

Fig. 52

21606

Fig. 53

Green line

Red lines

Fig. 54

Revision 1

January 2001