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6-6 Replacing Wheel Components Technobeam
®
User Manual
2. Push the dichroic you wish to replace toward the center of the wheel to
free it from the two wheel tabs as shown in Figure 6-4.
Figure 6-4. Push the dichroic toward the large retaining tab to free it from the
wheel tabs.
3. Once the dichroic is free of the two wheel tabs, pull it out of the wheel.
If you intend to reuse this dichroic, put it in a safe place where it will
not get scratched.
4. Clean the dichroic, if necessary, with a mild glass cleaner (
containing
no ammonia)
and a soft, lint-free cotton cloth.
5. Carefully install the replacement dichroic, oriented so the coated side
is facing
toward the lamp
and the uncoated, glass side is facing toward
the rotating litho wheel.
To determine which side is coated, place the tip of a pen against each
side of the dichroic. Look at the dichroic and pen from a slight angle.
On the coated side, the tip of the pen appears to “touch” its reflection.
On the uncoated side, there appears to be a gap between the pen and
its reflection (see Figure Figure 6-5).
Figure 6-5. You can easily tell which side of a dichroic is coated by placing a
pen or other object near the surface; on the coated side, the reflection from
the object will appear to touch the object.
coated
uncoated