Service and maintenance 19
Replacing the prism
1. Remove the top head cover as described above.
2. See Figure 18. Lift the prism drivebelt off its pulleys. Do not stretch the drivebelt any more than
necessary.
3. See Figure 19. Push the end of the prism retaining clip down towards the prism until you can release it
from its locking slot. Lift the clip up and away from the prism.
4. Holding the prism by the edge, slide it out of the rotating prism unit.
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