
SDC 2002
6. Maintenance
6-10
Operating Instructions - Rev. 1 / 6.2003
6.3.4. CLEAN THE HEAT ABSORBING FILTER
10. Press the locking spring of the heat absorbing filter to the left and pull it up and
out (later mounting position is defined).
11. Clean the heat absorbing filter with a cleaning cloth.
12. Insert condenser lens 1, infrared filter and heat absorbing filter, avoid finger
prints.
6.3.5. CLEAN THE LIGHT CONTROL (FAST APERTURE)
13. The iris of the light control can be manually turned into the light path. For this
purpose, put one finger into the upper left opening of the light control and ro-
tate the iris coupler (see Fig.609: ).
14. Check the iris of the light control for dust accumulation.
Remove dust with a cleaning cloth or a compressed air (Dustaway).
6.3.6. CLEAN THE FILTERS OF THE FILTER WHEEL
Light control
Filter wheel
Filter
Fastening bracket
Iris coupler
(Fast aperture)
Iris
Fig.609: Light control (fast aperture) and filter wheel
15. Turn the filter wheel by hard to give access to the filter to be cleaned.
16. Move the two fastening brackets of the filter to the side and remove the filter
(note the mounting position as the edges are different).
17. Clean the filter with a cleaning cloth.
18. Insert the filter, avoid finger prints.
The fastening brackets have to lock in with an audible click.
19. Repeat above procedure until all filters are clean.
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