- 49 -DDCCAAB BEFGH17-2 Optical Filter units removal and disassemblies.1. Remove 2 screws-A and remove the Optical filter unit 1.2. Remove screw-E, remove the plate and remove the Optical filter upward.3. Remove 2 screws-B and remove the Optical filter unit 2.4. Remove screw-F, remove the plate and remove the Optical filter upward.5. Remove 2 screws-C and remove the Optical filter unit 3.6. Remove screw-G, remove the plate and remove the Optical filter upward.7. Remove 2 screws-D and remove the Optical filter unit 4.8. Remove screw-H, remove the plate and remove the Optical filter upward.Note : Do not touch optical filters surface directly with hand.Each mirror uses different characteristic optical filter glasses. Mark the mirrors as they are removed from the opti-cal unit so that they may be reassembled in the location and direction from which they were removed.PlatePrinted markercimes this sidesurface.Optical Unit disassembliesPrinted markercimes this sidesurface.Printed markercimes this sidesurface. PlatePlatePlateHolderHolderHolderPrinted markercimes this sidesurface.HolderOptical filterOptical filterOptical filterOptical filterOptical filter unit 2Optical filter unit 1Optical filter unit 4Optical filter unit 3