Maintenance and Troubleshooting 4-3
Document 40275-0913
4.2 Performing Daily Maintenance
4.2.1 Steps: Inspecting and Cleaning All Lenses
Complete these steps to inspect and clean all lenses.
1. Turn off the main power switch.
2. Inspect the lenses for cracks and for moisture inside the lens
cases. Report any problems to your service department.
3. Clean each lens with a cotton swab, lens tissue, or a very
soft cloth.
4.2.2 Steps: Inspecting All Flap Sensors and Mountings
Complete these steps to inspect all flap sensors and mountings.
1. Turn off the main power switch.
2. Ensure that all parts are firmly attached to the mounting
brackets and that the locking knobs are tight.
3. Ensure that you do not disturb the position of the sensors or
the mounting brackets.
Caution: Do not use paper towels because they are abrasive
and can scratch the lens.
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