5.1 Cleaning of each part
Lens and filter
Do not leave stains or fingerprints on the lenses or filters. If they get dirty, blow away dust with a commercially available
blower and gently wipe the lens or filter with a piece of cleaning paper (or washed-out clean gauze).
Only when cleaning fingerprints and oil stains, slightly moisten a piece of cleaning paper with commercially available
absolute alcohol and wipe them off with it.
WARNING:
Since the absolute alcohol is highly flammable, it must be handled carefully. Be sure to keep it away from open flames or
potential sources of electrical sparks.
For example, the electrical equipment that is switched ON and OFF may cause the ignition of a fire.
Also, always use the absolute alcohol only in a well-ventilated room.
Portions other than lenses
Wipe the portions other than lenses with a dry soft cloth. If dirt/dust cannot be removed by dry-wiping, moisten a soft
cloth with diluted neutral detergent and wipe off dirt/dust with it.
NOTE:
Do not use organic solvents because they may deteriorate the coated surface or plastic parts.
To extend the life of the nosepiece
Using only a specific hole (partial segment) of the nosepiece may result in the grease inside the nosepiece to spread
unevenly and the motion of the nosepiece to deteriorate in rare cases.
To avoid this problem, you can use the OBREF command to rotate the nosepiece once to have the grease evenly applied.
The following measures are recommended:
l
Rotate the nosepiece about once a week.
l
Rotate once CW (clockwise) and once CCW (counterclockwise.)
For details, refer to the command reference manual.
5.
Maintenance and Storage
31
5. Maintenance and Storage
5.1 Cleaning of each part
