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CHAPTER 5 Periodic Inspection
!
CAUTION
The harmonic drive service life may shorten if the grease recommended by
YAMAHA is not used.
Recommended grease
Use the following harmonic drive grease.
SK-2 (made by Harmonic Drive Systems Inc.)
!
CAUTION
Harmonic drive
•Do not apply strong shocks or impacts to these parts such as with a ham-
mer. Also, do not scratch, scar or dent these parts by dropping, etc. Such
actions will damage the harmonic drive.
• The specified performance cannot be maintained if any part of the harmonic
drive is used in a damaged state. This damage or wear may also lead to
trouble with the harmonic drive.
!
CAUTION
Since a positional shift occurs after replacing the harmonic drive, it is neces-
sary to make absolute reset, standard coordinate setting and point data setting
again.