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3) Applying the exclusive grease
o The exclusive grease (23640204) is applied to the necessary components other than the lubricating com-
ponents. Never use any grease other than the exclusive one.
It is not necessary to additionally apply grease to the components when the sewing machine is used under
the normal condition.
When the machine is used under the specially severe condition, it is effective to periodically (once a year
or every other year) fill up the exclusive grease.
* : Apply the exclusive grease.
1
Needle bar components
*
*
*
*
*
*
*
(Caution) There are grease grooves on the inside
of needle bar upper metal (No. 19) and
needle bar lower metal (No. 18). Fill up
the exclusive grease to the groove por-
tion when drawing out the needle bar.
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