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2. Replenishment of grease to the center knife section
(1) Apply Juki Grease A to both guide faces , knife bar
metal top , and knife bar metal bottom .
(2) Knife bar moves up and down by moving cylinder
joint up and down in the state that air is not
supplied. Apply grease to the metal so as to infiltrate
the inside.
A
3. Replenishment of grease to the needle bar section
Apply Juki Grease A to the thread take-up lever ,
needle bar upper section , needle bar lower section
, needle bar and needle bar .
4. Remove the rubber cap and apply new grease to the
inside of the hole after removing old grease adhered
to the inside of hole
A
. Then cover the hole with the
rubber cap.
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