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Adjustment
[Standard]
When the inner rotary hook assy is pushed to the needle side (from front to rear), the
overlap between the spring plate of the inner rotary hook plate assy and the protrusion A
of the inner rotary hook assy in the front/back direction should be 2.5 to 2.8 mm.
[Adjustment]
1. Remove the needle plate assy.
2. Turn the inner rotary hook assy counterclockwise to contact the protrusion A of the
inner rotary hook assy to the spring plate, and then push the inner rotary hook assy to
the needle side (from front to rear).
3. Loosen the screw of the inner rotary hook plate assy.
4. Move the inner rotary hook plate assy to front/back, and adjust the overlap between the spring plate and the
protrusion A of the inner rotary hook assy.
5. Tighten the screw of the inner rotary hook plate assy to secure the inner rotary hook plate assy to the feed
holder.
Taptite, Pan P (S/P W) 3X12
Inner rotary hook assy
Inner rotary hook plate assy position
Inner rotary hook plate assy
2.5 - 2.8 mm
Feed holder
3 - 5
Screw
Protrusion A
Inner rotary
hook assy
Inner rotary hook
plate assy
Spring plate
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