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16.
INNER ROTARY HOOK BRACKET POSITION
STANDARD
When the inner rotary hook bracket and the rotary hook meet, the spring of the inner rotary hook bracket and the
inner rotary hook should overlap each other by 1.7 ± 0.1 mm.
ADJUSTMENT
1.
Loosen the screw securing the inner rotary hook bracket.
2.
Adjust the position of the inner rotary hook bracket by moving it vertically and/or horizontally.
NOTE :Surface A of the inner rotary hook bracket should be perpendicular to the feeding direction.
3.
Tighten the screw of the inner rotary hook bracket.
Adjustment Point
1.
If the inner rotary hook bracket position is moved by a large amount, be sure to check and adjust the
bobbin thread detector with test mode "10".
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