Thread drawing lever
The standard height of the thread drawing lever from the surface of bobbin holder should be in the range of 5.5 – 6.0
mm.
Hook race
Thread drawing lever
Hexagonal socket bolt
Mechanical adjustment
Thread drawing lever
5.5 – 6.0 mm
Hook race
View A
1. Remove the presser foot, the needle plate and the
bobbin holder.
View A
2. Loosen the hexagonal socket bolt (use an Allen
key of 1.5 mm width across flats) . Adjust the distance
between the lower part of thread drawing lever and
the hook race to 5.75 mm by moving the thread
drawing lever up or down.
3. Tighten the hexagonal socket bolt.
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