24
Mechanical adjustment
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 to 6.0
mm.
1. Remove the presser foot, the needle plate and the
bobbin holder. (see page 4-5)
* You may use a fabric to prevent damaging the needle
or the presser foot holder when removing the needle
plate.
2. Loosen the hexagonal bolt. Adjust the distance
between the lower part of thread drawing lever and
the hook race to 5.6 mm by moving the thread drawing
lever up or down.
3. Tighten the hexagonal bolt.
View A
Thread drawing lever
Hook race
View A
Thread drawing lever
5.5 – 6.0 mm
Hexagonal bolt
Hook race
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