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4.4.5) Adjusting bobbin winder amount
Use the initial position of a bobbin winder adjusting plate. If
bobbin winder amount is large, loosen a turnbuckle of
adjusting plate to turn it into A direction and if the amount is
small, turn it into B direction.
4.4.6) Adjusting location of bobbin winder drive
wheel
Adjust the location of bobbin winder drive wheel to have a
1mm distance from presser foot drive cam. Then, screw a
turnbuckle.
4.5) Transfer device
4.5.1) Adjusting height of presser foot
1) Loosen the turnbuckle of presser foot at the lowest point
of a needle bar.
2) Adjust presser foot height depending on thickness of
sewing materials, and tighten the turnbuckle.
20
Bobbin
A
B
Bobbin winder adjusting plate
Upper shaft
Presser foot drive cam
Turnbuckle
Bobbin winder
drive wheel
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