typical GC0303D - Adjusting Thread Tension; Adjusting Presser Foot and Walking Foot Pressure

-8-
14
15
2
5
1
3
4
16. Adjusting the thread tension (Fig.14)
1
2
Needle thread
Bobbin thread
●Stitch seam when needle thread tension is too weak
●increase the needle thread tension
●decrease the bobbin thread tension
●Stitch seam when needle thread tension is too strong
●decrease the needle thread tension
●increase the bobbin thread tension
Bobbin thread
Decrease
increase
Increase
decrease
Normal stitch
17. Adjusting the presser foot pressure
(Fig.15)
Decrease
Increase
Decrease
Increase
<Bobbin thread tension>
Adjust by turning the screw ① until the bobbin case
drops gently by its own weight while the thread end
coming out of the bobbin case is held.
<Needle thread tension>
After adjust the bobbin thread tension, adjust the
needle thread tension so that a good, even stitch
seam is obtained.
1.Lower the presser foot;
2.Adjust by turning the thread tension nut ②.
<Adjusting the presser foot pressure>
1.Loosen the lock nut ①;
2.Turn the adjusting screw ② to adjust the
pressure of presser foot, if it's not enough,
please turn the screw ⑤ to increase the
pressure.
＊The pressure should be as week as possible,
but strong enough so that the material doesn't
slip.
3. Tighten the nut ①.
<Adjusting the walking foot presser>
4. Loosen the nut ③;
5. Turn the screw ④ clockwise to increase the
pressure, on the contrary, turn the screw ④
counterclockwise to decrease the pressure;
6. Tighten the nut ③.