typical GC0303D, Operation Instructions Manual

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17
18
19
1
2
3
4
2
1
8mm
1
1.2mm
2
3
19. Adjusting the upper thread guide
(Fig. 17)
The standard position of upper thread guide ①
is where the screw ② is in the center of the
adjustable range of upper thread guide.
To adjust the position, loosen the screw
② and
move the thread guide.
If stitch the heavy materials, move the thread
guide leftward. (To increase the thread take-up
tension)
If stitch the light materials, move the thread
guide rightward. (To decrease the thread
take-up tension)
Decrease Increase
20. Adjusting the presser foot height
(Fig. 18)
The standard height of presser foot ① is 8mm
when it is lifted by hand.
1.Loosen the screw
③ to lift the presser bar
2.Put a measurement gauge with 8mm height
under the presser foot;
3.Loosen the screw
④ and adjust the height of
presser foot;
4.Tighten the screw
④ .
21. Adjusting the feed dog height (Fig. 19)
1.Set the stitch length maximum, when the feed
dog ① is at its highest position above the needle
plate, the standard height is 1.2mm
2.Loosen the screw ② and turn the feed lifting
arm ③ to adjust the height of feed dog.