Individual head problems.

Replace the bur and check if the presser foot is fluffed or notched. The tip and presser foot require a distance of 0.3CM. Next, check if the needle is too close to the needle plate. If it is too close, it may cause the needle plate to fluff. It needs a thick strip of sand to make a 1cm strip, put it in, pull it up and down and polish it smoothly. Check for a fluffy surface or a gap. Polished with fine sand. For the number of rotations, try to use the middle needle position to turn the number of rotations.

The production time of the machine is long. It is possible to rotate the number of rods to the left and right. As long as there is no gap between the front and the back, there is nothing to do with the number of rotations. Try to turn the number of rotations to the right corner.

Press the needle bar to check if the gap of the slider is too large. Loosen the 2 screws on the eccentric shaft behind the big connecting rod and press the eccentric shaft outside the casing by hand (not too hard) to fix the screw and install a new slider.

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