How to adjust the stitch size of Bee brand old pedal sewing machine?

1. The needle pitch adjustment position of the old pedal sewing machine is in the position shown by the arrow in the figure below. When the needle distance needs to be adjusted, the pulsator can be loosened.

2. Then, adjust the up-and-down movement of the impeller according to the required needle distance, that is, after adjusting several centering scales, tighten and fix the impeller.

3. When the pulsator moves upward, the smaller the needle distance, that is, the larger the scale, the denser the needle distance. Usually used to lock pinholes or pockets with dense needle pitches, called small needle pitches.

4. When the pulsator moves downward, the greater the needle pitch, the smaller the scale, the looser the needle pitch and the greater the needle pitch.