I have 2 Singer 29k53 machines. One of them runs a bit "bumpy" and may have wear and it is hard to get a consistent stitch with it.
The second machine runs really smoothly and does not appear loose anywhere. The stitching is really nice and neat most of the time.
However, unpredictably it sometimes misses an odd stitch. This is accompanied by a brief knocking from the shuttle area.
I have tried various tension settings, but the inconsistency continues.
Could anyone throw any light as to why this is happening?
Also, is there any known link to a user manual for this particular model? (I have one relating to 29k58)
Any help much appreciated