Chosen Solution
Having problems with the bottom thread; on the top a straight stitch, on the bottom a rather loose “S”-shape bobbin thread. Tried all kinds of upper- and bobbin-tension settings, needles, threads. Hook seems to be on time; no “pick-up” issues. The feed-dogs seem on time. Top-tensioner seems to work fine too. Have 2x metal bobbin holders, tried with different bobbins (metal & plastic), tried all kinds of tensions; same result. I just can’t figure out what causes the problem. It would be nice to get a repair manual to check the settings / timings against my machine. Has anybody a repair / service manual of the Bernina 1001? (the current Bernina 1008 model seems very identical)
According to the this website, the service manual for the 1020/1030 might be the same for the 1001/1008. However, this website says the 1020/1030 service manual is different from the 1000/1004/1005/1010/1015 service manual in direct contradiction to the previous website. Here is the service manual for the 1020/1030: https://data2.manualslib.com/pdf5/106/10…. Hopefully, this will be of some help, as I’ve been unable to find a free copy of the service manual for the 1001/1008.
How do I raise and lower the feed dog to my 1001 Bernina sewing machine?
