on my Pfaff Select 3 the needle hits the outer casing of the bobbin - the thing where the bobbin case sits in and which turns with the needle movement. I DESPERATELY need help as I have Uni deadline on tuesday and need to do sewing for that. Thanks, regards Doro
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bobbin case should be stationary, bobbin itself is rotated as thread unwound, check hook timing. Simply turn hand wheel towards you and watch needle go down, when it reaches lowest point turn it slowly until needle rises 3/16" or so. Hook should be behind needle and slightly above eye.
First, make sure there is no debris and scraps of thread in the bobbin area. I'm sure you did that already. I assume you also tried it with another thread just to be sure. I would suspect that the timing went out of whack. The machines depend on a synchronization between the needle motion and the bobbin action underneath. I once had a Singer that slipped and I had to reset the timing. If it is the timing synch problem then it would happen consistently and not work sometimes and then not work other times. G
5. The needle thread & the bobbin thread are not set under the presser foot when starting to sew
6. the threads were not drawn to the rear after sewing
7. The thread is either to heavy or to fine for the needle
8. Try a different spool or cone of thread
Bobbin thread breaks
1. There is a right way & wrong way to insert the bobbin in the case --when you insert the bobbin in if it doesn't stitch correctly turn the bobbin over see if that helps or bobbin case is not inserted correctly
if there is a thread in the hook area try taking a pair of needle nose pliers to try & get the thread out, if that doesn't work then you might think about taking the machine to a sewing machine shop to have the machine checked since the needle will not go up & down & handwheel won't move
Check you have the right size bobbin case the gap where the needle enters should be 13mm approx at the widest point. A lot of other pfaff bobbin cases seem to fit and can be easily be mistaken. I have two pfaffs and have accidentally mixed the cases and had a similar problem.