Singer 7422 "20u sewing machine" Questions

Needle arm won't move Sounds like it has seized perhaps from lack of oil. Singer 20U Industrial Sewing Machine Tutorial

...20U Industrial Sewing Machine Tutorial Singer 20U Industrial Sewing Machine Tutorial Bobbin winding on the Singer 20 33 or 20U this video shows threading the tension disk: How to Thread Singer ...

...sewing properly.....bubbin thread doesn't loop with the top thread User Manual:  http://www.parts.singerco.com/IPinstManuals/20U.pdfParts list:  ...

...20u sewing machine, but i couldnt use it because the bobbin case does not lock into the hook, and the bobbin is not very stay firm on the case, the thread is hard to pull once I put it in the case. ...

...20u, the bobbin always drops when i put it in , i cant sew at all.please let me know how to fix it. The thread is tide when i put it in the bobbin case, and when i put the bobbin case into the hook, ...

machine. This is what shows on eBay for Singer 20U foot. http://www.ebay.com/sch/i.html?_from=R40'R40&_sacat=0&_nkw=Singer+20U+foot&_sop=15 I don't find these for 20U43 so one size MAY fit

what size is a wsm 3 sewing needle is this a industrial sewing machine?is the name wsm?

...sewing machine is not feeding the material properley changing from large to small stiches sounds like the feed dogs need to be checked if the machine is not feeding the fabric thru also sounds like ...

can we put back machine oil back into the machine which we have drained it out as long as it's not got dirt or lint in it & it looks clean