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I have a Nelco sam3b-3 machine. When the reverse button is pushed in, it will sew in reverse. However when released, the machine will not return to forward sewing. I can manually fix the problem inside the machine to make it return to forward sewing.
This site seems to have the manual for these machines: http://www.sewi anuals/Nelco.htm
I have a Nelco Ultra Buttonhole that is frozen. This machine belonged to my mother. She was a seamstress and used this machine for years. I don't know how or what happened to the machine but nothing will move. The motor runs fine when disengaged.
By Jerry from Belfair, WA
You need to take this machine to a qualified repair tech - don't take it apart any farther than you already have and be sure you get all the parts to the tech or he/she will have to charge you to replace the missing parts.
I do vintage machine repair here in Scotland for my Sewing 101 students. I can't see anything wrong with your mum's machine from the photo you've posted - because the problem is inside, under the head cover.
More than likely the silicone on one of the gears has dried and cracked but without getting the cover off and being able to see the machine up close and in person I can't be sure.
Please. Save this gracious elder stateswoman of sewing and get her to a trained repair tech who has the skills, tools, and access to parts needed to keep your machine sewing.
I want to change the belt on a Nelco A-509-3 sewing machine I picked up at a thrift store. After cleaning it up, I was able to wind a bobbin, beautifully by the way, I have the bobbin winder back in the proper position. I threaded the machine, but when I try to sew on it, it moves very slowly even with my foot all the way down on the pedal.
I'm not familiar with that make and model but after several years of doing vintage sewing machines (mainly Singers) I've learned if the user manual doesn't show the user how to do something it means the user shouldn't try to do it.
Take the machine to a qualified repair tech. Please.
A repair tech has the tools and knowledge to change that belt for you in under ten minutes.
We have the exact same model and problem. I (husband) fixed it by gently moving the nob with a plumber's wrench protecting it with a rubber thingy to open jars - not elegant but it works!