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Forum > Sewing Machines > Singer 15-91 ( Moderated by Sharon1952, EleanorSews)

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Singer 15-91
Why Does the Machine "Stick"?
Kippysan
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Kippysan
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Date: 11/30/13 7:46 PM

I'm having a bit of a problem with my 15-91. When I turn the handwheel towards me and the needle is at its very lowest point, it feels like the handwheel "sticks" and I have to pull hard towards myself to get the wheel to continue to turn.

I think something needs to be adjusted - but what? F

YI - the machine works fine once I get it moving.

Baffled,

Kippy

Warbler
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Warbler  Friend of PR
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Date: 11/30/13 8:06 PM

When was the last time you oiled the machine. That would be my first course of action. Also check the bobbin area to make sure there is no thread caught to bind the mechanism there.

------
Janome MC6600 Bernina 240 Juki MO735 Singer 201-2 Singer 221-1

Kippysan
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Kippysan
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Date: 11/30/13 8:15 PM

I recently oiled and lubed the machine. And I checked the bobbin area and there aren't any problems or restrictions. And I pulled out my manual and reviewed the threading and bobbin load/insert instructions.

The "sticking" problem has been with me for a while.

lelliebunny
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lelliebunny  Friend of PR
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Date: 11/30/13 8:53 PM

Maybe something is gunked up in the feed dog mechanics when they are at the bottom of their rotation. Also make extra sure that there is no lint in that area. Have you watched it to make sure that there is no contact between the needle and the stitch plate or hook area that have it ever so slightly out of time?

------
it doesn't matter what type of sewing you do. you are sewing, and sewing is good.

Kippysan
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Kippysan
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In reply to lelliebunny <<
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Date: 11/30/13 9:26 PM

The machine is very clean, no lint build up or anything "gunky".

About being out of time - I don't know. Again, the machine will sew, and it will sew fine. For a long, long time. There's absolutely no problem with stitch quality. Once its running, it runs. But when it stops, and I turn the handwheel forward to start - as you do with these old mechanical machines - there's a resistant sticking/pulling at the lowest needle point.

Would a machine that is suffering from the timing being off be able to stitch so great?

Al Johnson
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Al Johnson
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Date: 12/1/13 1:00 AM

I'm afraid my advice is going to be very generic, as this is not a problem I have seen myself, so I don't have a proven single answer. However, with the disclaimer out of the way, I'd say that it's probably not timing, since it stitches well. So, what would it be? Good question. To find out, here's what I'd do: Listen for a thump or clunk or other sound at the same position in the machine's rotation that you have the binding, when it's running. With power off, pull the machine through the tight spot with no needle. Still doing it? That should rule out a bent needle or serious timing problems. Watch all areas that move in the machine while you pull through the binding spot. See if you can see anything that looks like it hits anything else at that point. See if there is a crank or cam movement that is at one extreme of motion when this happens. If so, try to figure out why or if that part is causing the problem. Keep looking at all the moving parts while you go past the binding spot. I'll bet you find something sooner or later. And be very, very sure that EVERY metal on metal moving part is oiled.

If nothing can be found, I guess it's service time.
Good luck!

------
A sewing machine is just a welder for textiles.

beauturbo
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Date: 12/1/13 4:30 AM

I don't think you have momentum going for you quite the same way if needle all the way down, but also maybe there is a sewing pin dropped down into it someplace, and with machine vibration it could possibly maybe move around sometimes a bit and only get stuck into something sometimes? If when you try to turn the fly wheel that way and that happens a metal pin feels like a hard bind and obstruction and a thread bind would probably feel like a softer one. Maybe even thread wrapped around and broken off, in your thread take up could get tighter and looser back and forth and only sometimes get worse so look there too. Also when that happens next time, maybe release your fly wheel clutch like you want to wind a bobbin. That way, only the fly wheel and motor would be moving, so if it's still stuck then, at least you would have narrowed it down maybe.

rosehatten
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Date: 12/1/13 7:18 AM

Kippysan,
Maybe it needs some grease. That part doesn't use oil, it needs grease. I had one that had some thread in there, too. There's a grease tube that you get to on the front, just below the large screw you can see. At the bottom of that, there's a hand screw that you can take out to put in some grease.

I usually just take off the handwheel to add grease, which really doesn't have to be done very often--I think some of mine weren't greased in 40 years! It's pretty easy to take off the handwheel and see if you might need some grease or if something is caught in there.

Hope this helps. I love my 15-91s.
Rose

Kippysan
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Kippysan
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In reply to Al Johnson <<


Date: 12/1/13 11:51 AM

Thanks for your reply - I've already gone through exactly these steps and did not find anything out of the ordinary. And when I oil, I do so by following the original manual. There's LOTS of oiling places and I took care of every one of them.

Kippysan
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Kippysan
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In reply to rosehatten <<


Date: 12/1/13 11:58 AM

I did not remove the handwheel. I'll go check out that area and see if it needs grease.

Stay tuned......

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