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Forum > Sewing Machines > Singer 15-90 how to fix ( Moderated by Sharon1952, EleanorSews)

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Singer 15-90 how to fix
tg33

tg33
IRELAND
Member since 11/11/08
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Skill: Beginner
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Date: 9/5/13 6:59 AM

Hi, I'm the proud owner of a Singer 15-90, at least that's what I think it is from looking up it's serial number. It was bought new by my Grandmother, and was manufactured in Scotland in January 1968, as far as I remember (I don't have the details in front of me). It is in a box (?), not a cabinet which is usual for here, and has been well looked after. I took it to pieces a few years ago and cleaned it up, and it cleaned up well. It is hand cranked, not electric.

I took it out last weekend and tried to sew with it, but it wouldn't form stitches properly (the needle went up and down and the fabric was moved on, but the thread didn't lock with the bobbin thread), and doesn't seem to have the power to push through denim. That is to say, it would form two stitches well, then skip six, then stitch one, then skip 10 etc. etc.

Can anyone recommend somewhere that walks me through a proper service of this machine? I have come across a few blogs detailing how to clean up the machine, but I would like one that addresses getting the maching to function as well as possible. I am looking for recommendations as there can be a lot of information out there, and it helps if someone can pass on details that they found good!

Thanks for your help.
-- Edited on 9/5/13 7:03 AM --

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SewPaula
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SewPaula
Missouri USA
Member since 2/18/04
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Date: 9/5/13 7:42 AM

I would check first to see if you have the needle in properly and threaded correctly. The flat side of the needle should go to the left and the needle is threaded from right to left. You should be able to get the user manual from the www.singerco.com website. Also, if you do a web search on Singer 15 service manual, you should be able to find a PDF document for doing the servicing. I don't have the link on this phone or I would post it.

Good luck!

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If I were a sewing machine, all I would have to do is lift up my foot and all my tension would be gone.

Sewing with my lovelies: Pfaff Performance 5.0, Pfaff Ambition 1.5 Kenmore 385.19365, Babylock Imagine and BLCS, 4 Brothers (PE150, PE770, 1034D, 2340V), and a chorus of vintage Singers

tg33

tg33
IRELAND
Member since 11/11/08
Posts: 1079
Skill: Beginner
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In reply to SewPaula

Date: 9/5/13 9:03 AM

Hi Paula, thanks for the reply! I have the needle in correctly (I double checked) but I threaded it from left to right? I can double check that, I have the original manual and a pdf of it. I must look up the service manual.

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tgm and Kittys
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tgm and  Kittys
Wisconsin USA
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In reply to tg33

Date: 9/5/13 10:14 AM

I would check online Sew Classic. She has lots of into on this type of sm.
Is the belt in good condition? You can buy a replacement belt if it has any worn spots or cracks. I keep the belt on mine checked often. They are not difficult to change. ............... also make sure using metal bobbins. Plastic ones do not work in this type of sm. ..... hope this helps a little...

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Remembering my most loved BFF (Best Furry Family, a very close friend, family)...The Baby my kins, my Abigail ..11/2/03 - 3/7/16

She's my Baby & I'll love her if I want to, love her if I want to.... you would love her too she's the Baby ... the kins ...sung ..just one of her songs..
I miss you an awful lot my Baby ...Ab-i-gail she would come running when I would say her name like that...

Lord please take care of my much loved kitty. +
Thank you Lord for loaning me the much loved Babykins. +

tg33

tg33
IRELAND
Member since 11/11/08
Posts: 1079
Skill: Beginner
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In reply to tgm and Kittys

Date: 9/5/13 10:24 AM

Quote: tgm and Kittys
I would check online Sew Classic. She has lots of into on this type of sm.

Is the belt in good condition? You can buy a replacement belt if it has any worn spots or cracks. I keep the belt on mine checked often. They are not difficult to change. ............... also make sure using metal bobbins. Plastic ones do not work in this type of sm. ..... hope this helps a little...

I don't have a belt on mine, it doesn't have a motor, just the metal bits connecting the hand crank to the wheel. I'm using the metal bobbins, the original ones.

Thanks for taking the time to reply!

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Reading from Europe

karen149
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karen149  Friend of PR
California USA
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Date: 9/5/13 10:36 AM

Make the sure thread is going the right direction in the bobbin case and that it is securely clicked into place in the bobbin housing.
tgm and Kittys
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tgm and  Kittys
Wisconsin USA
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In reply to tg33

Date: 9/5/13 11:54 AM

Oh a handcrank... that is nice. ...........by chance what type of thread? Coats & Clark XP ? Cotton Coats & Clark? or something else ? sometimes that makes a difference too. My older machines do not like Gutterman, I don't know why they just do not do well... my modern Janome is fine with other brands but not the older ones. Using Schmetz or ??? type of needle? ...

------
Remembering my most loved BFF (Best Furry Family, a very close friend, family)...The Baby my kins, my Abigail ..11/2/03 - 3/7/16

She's my Baby & I'll love her if I want to, love her if I want to.... you would love her too she's the Baby ... the kins ...sung ..just one of her songs..
I miss you an awful lot my Baby ...Ab-i-gail she would come running when I would say her name like that...

Lord please take care of my much loved kitty. +
Thank you Lord for loaning me the much loved Babykins. +

tg33

tg33
IRELAND
Member since 11/11/08
Posts: 1079
Skill: Beginner
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In reply to tgm and Kittys

Date: 9/5/13 11:57 AM

Quote: tgm and Kittys
Oh a handcrank... that is nice. ...........by chance what type of thread? Coats & Clark XP ? Cotton Coats & Clark? or something else ? sometimes that makes a difference too. My older machines do not like Gutterman, I don't know why they just do not do well... my modern Janome is fine with other brands but not the older ones. Using Schmetz or ??? type of needle? ...

It's gutterman thread, Coats and clark is hard to get here. I think it's a Schmertz needle, I can check that.

I'm sure the thread is going the right way in the bobbin case, but I can check that.

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Reading from Europe

lisalu
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lisalu
Member since 10/5/08
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Date: 9/5/13 11:58 AM

It's almost certainly not threaded properly. It is unlikely that it needs repair. These machines rarely go out of time although it may be possible if you disassembled it completely. BTW, if it is a hand crank, then it's not a 15-90 but probably a 15-88. I'm not positive, but I believe that is the case.
-- Edited on 9/5/13 12:01 PM --
PattiAnnJ
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PattiAnnJ
Ohio USA
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Posts: 9096
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In reply to tg33

Date: 9/5/13 12:02 PM

It could be the timing. Here is how to check and fix if necessary.

My first thought was also the position of the needle. The long groove on the front of the needle helps guide the top thread and needs to be facing the location of the bobbin (front and top, facing the front and left end of the machine, facing to the left).

Here is a video and the flat side of the needle faces to the right and is threaded from the left.


-- Edited on 9/5/13 8:35 PM --

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OLD CHINESE PROVERB: I HEAR & I FORGET; I SEE & I REMEMBER; I DO & I UNDERSTAND.

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