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New Home SS-2015 sewing machine
Strange noise using "slow " speed setting
sookie
sookie
Member since 2/2/09
Posts: 2
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Date: 10/8/13 12:40 PM

I bought a New Home 2015 machine at a thrift shop and am very pleased with it. The only thing that concerns me is a grinding noise it makes when I switch it to low speed. (there is a switch on the side that toggles between low and high speed.). I have oiled and lubricated it, and it is very quiet when I don't set the speed to low. In addition, when I use the foot pedal and press lightly to go slow, there is no noise. I really never need a "slow" speed, but I am curious if any of you have such a switch, and is the machine noisy when you select the slow speed?

Also, do any of you know when this machine was made? I am guessing the 80's.

HappyGene
HappyGene  Friend of PR
Beginner
Missouri USA
Member since 6/30/09
Posts: 131
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In reply to sookie <<


Date: 10/9/13 11:07 AM

Hi Sookie,

I saw pics on the 'net and it looks like fun :)

It's motor looks like a single speed motor, so.......

The only similar control I've used was on some promotional machine from the late '60's and it's arrangement was to have an scr chopper circuit (like a light dimmer,) or an extra piece of that same circuit, that switched in. I'd expect the same, here.

Most likely, the problem is the capacitor that "times" the pulsing is failing due to "drying out." Inside most of these devices for the consumer market, there'll be a paste of some kind used for some reason that can slightly evaporate or harden.

If you've got a friend that's handy with soldering, he/she could freshen up that circuit with a new cap and resistor for a couple bucks and some pizza :)

This is not definitive, just what I'd expect. You can accomplish nearly the same thing by wiring in a light dimmer or using a Harbor Freight router speed control ($20), although this would dim the lighting on the machine, also.

My $0.02,
Gene

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If you're not ahead, you're behind!

sookie
sookie
Member since 2/2/09
Posts: 2
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Date: 10/9/13 9:40 PM

Thanks, Gene. I have a handy son who could probably do this. I really don't need the "slow" switch to work, but your explanation helped me understand that this was an isolated breakdown in my otherwise pristine thift store machine. My other machine is a singer 457 from the 70ís, so I feel like I am in high cotton with a machine that has snap on feet and a free arm. Thanks again!

HappyGene
HappyGene  Friend of PR
Beginner
Missouri USA
Member since 6/30/09
Posts: 131
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Date: 10/10/13 12:57 PM

You're welcome!

Gene

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If you're not ahead, you're behind!

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