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Value of the capacitor across the main motor?

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My shuttle on my singer prelude gets some small scratches and I have to remove them and my sewing machine will see great until it happens again


Those scratches usually occur because the needle has deflected and hit it. This happens sometimes, however, sewing slower when going through heavy fabrics, across seams, never pulling on fabric, etc. will help prevent it from occurring. Also, NEVER sew across pins (have you ever had the needle break and the tip fly up into your face? Not a good idea if you value your eyesight!).

If the scratches are minor, they can sometimes be smoothed with very fine sandpaper or emery board. When it gets larger nicks and gouges, it may need to be replaced.

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Oct 14, 2016 | Singer Sewing Machines

1 Answer

Juki lk1903b machine is not working E7 is appers


HI
regarding JUKI LK-1903B Eror E7:
1-Machine lock error ( The main shaft of the sewing machine does not rotate due to some troubles ). please check if machine rotate smoothly by hand or not.
2-main motor problem ( AC servo motor problem ) motor part No.:401-38137.
3- check connection CN-15 / CN-17 from SDC board to main motor.
4 - problem in SDC servo board ( No output for main motor ). SDC servo board part No.:401-42267.
best regards
ASHRAF ABOZID
aabozid@hotmail.com
CAIRO - EGYPT

Apr 10, 2015 | Juki Sewing Machines

1 Answer

Why doesn't sewing machine stop after I release foot controller?


You could have a faulty capacitor near the motor, especially if it is an older machine. A short circuit in the capacitor to suppress interference can cause the motor to run by itself, The capacitor could be partially failing

Oct 06, 2014 | Brother Sewing Machines

1 Answer

Www.singer.co.com customer support


I have a vintage electric sewing machine but it needs a new capacitor in the motor could you let me know the values the one that was in was a 2 in one type 250v 0.05+2 x 0.025uf could I use two capacitors if so what should the values be? where would I be able to source components

Feb 21, 2013 | Sewing Machines

1 Answer

Why does my machine now only stitches backward, and no decorative stitches


You dont state what model of machine this is, however I have come across this problem mainly on Elna computerized machines and it has been exclusively due to failure of the driver chips on the processor board that control the stitch length stepper motor. You can confirm this by checking whether you can vary the stitch length as well as just the forward/reverse. Same applies to Bernina models, but I dont know about others. Either way, you need to have it checked by your tech.

Aug 20, 2012 | Sewing Machines

1 Answer

FOOT PEDAL REGULATOR STUCK "ON"


I dont know about the Singer, but I frequently get this on older Bernina models. The foot controller has a suppressor capacitor across the regulator and, on the Berninas, these capacitors fail with age, mainly because they were not specified with a high enough operating voltage for UK markets. Depending upon model, this component might be separately wired directly across the switch contacts or might be on a small circuit board. It is usually rated at 250V - I now routinely replace these with modern parts rated at 1000V and never have returns.

Jul 01, 2012 | Sewing Machines

2 Answers

Vintage elna condenser--how to replace?


Lots of these old machines had condensers to prevent radio and TV interference (static on the radio when using the sewing machine). Depending on which one it is, you might be able to cut it out and bypass it.

Jan 03, 2009 | Elna Quilter's Dream 6003Q

2 Answers

Foot control has no power


I've just fixed this problem by replacingthe main capacitor in the foot pedal. I have a Bernina 830. I needed a soldering iron, and I had to buy the right capacitor, but it fixed this exact problem. Btw, a few months ago this problem initially appeared (on my machine) as an issue where the speed was either zero, or full speed). After a white it wouldn't work at all.

Aug 31, 2008 | Kenmore Drop-In Bobbin 16231 Mechanical...

4 Answers

Power won't stop - Husqvarna/Viking 3600


your foot controller is damaged and should be replaced.

Jun 02, 2008 | Husqvarna Viking 1

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