Question about Simplicity Fashion Pro SW2145 Mechanical Sewing Machine

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How do i thread the bobbin on simplicity fashion pro sw 2145

Put it in the case clockwise, but not sure it's correct. also, which of the two thread holders on top do I use when sewing? which for filling the bobbin case. does this machine take plastic or metal bobbins. I have the manual, but not very helpful. can't get the tension to look right.

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Normally counter clock wise for bobbin, usually the first thread holder is used and the 2nd is used for double needles. here is a link for parts

Simplicity SW2145 Parts

Posted on Dec 08, 2014

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Posted on Jan 02, 2017

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Why does bobbin knot up? Was working fine until changed thread & boggin

try changing the needle--make sure the needle is the correct one for the thread and fabric being sewed
make sure the top thread has not come off the thread take up lever
try a different bobbin--just in case bobbin is damaged
make sure the bobbin is turned counter clock wise in the bobbin case

Mar 21, 2016 | Simplicity Sewing Machines

1 Answer

Does anybody having problem with the machine ? Because whenever i try to sew it keep jamming ? Is there anyway I can fix or whatever ?

Change everything! Rewind the bobbin with new thread and correctly...the thread should be evenly distributed on the bobbin and wound on slowly or it will be too tight. Use a new needle and be sure it is facing the correctly and not backwards ( needles have a front and back). Clean out the bobbin case with the little pipe cleaner brush. Rethread the machine and make sure it hits all the stations ( uptake lever, tension discs, etc...) and make sure the thread is unwinding in the correct direction( clockwise on some machines and counterclockwise on others) check the manual. Exhausting but usually works! Good luck!

Jul 09, 2015 | Simplicity Frontier SL390 Mechanical...

1 Answer

I can not find my book I am having problems on the tension on the bobben I can not fix it, I need help I hope you can help...

On the bobbin case there are two screws, one large and one small, when you put the bobbin in the case you should be able to pull the thread through with slight resistence, if it is too loose tighten the large screw a quarter of a turn clockwise and test sew and repeat if necessary, top tension about 4 or 5, make sure the bobbin turns anti clockwise in the bobbin case

Sep 12, 2011 | Simplicity Sewing Machines

2 Answers

My bobbin binds up quite frequently. I pull it out to find that thread has wound around the post under the actual bobbin in the bobbin case

Is the case in correctly, in the correct direction so that the thread is not unwinding?? Also make sure area is free of dust, threads & has been oiled recently.

Sep 26, 2010 | PfaFF Quilt & Craft Pro 7530

2 Answers

I have a Simplicity Fashion Plus

Possibly your thread tension is too loose--or your machine may need cleaning in the bobbin area.

Apr 11, 2009 | Simplicity Fashion Pro SW2145 Mechanical...

2 Answers


I'm trying to find a manual for a Simplicity SW2145. If you have any suggestions I greatly appreciate some help.

Thank You,
J. Eise

Oct 21, 2007 | Simplicity Fashion Pro SW2145 Mechanical...

1 Answer

How to properly thread the bobbin

From the Simplicity Sew Precious Model SWSP2 manual:
Inserting a new bobbin:
  1. Place wound bobbin into the bobbin case.
  2. Pull about 6 inches of thread out from the bobbin. NOTE: Be sure that the bobbin rotates COUNTER-CLOCKWISE when thread is pulled.
  3. Pass the thread from the bobbin, under the bobbin case spring, and toward the back of the machine.
  4. Slide bobbin cover back into position.

You can obtain a copy in pdf format for free at:

Sep 21, 2007 | Simplicity Sew Precious SWSP2 Mechanical...

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