Question about Singer Sewing Machines
The tension adjustment for the thread from the spool, (not the bobbin) on a Singer Slant-o-matic Model 500A is way too tight.
I had a new spring put on but it still is too tight. I have taken it apart, but haven't been able to figure out how to ease the tension enough. A schematic of how it should look would be great.
Is the repair manual still available?
Loosen sewing thread tension by turning the machine's tension adjustment knob counter clockwise. All though the thread tension may already be too loose, back the sewing thread tension knob out. Be careful not to turn the knob accidentally so much that it falls out of the machine. Check the sewing machine thread from the spool to the sewing needle to make sure the sewing machine thread routes are correct through all of the machine's guides.
Now get a piece of scrap or test material about two feet in length. Place the material under the sewing needle the same way as in a normal sewing process.
In the second step below, look for, while sewing, if a slight noticeable pull to the left occurs as the material passes the sewing needle. When a slight noticeable pull to the left occurs, the machine tension is at proper adjustment. Do not tighten the machine's thread tension knob any further, to prevent any harm to the machine.
Now to begin the second step, turn the machine's tension adjustment knob, one quarter of a turn clockwise. This will tighten the sewing thread tension. Now sew approximately a dozen stitches through the material.
As the material passes the sewing needle, watch to see if the material has a slight noticeable pull to the left. No slight noticeable pull to the left suggests improper sewing thread tension. Turn the sewing machine tension adjustment knob one quarter of a turn clockwise again, to tighten the sewing thread tension, and then sew another dozen stitches.
Keep repeating the process of quarter turn increments clockwise with the sewing machine's tension adjustment knob. Then sewing a dozen stitches, until a slight noticeable pull to the left occurs as the material passes the sewing needle. Once the material does this, the sewing machine thread tension has reached proper adjustment.
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Posted on Feb 08, 2010
I have dismantled the thread adjuster. can someone help me to put them back in the correct order please.
Posted on Jul 21, 2013
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Posted on Jan 02, 2017
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