My machine is approx. 3 yrs. old. I sew with the tension on Auto and have had no problems. all of a sudden the bottom tension is too loose. I cannot seem to get it adjusted with increasing the tension. I took it to the local Singer store for the repair man to check it out. He cleaned the machine and bobbin case and his scrap of material showed the tension the same top and bottom. He said if I had further problems the whole tension unit needed to replaced with a cost of half what I paid for the machine. When I got the machine home it was doing the same thing. Any suggestions?
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Re: Bottom tension too loose.
Is it looping on the bottom of the fabric? If so this is a top tension issue, you need to check some things,
-make sure you thread the machine with the pressure foot up ( this allows the tension discs to open up so you can pull the fabric away from the machine with the foot up and allows the thread to get to bottom of the tension discs)
-make sure your tension settings are set to the medium setting. (Usually 4 or 5)
If this still does not help, then turn the top tension knob up (from 5 to 6,7,8,9....)
that still doesn't do it, your probably need the tensions reset. Let me know if you need more help.
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the bobbin tension is set by that small spring plate that you pull the thread under after you put the bobbin back in the carrier / holder
a very small turn of that screw makes a big difference ob the tension unlike the needle thread tension
mostly the problem ( you never bothered to mention the symptom ) is bird nesting under the fabric which is the needle thread tension not tight enough
The bottom stitch is affected by the TOP thread tension :) First go back and make sure your bobbin tension is correct since you adjusted it. It should drop slightly when held suspended by danging it by the thread. If it reels out to the floor it is too loose. If it doesn't drop at all it is too tight.
Now that you have that adjusted look at your top tension. If it is loopy on the bottom side of the stitch the TOP tension is too loose. Increase the top tension.
Now take some scrap material and set machine to a wide zig zag, medium length stitch and sew a bit. Compare the top and the bottom sides of the stitch. They should look identical. Remember the TOP side effects the bottom and the BOTTOM tension effects the top side. Adjust accordingly until they look identical with no loose threads or loops and no puckering (puckering means it's too tight).
I went to the singer website & typed the number in 6218 & it came up with nothing, is that the correct model number?
the tension problem try adjusting the top thread tension to 3-5, & see if that helps the loose tension
I would start by looking for a problem with the bobbin tension. Do you have the bobbin threaded through the case correctly? Is the the bobbin tension set to loose? Another thing that can cause it to spool up on the bottom is if it sews a bunch of stitches all in the same spot or real close, do you have the presser foot tension to loose?
hi! this particular problem is common when tension and stiches adjustment does not match and complied to fabrics your trying to sew,there a is hard way to find manual specialy to old ones. but if you want it may help you some i got here on manual sears 1803.if your control look similar to this in figure there are stitch control one for straight stitching and one
on special stitching.the small dial near needle is tension dial.You can set tension on # 3 to 5
stitch dial as in figureif you are
sewing a straight stiches set to # 8 to 12 trial are needed somtimes to acquired smooth sewing,Be sure no mechanical problem regarding in machine operation.try to sew a cotton fabric for trial then if sewing another fabrics sudden adjustment should be done.If your machine is equipted by auto tension just select on the fabrics.well small information can sometime helpfull ...nice sewing
Dear VeeVeeV, when I've had that problem it was due to incorrect threading of the top thread. Sometimes it "jumps" out of one of the thread guides, particularly the round one with the tension spring. The bottom thread looping & the machine not sewing is my first clue sometimes that it's done that. good luck, Georgia
you have your thread tension too tight that's why it is pulling the bottom stitch all the way through it looks good from the bottom but not good on top. Its pulled the stitch all the way through the material. I had my own upholstery shop 18 yrs and tension gets you every time.Just loosen the top tension.
Hi Quinny1420...If you are certain that it is a tension issue, first ensure that your upper threading is correctly inserted/passing through the upper tension discs, and the general upper tension starting point is between 3.5 and 5.5. Increase the upper tension to pull up loose stitching on the bottom. Last resort is to alter your bobbin tension. Clockwise to increase, and counter-clockwise to decrease. Turns should only be made in 1/5 increments between test sews.....Please update your post of your progress...good luck my friend