Question about Singer 7462 Mechanical Sewing Machine

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Thread jamming at bobbin

I have a model 758 self winding bobbin. i wind it then when i go to sew after one stitch the thread all catches and jams up on the underside of my material and the top looks good the back side every thing is a knotted up mess

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I have a Touch & Sew 620 that does the same thing. My solution is to ALWAYS, after winding the bobbin, remove the bobbin and then put it back in. There are usually a few threads caught inside the machine. When I take the bobbin out and then put it back in, it works fine.

Posted on Feb 27, 2009

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Check to be sure the thread is not catching on the bottom of the bobbin. If it is, replace the bobbin because it is sprung. If it is not catching there, then you need to check your tension to see that it is working properly. Normal 0 MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman";}. Pull the thread through the tension assemblyand test it to make sure the tension is working correctly.
(To do this test, adjust your tension setting to normal or medium or 5 orsomething in the middle. Raise the presser foot and pull the thread through thetension. It should pull easily!! Lower the presser foot and pull the thread. Itshould pull noticeably harder.) If it doesn't do this, you need to remove the thread or lint that is stuck between the tension discs. Open them with a small screwdriver and clean them out.
If this doesn't solve your problem, remove the bobbin case and check the hook for rough spots.. If you find some, buff with an emery stick until smooth.
sewman7

Posted on Oct 04, 2008

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Try winding it the opposite way you are doing it now in regards speed. If you are winding it on full speed, try winding the bobbin slower. If you are winding it slow, try faster. Also check that the thread is threading properly and is not catching somewhere, and also that the tension is correct. Finally, test with a thread that you have not experienced problems before.

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Just off the top of my so-called head, it sounds like something in the bobbin area is not seated correctly. However, I would recommend that you do a search on FB and Yahoo interest groups (also on PSW software); it's members are MOST helpful, and will be glad to work with you to resolve this problem.

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How to thread a bobbin


Which Singer machine do you have? I know how to wind and insert a full bobbin for some models.

Some wind the bobbin with it in the case. This is the case with my Touch & Sew. Inserting a full bobbin is simple. Open the slide plate and drop in the bobbin with the rings up. Make sure that to hold the bobbin thread so that it comes off at the left. Then close the slide plate and make sure that the end of the bobbin thread is coming through the notch. Hold onto the threads and turn the handwheel until the top and bottom thread come back up with a twist. To wind a bobbin for this machine, open the slide plate (some models have a little mark to line up the slide plate). Put in the empty bobbin and thread the top normally. Set the machine to straight stitch and push the bobbin wind button in. (This has a bulls-eye symbol on it.) Wrap the end of the top thread around the presser foot screw several times and hold onto the end. Step on the foot control to start winding. Keep winding until the bobbin is full. The thread wound onto the screw should break. Pull some extra thread and cut it to separate the top and bottom threads. Close the slide plate and set your desired stitch.

Other models are wound at the top of the machine. For some of with a drop-in bobbin, you need to bring the thread down to a catch and then off to the left to another catch. Some have a vertical bobbin. I don't remember if they all have a removable case. Those that do need the thread to come through a notch on the case that pulls the thread under a spring that keeps the bobbin tension. However you should check your manual. If you do not have a manual, check if one is available online. (http://www.singerco.com/accessories/instruction-manuals has many of the Singer manuals for sale or download.)

If you post a comment with the model of your machine, I'll give you a description of threading the bobbin or winding one.

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Jan 19, 2012 | Singer Sewing Machines

2 Answers

Have a brand new Singer 1507 that keeps jamming the bobbin thread. Have followed threading and winding bobbin instructions closely, but am still having problems with the bobbin thread jamming after 1-2...


I would try adjusting the tension on the machine - this sometimes causes the bobbin thread to jam while sewing. Re thread the entire machine including the top thread. Also it is recommended to use new thread as old thread can ball up after time. If no luck I would call the store you purchased the machine from.

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Elna bobbins have holes on the top, so wind the bobbin with the holes on the top too. The Lotus bobbin winder doesn't have a tension device, thread just goes through an eyelet. So, place your scissors curved handle on top of your thread spool as it unwinds the thread to ensure the thread then winds onto your bobbin evenly. Also watch the bobbin fill and give the thread a nudge with your finger tip to fill top and bottom as well as the middle part, you want it to wind evenly across the full width of the bobbin. When full, pop bobbin winder back to left, cut thread and pull off the bobbin.

Then place the bobbin into the bobbin holder with the holes on top, and pull the loose thread tail around anti clockwise into the tension device and gently "click" it into the tension spring with the tip of your finger while holding the bobbin still with your other index finger.

You will be able to tell if it is in tension if you then pull the thread and it doesn't come out of the tension spring. It should feel firm with resistance but still release thread to a gentle pull. tally_girl_6.jpg Now thread the top down to the needle and holding the end of the needle thread, hand wind the fly wheel towards you to lower the needle and pull up the bobbin thread. Close the bobbin cover.

Always hold the two thread tails at the back of the sewing area as you start stitching a seam until you have stitched at least 4 or 5 stitches to avoid thread jams.

Lotus is a lovely vintage machine - there is a user group on Yahoo Elna heirlooms where you can find lots of info and pictures shared by members.

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1 Answer

Threading the bobbin


Threading the bobbin - winding thread onto the bobbin.

Position the new empty bobbin onto the vertical bobbin rod next to the end wheel. Click the rod to the right to engage drive. Hold the outer end wheel with left hand, and rotate the inner wheel anticlockwise by about a 1/2 turn (it stops) this removes drive from the foot and needle mechanism.

From a spool of thread on the top, thread to a loop/post on the left on the top. Then back to the bobbin you want to wind. Thread through a hole from the inside-out. Hold the thread vertically above the bobbin while you depress the footswitch to start winding. Let go when it's turned a few times.

Move bobbin shaft left, and tighten end wheel after winding enough.

Fitting bobbin-

Move footplate towards you, insert bobbin in hole so that bobbin rotates anticlockwise when thread is pulled, then pull thread into the fine notch towards you. After this position thread away from you, and slide the footplate closed.

To start / load thread. Hold the end 3" of the thread through the needle behind the sewing foot. hand crank towards you to sew first stitch in air. This should retrieve the lower thread - which you can catch with a handy pair of scissors. Then pull both threads rearwards - ready to sew.

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