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Re: Singer 237 - the bobbin thread is not catching by the...
You can try a new needle, (flat side facing away from you) and if that doesn't work, it is probably your timing. And that is not a do it yourself job because you need special tools and expertise.
I have the same problem. Isn't the flat side of the needle supposed to face right? Also what is the "timing"?I have the same problem. Isn't the flat side of the needle supposed to face right? Also what is the "timing"?
No, the flat side is supposed to face the rear of the machine or else it cannot get the bobbin thread. The timing is what makes everything in sync for the thread to form a stitch.No, the flat side is supposed to face the rear of the machine or else it cannot get the bobbin thread. The timing is what makes everything in sync for the thread to form a stitch.
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generally it is a needle thread tension problem so increase the tension right up
it could be a needle /hook timing issue if you had had broken needles lately
I am not sure about this particular machine but in most machines there will be a nob on the front loose low numbers like 0 1 -2 work well on number 3. If the nob is not on the front check and see if it is on the side.
Remove the upper thread completely. RAISE the presser foot and rethread from the beginning. Make sure it is threaded correctly according to the manual.
Set the upper tension to the midway point between high & low numbers. Retest on a scrap of fabric.
P.S.--once you get the upper tension correct, you may find you will need to readjust the bobbin tension.
Also make sure that your needle, thread, and fabric are compatible.
Remove all the thread. Raise the presser foot BEFORE threading the upper thread so it will seat properly in the tension disk. Confirm with the manual that the needle is inserted facing the correct way and verify that everything is threaded correctly. Somewhere I read to use only Singer needles in Singer machine--don't know if that's true, but...
There could be a knick or burr somewhere that is catching the thread. You can test it by lightly rubbing an old pair of pantyhose on areas (under the needle plate) and see if it catches anywhere. If the knick is not bad, you can try to smooth it with a fine emery board. Otherwise, could require a replacement part.
If you can, observe the stitching mechanism while you hand-rotate the handwheel and see if you can tell where the thread is hanging up. Hopefully you will be able to see where the machine is failing to operate.
Make sure that your needle is all the way up. With many needle clamps, loosening it enough to remove a needle is not enough to insert one -- you have to loosen it a little bit more. You can determine that by looking right above the clamp on the shaft -- there is what looks like a grey bar and the end of the needle should be right under it. If your needle is too low, it will not catch the thread.
A sewing machine operator can often help themselves when their machine does not operate properly. Here are some simple instructions, which if properly used can save time and mechanics service calls. TROUBLE;UPPER THREAD KEEPS BREAKING; This could be trouble;================Do this; 1.Top tension to tight================loosen tension 1 turn 2.Machine improperly threaded=========check threading 3.Thread twisted on guide post========" 4.Thread twisted out of tension=======" 5.Take up spring bent or broken=======Check action of spring 6.Thread jumped off pull off finger===Check threading 7.Needle bent or burred===============new needle 8.Bad cone of thread==================try another cone TROUBLE;LOWER THREAD KEEPS BREAKING; 1.Bobbin tensionspring to tight=======Loosen tension slightly 2.Bobbin threaded wrong===============check threading 3.Bobbin wound to tight or uneven=====try new bobbin 4.lint or thread on bobbin case=======clean inside case 5.Lint or thread inside hook==========clean inside hook 6.Bobbin case nicked bent or burred===check/change case TROUBLE;MACHINE STARTED SKIPPING STITCHES; 1.Needle bent or burred===============change 2.Needle set in crooked===============Check 3.Thread jumped off take up spring====check threading 4.Thread jumped off pull off finger===check threading TROUBLE STITCHES SHOWING LOOPS; 1.Forming loops on top of cloth=======Tighten bobbin tension ======================================or loosen top tension. 2.forming loops on bottom of cloth====Tighten top tension 3.Bobbin placed in case incorrectly===remove and replace 4.Bobbin thread slipped from under====check threading of tension===============================bobbin case 5.Lint or thread in top tension=======clean between tension discs
A sewing machine operator can often help themselves when their machine does not operate properly. Here are some simple instructions, which if properly used can save time and mechanics service calls. TROUBLE;UPPER THREAD KEEPS BREAKING; This could be trouble;================Do this; 1.Top tension to tight================loosen tension 1 turn 2.Machine improperly threaded=========check threading 3.Thread twisted on guide post========" 4.Thread twisted out of tension=======" 5.Take up spring bent or broken=======Check action of spring 6.Thread jumped off pull off finger===Check threading 7.Needle bent or burred===============new needle 8.Bad cone of thread==================try another cone TROUBLE;LOWER THREAD KEEPS BREAKING; 1.Bobbin tensionspring to tight=======Loosen tension slightly 2.Bobbin threaded wrong===============check threading 3.Bobbin wound to tight or uneven=====try new bobbin 4.lint or thread on bobbin case=======clean inside case 5.Lint or thread inside hook==========clean inside hook 6.Bobbin case nicked bent or burred===check/change case TROUBLE;MACHINE STARTED SKIPPING STITCHES; 1.Needle bent or burred===============change 2.Needle set in crooked===============Check 3.Thread jumped off take up spring====check threading 4.Thread jumped off pull off finger===check threading TROUBLE STITCHES SHOWING LOOPS; 1.Forming loops on top of cloth=======Tighten bobbin tension ======================================or loosen top tension. 2.forming loops on bottom of cloth====Tighten top tension 3.Bobbin placed in case incorrectly===remove and replace 4.Bobbin thread slipped from under====check threading of tension===============================bobbin case 5.Lint or thread in top tension=======clean between tension discs
Nice solid machine that one, top tension on 4 or 5, make sure the bobbin turns anti clockwise in the bobbin case, if the thread is pulling out too tight slacken the screw on the bobbin case ant clockwise about a quarter of a turn at a time and test, you should only just be able to pull the thread through with slight resistence
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