I have a Singer portable, mfgd in 1941 (Model AG008912). After trying to sew over a very heavy seam, feed dogs started bumping against the chrome plate beneath the presser foot. (The plate the needle goes thru.)
Also, when trying to catch bobbin thread, the thread from the needle wraps around the bobbin housing (??-not the bobbin case, but the stationary housing the bobbin case snaps into.) When the plate is removed, the feed dog moves freely, but the thread still tangles, as described.
I tried replacing the needle, removing the feed dog (couldn't), switching the direction of the threaded bobbin, cleaning & oiling moving parts.
Great if you could tell me how to fix this! The little machine is a gem.
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Re: Feed Dogs, Thread Tangle
Hi Jeanette! You have a Singer Featherweight--the best sewing machine ever made! (Mine dates from 1950/51 and I wouldn't trade it for the world.) These beautiful, sturdy machines were designed to be easily repairable at home, but you'll need a copy of the Service Manual (get the Instruction manual too, if you don't have one.) Go to www.singer-featherweight.com and check out what they have available.
I had a similar problem (needle thread not catching the bobbin thread) and the problem was that I hadn't put the needle in correctly (flat side to the left). Also, I will occasionally get thread wrapped around the bobbin housing--sewing along just great and then everything comes to a screeching halt. I'm not sure why that happens, but I'm getting pretty good at taking the bobbin housing apart. The manual is pretty clear on how to do it. You can contact me direct at email@example.com for more information.
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The needle never moves forward/back on its own for most sewing machines. The needle bar goes up and down. The fabric moves due to the action of the feed dogs. First remove the fabric from under the presser foot. Check for tangled thread wrapped around the feed dogs or fabric/thread going down into the bobbin area in a tangle. Next check if the feed dogs are up. (When the feed dogs are down or covered (on some machines), the machine is in darning mode. The fabric will only move if you move it yourself.) With the fabric out of the way, rotate the hand wheel and check if the feed dogs are moving. Open up the bobbin compartment and clean out any lint, thread or other debris that may be tangling the mechanism. Take off the throat plate and check the feed dogs. A damaged throat plate can stop the feed dogs from moving properly. You may need to replace the throat plate.
For some machines, you may need to make sure that the unit is not in bobbin wind mode. This is usually obvious since the needle bar won't move either.
Confirm the feed dogs are raised. Make sure the feed dog teeth, area under the needle plate and the bobbin area are clean of any debris, thread, or buildup. Some machines also have a presser foot pressure adjustment that increases the pressure the presser foot applies to the feed dogs. The feed dogs could be worn (never run the sewing machine without fabric between the presser foot & feed dogs).
Remove the needle plate and clean the feed dogs with a brush...remove any lint and bits of thread.
A couple of drops of sewing machine oil might help to loosen the feed dogs up. (maybe let the oil seep in and then turn the handwheel towards yourself to help things along.
One other thought:
If your machine has feed dog lowering capability you might want to move that lever/switch back and forth a couple of times.
The feed dogs might not appear to raise or lower, but some machines will only re-engage raised feed dogs when the machine starts to stitch.
Also...verify that the presser foot tension isn't too strong/heavy...and temporarily try using a longer stitch length setting.
Check that the stitch length is set high enough that the feed dogs will actually advance the fabric. Setting the stitch length too low will cause the machine to basically sew in place.
Also, check that the feed dogs have not been "dropped" to allow darning or free motion quilting. Dropping the feed dogs lowers them so they will not rise above the needleplate and will not grip nor move the fabric.
If your machine is mechanical (not computerized), it may need a good cleaning and oiling. If the old oil has solidified, it could be preventing the feed dogs from moving like they should.
There has to be a problem in your threading or your needle. You may have the needle inserted backwards, flat side has to face rear or the needle is bent. Totally unthread your machine and make sure that there are no tangles and that it feeding the right way. Watch how they show your for threading and winding the bobbin, plus threading the bobbin. Good luck, but I truly think it is in your threading.
fabric moves forward when machine run due to movement of feed dogs,feed dog has a teeth, when your foot presser goes down attached to fabrics the pressure hold the fabric between pressure foot and feed dogs that why when machine run feed dogs pushed fabric when recieved stitch.try to check adjustment of feed dogs it maybe set at rest or neutral.reset it to upward towards needle.check also bobbins thread if accumulation was build up under feed dogs.regard and have a nice day.
Check your feed dogs. On the front, left at the bottom is a manaul switch. If you push it to the right it drops the feed dogs, for embroidery and when you push it left it lift the feed dogs. Just remember to turn the handwheel towards you after switching it to the left, until you hear a clicking sound and the feed dogs engage. Hope this solves your problem.