Question about Kenmore 744-08BH Mechanical Sewing Machine
Sometimes my machine doesn't let the thread from the needle pull up the thread from the bobbin. While sewing, I'll feel a little kick in the stitching, like it's hard for something to move. When this happens, the thread from the needle keeps winding itself around the pin in the middle of the casing. (?) The thread will look like a big spaghetti mess when I pull it out. I've cleaned & oiled the machine. Still have the issue.
SOURCE: bobbin tension
If the looping is happening on the underside, it is your top tension that is to blame, conversely looping on top is bobbin tension.........take a look HERE for detail on cleaning lint buildup.
Top tension should be set around the middle of the range, usually 4 - 6.
I would not advise playing with bobbin tensions, however, you can take the needle plate off to clean the hook race area (where bobbin case sits) ...this is good housekeeping, my wife does this every time she replaces the bobbin....just take it out and clean the bobbin case and the fixed metal hook race with a small brush to remove lint, if there appears to be fine dirty deposits, a cloth or cotton bud (Q tip) moistened (not soaked) with methylated spirit will do the trick.
Posted on Jan 27, 2008
SOURCE: no bobbin tension
If the thread is loose on the bottom of the fabric, it's actually the top thread is too loose. Think of 2 little elves playing tug of war in your machine, one on toip and one underneath. If you have loops on bottom, the top needs to pull harder (tighten top tension)
Posted on Mar 18, 2009
When I have run into similar problems with my older Singer, it's because there is a bit of thread caught somewhere in the bobbin mechanism that doesn't allow the shuttle to run freely. Take the bobbin assembly apart and use a bright light to see if you see any bits of thread in there.
Good luck and let me know if this works!
Posted on Jan 15, 2010
Sounds like a timing issue. Did you attempt to force fabric through too quickly? Sometimes this can alter the bobbin's tension, and alter the timing of the machine as a whole as well. Not a cheap fix, sadly(Local to me, for example, this will cost about 70 bucks to have fixed. Do NOT try to do this yourself, leave it to the professionals, there are more moving parts in a sewing machine than in a space shuttle.)
Posted on Apr 23, 2010
The winding sound is the rubber O-ring against the spinning pulley (back
of hand wheel) - do not let this continue, it will wear out the O-ring.
I had the same problem and I found the shaft bushing of the winder dry and needed lubed. Use oil or spray lithium grease and it should work fine. Spin the bobbin shaft by hand (not the hand wheel) to get it freed up after oiling.
You can oil from the top and should take off the side case to clean the excess oil from the O-ring. The shaft bushing is a tight fit and any dry oil will get sticky and prevent winding.
Posted on Nov 05, 2010
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