Question about Sewing Machines
1. Make sure the needle is in facing the right direction and that it is a new needle.
2. Is the thread pulled from the bobbin?
3. Check the bobbin tension and start the top tension at four. Always thread the machine with the foot in the up position. This way you can feel for snags while threading. If there are any they must be eliminated.
4. Following the instructions that I have attached and you are likely to succeed.
HOW TO SET YOUR TENSION
Real Important: The objective is to even the top and bobbin tensions equally.
1. Remove bobbin case. Put bobbin in (rotating counterclockwise).
2. Put thread under the tension plate. Let the bobbin hang from finger and bob up and down lightly.
3. Adjust tension. The bobbin should extend one inch every time it is bobbed.
4. Put one drop of oil on race the bobbin case sets on top of. Replace the bobbin case and bobbin.
5. With the pressure foot up thread the top and give little tugs as you do this. There should be no snags or resistance. Make sure the thread goes in between the tension disc.
6. Now, put pressure foot down. Give a little tug to see if there is a resistance. Set the tension to four is a good start.
7. Try a piece of rag to sew. Set the tension on top to adjust for a perfect stitch.
Posted on May 01, 2015
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Posted on Jan 02, 2017
SOURCE: thread bunching
I discovered that when the thread is knotting up on the underside of the material that it is usually the threading on top and has nothing to do with the bobbin.
Posted on Oct 17, 2007
SOURCE: Thread tension?
I own this little gem of a machine. It definitely sews a perfect stitch. I'm assuming you own the green 3/4 size machine as denoted by your product number. The half size blue one pictured is incorrect.
Anyway, this machine sews a perfect stitch, due to the oscillating bobbin. Most sewing machines with rotary (drop in) bobbins don't have an easily accessible bobbin tension screw, which means your fabric is usually slightly puckered. Fiddling with only the upper tension helps very little. This frustrates me to no end for sewing long curtains, clothing side seams, etc. Wrong tension causes them to hang with puckers, making them look awful. With the Hello Kitty 3/4 size Janome, there is a screw on the bobbin case which allows you to adjust for every thread diameter perfectly. Always a perfect stitch, if you take the time to adjust this screw.
To adjust the bobbin for a perfect tension, load the bobbin into the bobbin case and thread it through the guide. Holding only the thread between two or three fingers, let the bobbin case dangle below. This will be slightly difficult, because the bobbin will want to fall out of the case. Don't worry, just don't move it around too much and it will stay in long enough for this test. If the metal bobbin case slowly drops lower, unwinding thread as it goes, the thread is too loose. Tighten the screw on the side of the bobbin case a little (about a quarter turn.)
If the bobbin case seems to be dangling firmly, give the thread a gentle tug, lifting up fairly quickly. If it doesn't release a couple of inches of thread, it's too tight, loosen the screw. You know the tension is perfect when a quick, light tug of the thread releases a couple of inches of thread.
Posted on Aug 16, 2008
completely unthread the machine....ensure the needle piston shaft is in the correct position and retread the upper. reinstall the bobbin and turn the machine by hand to engage the bobbin thread. Draw the bobbin thread through the stitch plate and with the needle thread, allow to trail off the back. attempt to sew a piece of scap material.
please let me know what happens at this point.
Posted on Feb 08, 2009
Check bobbin thread....Insert the bobbin thread into the bobbin case in a clockwise direction...pull the thread through the **** on side of bobbin case and slide up into small opening...make sure you pull through about 2 inches of thread to enable upper thread to loop. Good Luck
Posted on Jun 02, 2009
If the entire assembly has fallen out you will find if you remove the top left hand cover that there is a small screw in the casting where the tension assembly goes, replace the tension body to the correct position and tighten the little screw.
Posted on Jul 02, 2009
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