Even though I've set it at 0 it's still too tight, apparently and straight stitches don't look right, just a line on top of the seam. Zig-zags don't zig correctly, look more like a sick feather stitch.
i have started using my machine again (after several years) and am
doing patchwork.. all has been fine, and suddenly the bottom thread
(bobbin) is looping. i've adjusted the tension nob from 4 (where i had
it) to 5...back to 4.. 41/2....3 1/2....5 1/2... on and on and the
bottom thread still keeps looping.
i've read and re-read the manual...and the only suggestion it gives is to adjust the tension button.
it's not working...... what else can i try??
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The tension(s) may be too tight and could be threaded incorrectly. Start out with a brand new needle. Be sure to RAISE the presser foot when threading the upper thread. Consult the owner's manual to be sure it is threaded in the proper order. Test your stitch on a straight stitch and adjust it so both threads meet in the middle of the fabric. This setting works for straight stitch. However, usually the upper thread tension is loosened a bit for embroidery so the bottom thread will not show on the top of the fabric. Test it on some small embroidery patterns first until it's where you want it.
According to the manual, you should not need to adjust the bobbin tension (and I located other sites which stated the bobbin tension cannot be adjusted on this machine). Apparently, all the tension adjustment is accomplished through the upper thread::
"EN Thread Tension Upper thread tension Basic thread tension setting: "4". (1) To increase the tension, turn the dial to the next number up. To reduce the tension, turn the dial to the next number down. A. Normal thread tension for straight stitch sewing. B. Thread tension too loose for straight stitch sewing. Turn dial to higher number. C. Thread tension too tight for straight stitch sewing. Turn dial to lower number. D. Normal thread tension for zig zag and decorative sewing. Correct thread tension is when a small amount of the upper thread appears on the bottom side of fabric. Lower thread tension The bobbin tension has been set correctly at the factory, so you do not need to adjust it. Please note: - Proper tension setting is important for strong seams. - There is no single tension setting appropriate for all stitch functions, thread or fabric. - A balanced tension (identical stitches both top and bottom) is usually only desirable for straight stitch construction sewing. - 90% of all sewing will be between "3" and "5". - For zig zag and decorative sewing stitch functions, thread tension should generally be less than for straight stitch sewing. - For all decorative sewing you will always obtain a nicer stitch and less fabric puckering when the upper thread appears on the bottom side of your fabric. 1 A B C 22 D"
Doing further research, I found this statement on a machine review site:
"After reading reviews online from where I've bought my drop-in bobbin machines, I think many of the negative reviews are due to the bobbin thread coming up without laying across the bobbin. It can cause the stitches to look very sloppy and no amount of tension adjusting can fix the stitches."
There are several machine review sites wherein 4423 owners stated their disappointment in the 4423's performance. Some said the machine failed almost immediately and others said the machines developed problems when sewing heavy fabric.
You bobbin tension CAN be adjusted. First, thread your machine with different colors in the top and bobbin, set your top tension at its default, and run a line of straight, and then a line of zigzag stitches, and compare the results at the top and bottom. You will be adjusting your bobbin to your top tension. If the top tension looks like a straight line instead of stitching and the zigzag looks like "chicken tracks" instead of a zigzag, but the bottom looks like a zigzag, your bobbin tension is too loose.
Remove the bobbin case, and locate the straight-slot screw. There are generally two; one is a Phillips and one is straight--you want the straight one. Leave the other alone.
The rule is "lefty-loosy, righty-tighty." If your stitching displays the above symptoms, it needs to be tightened, so turn 1/4 turn to the right--no more--then test again. You will need patience, but don't turn more than that. It is easy to do, but if you don't do it systematically, you can make things worse, and very slight adjustments can alter the stitching significantly.
It sounds to me like your bobbin tension is off. Take the embroidery unit off and set the upper tension to "S". Run a line of straight stitches, then a line of zigzag stitches. It is helpful if the bobbin thread and the top thread are different colors for this. If the top thread is almost a straight line, your bobbin tension is too loose. If your bobbin tension is almost a straight line, your bobbin tension is too tight.
To adjust the bobbin tension, take the bobbin case out and locate two screws on the side. The one you want is the straight-slot screw on the left; leave the Phillips on the right alone. The rule is "lefty-loosy", "righty-tighty" turn in the correct direction only 1/4 turn and sew another line; you should see SOME improvement, but it may take repeated attempts to get it in balance. When it is, put the unit back on, and don't forget to change the upper tension to "E".
If your machine has been stored for 5 years, you should give it a good clean and oil according to the manual before you do anything else. Then put in a new needle and wind a fresh bobbin, checking that the bobbin has been wound smoothly as a badly wound bobbin can cause poor tension and stitching from the bottom thread.
You want the thread to go from the spool through a tension disc or eyelet to the bobbin and keep some gentle tension onto the thread spool using your scissors handle or similar so that the thread winds off it smoothly and the spool doesn't bounce around. Also give the thread a nudge with your finger tip as it winds onto the bobbin so it fills evenly, top, middle and bottom, not all in the middle.
Are you wanting a straight stitch to sew around the hemline? If so, your stitch length is right, but stitch width should be zero. You don't say what knob is set to 4, if its your top tension then that should be close, usually between 4 and 6 if dial goes from zero to 10.
Which thread is too tight? top or bottom. Firstly check the threading path to ensure that the top thread isn't catching on anything, is through the take up lever properly and coming from the thread spool without catching there. Some thread spools have a little knick in the top where you can catch the thread to store it, but you dont' want the thread to catch here when seaming, so turn it around the other way on the spool so it can't.
Try test stitching a medium zig zag stitch on scrap fabric, and you'll be able to see if the bottom thread is pulling in or the top one, then adjust the tension dial a little to lessen this.
Hope these pointers help, if you can't get a good neat stitch after trying these things, then consider taking it for a clean and service, the technician can get inside and clean the machine thoroughly and also check for any other issues that might be there.
Try adjusting the bobbin tension. My Pfaff (with a front load bobbin) has a tension adjustment on the bobbin housing. When you take the housing out, make sure there is no lint or stray thread caught anywhere in the bobbin casing, load the thread. Then dangle the bobbin housing from the thread end. A gentle pull (more like a ****) on the thread should allow the bobbin casing to slide down 1/2 inch or less. If the casing falls too far, increase the tension on the bobbin thread. Good luck.
you have your thread tension too tight that's why it is pulling the bottom stitch all the way through it looks good from the bottom but not good on top. Its pulled the stitch all the way through the material. I had my own upholstery shop 18 yrs and tension gets you every time.Just loosen the top tension.