Question about Bernina Activa 130
I purchased a used Bernina 230. Sometime it sews fine, but other times it will sew like there is no tension on the thread and create a "birdsnest" in the bobbin compartment. Sometimes it just randomly changes the stitch length to "gigantic" when no buttons have been pushed or settings changed. Sometimes it refuses to sew in reverse. this machine was recently serviced by a Bernina authorized rep/reseller. I didn't report these issues as I had not yet experienced them (he serviced it right after I got it). He did not find them when he was working with the machine. Can you advise?
When threading the top thread, ALWAYS RAISE the presser foot so the top thread will seat completely in the tension disk. Doing this improperly will create the birds nest. Thread nests can usually be addressed by the user unless there is a deeper problem within the machine.
Birds nest under the fabric big loops of thread top side looks good...
Sewing Machine Thread Bunching Up Here Why
Since you recently had a serviced, you should take it back to the technician. Sometimes they do not test everything or experience your problems. Make a list of problems and be sure to bring stitched samples of what is happening when you stitch.
Posted on Apr 27, 2017
You have two problems:
1) Sometime it sews fine, but other times it will sew like there is no tension on the thread and create a "birdsnest" in the bobbin compartment.
Cause : Threading the upper thread
- clean upper thread tensions discs
- do not forget "• raise the needle and presser foot" (see manual page 18)
2) Sometimes it just randomly changes ...
Please open new ticket. Give tu us more info. It seems like Short circuit on S-print, but your description is chaotic (not usable)
Posted on Apr 27, 2017
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Posted on Jan 02, 2017
SOURCE: The stitch quality is lousy.
check the tension spring in teh bobbin case
replace teh bobbin case
check for fluff or dirt between teh tension plates of teh tension unit - a piece of paper rubbed between them will help
take it to another dealer!
Posted on Apr 08, 2008
SOURCE: Bernina 1630 problem
Your feed dogs sound like they are getting stuck,chec whether they are on the down position,and also make sure that you have cleaned any lint that builds up in the bobbin area, if all fails it will have to go into the technician,
Posted on Sep 21, 2008
SOURCE: bobbin tension
Bobbin Tension Adjustment:
1. Do you have a genuine Bernina bobbin casing and not an Oriental copy? If yes, proceed as follows:
2. To set the bobbin tension, wind a genuine Bernina bobbin with Metrosene thread, type 1161 white thread as your "gaging thread". Load the bobbin case so that the bobbin turns CW. Attach the bobbin case to the hook body from the machine. Wind a couple of revolutions of thread around your index finger with the assembled bobbin case and hook body dangling about 6" to 12" below your finger. Gently and rapidly move your finger back and forth in a "sideways" motion about 1/4" to create a gentle vibration on the bobbin assembly. (Do not shake the bobbin assembly up and down). When the tension is right, the bobbin assembly should fall slowly and as you stop the movement, the assembly should stop.
The adjustment is found on the small screw, holding the flat tension spring against the bobbin case. If the tension is too tight, one must loosen the screw (past) the desired location and always make the adjustment by tightening to the correct position.
There are other checks for tension imbalance and associated problems on the bobbin case that I won't go into here. For further information I can help you later on.
Top Tension Adjustment:
1. The top tension rarely changes and can be depended on throughout the life of that machine providing that tension assembly is maintained occasionally. This can be done by blowing out the tension disks with the presser bar lever in the up position. One can also drag or pull a piece of sized percale or muslin through the disks with the presser bar lever in a down position. Perhaps both methods can be employed.
2. Load the top of the machine with Metrosene 1161 thread in a dissimilar color. I prefer to use a pastel color so as not to create an optical illusion of imbalanced tension.
3. Sew a satin stitch (.25 on the Nova 900) in sized cotton muslin with a thin piece of paper between two plys of fabric. The width should not exceed 4.5mm (standard width on the 900 Nova), however the newer machines have wider stitch widths so one must adjust as specified. The result will be a slight amount of top thread in symmetric lines on both the right and left sides of the satin stitch.
Typically, the top tension will not need adjusting. If the Nova 900 needs adjustment, please ask for additional help.
Posted on Nov 28, 2008
I had the same problem. I'm a novice sewer. I just bought my machine. It did the samething, tension didn't work, the thread kept knotting up underneath, and the fabric kept curling up in the back.
I adjusted the tension knobs to no avail. Then it kept bothering me that it was curling up. I then decided to set the dials back to where the factory had them and adjusted the presser foot just a hair counterclockwise and I haven't had anymore problems.
The other day the needle almost broke because the tension was tight on the thread. You have to make sure that the needle is at it's highest point to get it to release the fabric so you have a thread tail.
This is my first purchased machine. I had a New Home years ago that was given to me, however it blew away in the tornado of 1991 in Kansas and I never replaced it. I really do love this machine. I don't believe I will ever want another.
Posted on Nov 11, 2009
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