The first side of buttonholes on my Pfaff 7570 is mostly skipped stitches while the second side (when the machine is sewing in reverse) is almost always perfect.

Go to the Pfaff website and ask for help. :-)

Be sure to use a brand new needle. A dull or damaged needle will frequently skip stitches. If the problem continues, it could be out of time.

This is not uncommon. It's the stitch length balance. It is an adjustment that affects the balance between the forward and reverse
stitch. Some models have an setting that you can make to compensate. This is something that your local repair person should be able to take care of on it's own or as part of a routine service visit.

There are a couple things you can do that may help. 1. Float some lightweight paper under the fabric. Sew through the material and the paper. Then tear away the paper.

Secondly make sure you are using a long enough stitch.

If none of these things work.... take it in and have an example of the skipping. Have the machine's timing checked.

SKIPPED STITCHES
1.the needle is not inserted correctly
2.the needle is damaged
3.the wrong size needle is being used
4.the foot is not attached correctly

Instructions are on page 132 of the manual. Use either foot 5A or No.10 (which is more complicated). Select stitch No.40 then enter the length of the buttonhole you want to make using the number keys. If you want to define where the second bartack goes manually, press key 6 (under "Man") and you will have to press the Reverse key when the second row is where you want to finish the buttonhole. You will not be able to repeat this same size buttonhole automatically if you chose Manual bartack. By pressing OK after setting the length of the buttonhole you will be presented with a screen where you can adjust the width of the buttonhole (wider for heavy fabrics, narrower for finer fabrics) if you want.

Hi, did you buy the machine from a dealer - if so, I would take it back and ask them to show you how to do buttonholes again. It is also possible that, although the test buttonholes sewed out correctly, the automatic button sensor needs professional adjustment.

Before going back to the dealer, find the section in your manual that discusses buttonholes and read thru it very carefully. Pfaff machines are not intuitive, and the manual might describe a way to adjust the automatic buttonhole settings so they sew out correctly.

If you need more help, please repost and I'll try to help or put you in touch with a dealer who can help

Good luck, Ginny
Good luck, Ginny

Make sure you raised the feed dogs.

Unfortunately, this is most likely a computer board issue and there's just no way to predict if/when a board will go bad.

Your only option at this point is to take it to an authorized Pfaff dealer. If the person who serviced it was an authorized Pfaff tech, take it back to them. If not, do take it to a Pfaff dealer - non-Pfaff authorized techs are not trained on the machines.

Sorry I can't give you a simpler answer, but until this is corrected, your machine won't work properly.

Best,
Kim

Hi

Are you using a Pfaff 7570 (or other Pfaff machine with Sensor)? If so, definitely use the sliding buttonhole foot and the sensor guide (slides below the needle plate from the back of the machine. This will keep your buttonholes consistent.

The size is regulated by the Stitch/Pattern Length button and Width button. Select the size you think you'll need (in millimeters).

Test sew your buttonhole on the EXACT same combination of fabric/layers & stabilizer that your garment is. Adjust the length/width of buttonhole if needed. I would recommend a bit wider buttonhole due to the thickness/puffiness of the fleece.

Hope this helps,
Kim