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Question about PfaFF 1163 Sewing Machine

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During sewing, the upper part of the stitches on the fabric is fine, but on the bottom, the stitches goes on top of each other which forms a loop. How do I fix this?

Posted by Hai Phan on

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Irene Tulloch

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You have a tension problem, Probably upper tension too tight but if not then the lower tension is too loose

Posted on Mar 02, 2016

5 Related Answers


  • 10 Answers

SOURCE: Pfaff 7570 Sewing Slow

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.


Posted on May 04, 2008


  • 53 Answers


This is a top tension issue, you need to check two things,

-make sure you thread the machine with the pressure foot up ( this allows the tension discs to open up so you can pull the fabric away from the machine with the foot up and allows the thread to get to bottom of the tension discs)

-make sure your tension settings are set to the medium setting. (Usually 4 or 5)

If this still does not help, then turn the top tension knob up (from 5 to 6,7,8,9....)

-If that still doesn't do it, your probably need the tensions reset, and your local family sewing store will be able to assist you further.


Posted on Jun 06, 2010


Douglas Plant

  • 222 Answers

SOURCE: I am serging a 3 threat flat hem, thin, single

This sounds like a needle problem, put in a new needle and make sure it is the right system and size for your machine.

Posted on Jun 16, 2010


  • 89 Answers

SOURCE: when I stitch , the

Sounds like you did not get it in the tension unit, try this.
Thread the m

Posted on Apr 17, 2011

raj somaiya

  • 5370 Answers

SOURCE: I have sewn on my

Bobbin thread being too loose is due to two possible factors. The upper thread may be too loose allowing the bobbin thread to pull it under the fabric, or the upper thread may be too tight in which the bobbin thread will pull up to the top. Try adjusting the top tension to see if you can correct it. If it doesn't fix the problem, take out the bobbin and look for a screw on the bobbin case. If your bobbin case comes out from the underside of your machine, the screw is on the side. If yours is a drop in bobbin, it will usually be under the faceplate so you might have to take that off too to get to it. Turn the screw clockwise to tighten the bobbin, counterclockwise to loosen it. Only go a quarter of a turn at a time so you won't overshoot the mark.Then try by re-threading and sewing. The basic procedure for threading is as follows:---------- Note that Pfaff sewing machines thread from left to right, not right to left like other sewing machines. The upper tension discs should be raised at their highest position while threading, and the presser foot should be raised up until you thread the needle. Drop the presser foot right before you thread the needle. The prevents thread problems during use.-------------

  • Insert a full bobbin and retrieve the bobbin thread through the thread plate. Raise your sewing foot and needle to its highest position; hold the needle thread taught with your left hand, lower the needle into the thread plate using your right hand, and then raise the needle. As you raise the needle, the needle thread will catch the bobbin thread, and pull it up. There should be a loop of thread intertwined with the needle thread. Use tweezers, your finger, or a straight pin to retrieve the bobbin thread that is visible through the thread plate, and pull it through the plate.Place the fabric under the presser foot, and drop the presser foot. Choose the stitch you want to use from the top stitch display, right above the top thread feed. Press the '0-9" button located on the sewing machine's front panel, and a display screen will come up. Input the thread number, and press the 'OK' button located on the sewing machine's front panel.-----------this is procedure.

    If problem persists.Remove bobbin and clean lint from bobbin and re-tight the bobbin properly, then check.This should help.Thanks.Helpmech.

  • Posted on May 16, 2011

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    Related Questions:


    How do i adjust my consew 105 so the stitches do not loop on the bottom?

    If the thread is looping under the fabric, it is a top tension issue.

    Make sure you are using a new needle and that the needle/thread/fabric are compatible.

    Verify it is threaded correctly and that the thread is firmly seated in the tension disks.

    If the top thread is still looping under the fabric, then the upper tension is too loose.


    The tension on my machine is off.I don't know which thread to adjust.bobbin or top thread. on fabric top stitch seems ok,bottom stitch bunches up and is loose.How do I readjust the tensions?

    If the thread problem appears under the fabric, it is a top thread issue.

    If the thread problem appears on the top of the fabric, the bobbin thread is the issue.

    Perhaps the upper thread is not seated completely in the tension disk. Remove the upper thread from the machine, ALWAYS RAISE the presser foot, then rethread from the beginning. Make sure the thread path is correct. Test your stitch.

    If the thread is still looping under the fabric, the upper tension is too loose. Set the upper tension to the midway point. Test and adjust the tension until it is where you want it. Preferred tension is when both threads meet in the middle of the fabric.

    sewing machine tension Google Search


    Needle stitch fine. Bobbin stitch loops.

    First, try a brand new needle.

    Second, consider using a better quality thread. By all means, AVOID old or bargain bin threads. Coats & Clark used to be a standard, but thread quality has improved over the past few years, so you may want to check out other brands like Aurafil, Superior, Isacord, etc. Also, cotton wrapped polyester thread releases thread lint that contributes to build-up of gunk in the machine. Some sewists have noted that they experience more sewing issues when using C&C threads. However, some machines will do better with certain thread brands than others, so some experimentation may be beneficial.

    Third, check the stitch on your sample again. Generally, when thread loops appear on the underside of the fabric, it is the upper thread that is the problem. If loopy threads appear on the top of the fabric, it is the bobbin thread that is the issue. You can even use a different color in the top to help distinguish which thread is the problem.

    Fourth, when threading the upper thread, Always Raise the Presser Foot during the threading process so the tension disk is released and the thread can seat properly. "Bird nesting" occurs when the thread is not seated in the tension disk.
    Sewing Machine Thread Bunching Up Here Why

    Birds nest under the fabric big loops of thread top side looks good...

    Fifth, when the upper thread appears on the underside of the fabric, the upper thread tension is too loose. If the bobbin thread appears on the top of the fabric, the tension thread is too tight (or the bobbin thread is loose). Start out with the upper tension set at the midway point and tweak it from that point. The tension is ideal when both upper and bobbin threads meet in the middle of the fabric.

    Also, remember that tension is not static--a tension setting for chiffon will most likely not work on cotton or denim. Get comfortable adjusting the tension to suit the project you are sewing.


    When i run a straight stitch, the top of the fabric looks well sewn; the thread on the bottom of the fabric, however, bunches up-it looks nothing like the top stitch.

    Is it really the bobbin thread that is bunching under the fabric, or is it really the top thread that is creating loops and "bird nests" under the fabric???

    Rethread your upper thread. BEFORE you thread the upper thread, be sure to RAISE the presser foot. This releases the upper thread tension disks so the thread is firmly seated in the tension disk.

    If it continues to be a problem, then the upper tension needs to be tightened. Adjust slightly, then test. Repeat until the upper and lower threads meet in the middle of the fabric.


    My bottom thread can be pulled out after stitching

    Is the top thread creating loose stitches (ie, loops under the fabric)? If so, you need to tighten the upper tension. The upper and lower threads should meet in the middle of the fabric.


    I have cleaned the machine. I have tried both solitions in my Jaome machine and still loops are forming on the botom. i have even moved the little screw on the bobbin- tested the thread and changed the...

    If the loops are forming on the bottom it is the TOP thread tension you need to check. Make sure it isn't too loose. Also is the needle the right type and size for the fabric? Check the stitch out on plain cotton fabric if a tension adjustment doesn't fix it.

    The TOP thread effects the UNDERSIDE of the stitch and the BOBBIN thread effects the TOPSIDE of the stitch :)

    Juki HZL-E61: cannot get tension right on straight stitch

    Loops on the bottom of the fabric direct the problem to the top thread. Rethread again and make sure the thread goes through the tension discs. Lift the foot, because this is what opens the discs. When sewing and the foot is down, the discs should be closed and thus giving the upper thread the tension it needs.


    Sears Kenmore sewing machine model number 15358 tension issues

    #14 needle is way big for cotton napkin scrap. a #10 is good for most lightweight fabric. #14 is for sewing denim or levis, like that.

    the tension problems on almost all machines regardless of price usually fall on the upper tension. the lower bobbin tension is factory set and it's rare you should ever need to mess with it.

    if you have a drop in bobbin (top loading), tighten the adjustment screw all the way and then back it off 1/4 turn. if your machine uses a shuttle bobbin, tighten the adjustment screw all the way and then back it off in 1/4-turn increments until you can hold it in the air like a yo-yo and cause to bobbin case to fall slightly dipping your hand.

    A dull needle and stitch length will also mess up your stitch. The idea is to narrow the problem down to one thing and one thing only -- UPPER THREAD TENSION.

    So, if you have the right size needle for the job, with the right thread, and if your stitch length selection is correct (usually between 2 and 3 or 8-to-10 stitches per inch, the problem should be with your upper thread tension.

    An easy way to fix this then is to remember: Loops on top, upper tension drop. Loops below, upper tension grow. If you get loops on top of your work, lower (drop) your upper thread tension to a lower number. If you get loops on the bottom, raise the upper thread tension.

    Different stitches on the same machine will require different upper thread tension settings. Don't be afraid of it. Just remember the pneumonic: loops on top, tension drop, loops below, tension grow -- referring to upper thread tension.

    have fun :)

    Free motion quilting skipped stitches, breaking threads

    Might be that you need to lower the tensions quite a bit, you'll have to juggle with top and bottom tensions though, and experiment for just this operation with the Sensormatic.
    Not finding what you are looking for?


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