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Serger Jancome 7933 will not make stitches - Sewing Machines

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If the serger is threaded correctly and each thread is threaded in proper order and the tensions set at the midway point, it should make a chain. If not, then most likely it has been knocked out of time. Take it for service.

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Posted on Aug 26, 2016

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Is most likely threaded wrong check your manual for a proper threading

Posted on Aug 25, 2016

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Posted on Jan 02, 2017

Sewingirl

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SOURCE: Serger is not stitching

... not quite sure what you mean by "not stitching", here are a few things to check. If the problem is more specific, please leave me a note with more details.
Let's start right from the beginning (for 4-thread overlock/serge):
1. According to the serger manual, ensure that the proper needles are being used. That they are inserted all the way up into their positions and that the flat side of the needle is facing away from you. The left needle will appear to be shorter that the right, that is OK, all is going perfectly.
2. Use four good quality spool of serger thread (good quality sewing thread is fine also) and place them on the spool or cone holders. There should be "little bucket looking things" that fit onto the cone pins to make the cones sit nice and straight, use them. Rattling thread will cause grief.
3. The first thread to be loaded onto the serger is the Upper Looper ...it is the big needle looking thing that swings left to right and back again above the sewing surface. Follow all the threading guided according to your manual, the threading guides are generally coded in a colour specific for this looper. Once the eye of the Upper Looper is threaded, place the thread under the presser foot and to the left. Presser foot down.
4. Next is the Lower Looper, the big needle looking thing that swings left to right and back again under the sewing surface. It can be a bit tricky in some sergers as the thread need to pass to the left and then back to the right under the sewing surface. Your manual should have a good diagram if you can not follow the threading guides on the serger itself. Again the threading guides are generally colour coded with a different colour but specific for the Lower Looper. Once the looper is threaded, it is important that the thread is placed directly OVER the Upper Looper as it comes out of the eye of the Lower Looper. Place the thread now under the presser foot and to the left. Presser foot down.
5. Thread the right needle front to back and place the thread under the presser foot and to the left. Presser foot down.
6 Thread the left needle front to back and place the thread under the presser foot and to the left. Presser foot down.
7. Hold the four thread ends firmly in the left hand and give each thread individually a good pull down over the serger and behind, this will ensure that the threads are all engaged in the tension dials.
8. Set the tensions to the middle number, although this may vary with the brand and model of your serger. If you have the manual check for the correct settings specific to your unit.
9. Set differential to 'normal', or '0' (if your unit has one)
10. Set stitch length to about 2 1/2 to 3.
11. Make sure that the blade is in cutting position. We can trouble shoot blade position later if needed.
12. Make sure that you have the overlocking plate installed ... not the rolled hem plate (if your serger has two plates). Some sergers use the same plate for both functions.
13. Using two layers of medium weight fabric do a test stitch, what is the result? Is a chain forming? Are there stitches on the fabric? Are they looking the way they should?
Hopefully this has helped you, please let me know.
Cheers.

Posted on Sep 01, 2014

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I am trying to teach myself to sew.... what is a serge stitch an how do I set my brother sewing machine to do it?


A serger (overlocker) is not a sewing machine. If you look at the inside seams of a purchased t-shirt, you will usually find a serge stitch that was created using a serger (overlocker). A serger/overlocker usually uses 3 or 4 threads to create that stitch. It also trims the fabric at the same time it finishes the fabric edge. The serge stitch is a chain stitch that, if you pull a particular thread, the entire stitch will come undone.

Your sewing machine is not able to create that same stitch. Your sewing machine may have what is called an "overlock" stitch, but it will use only 2 threads (the top and bobbin) to create that stitch. You would have to consult your owner's manual to see if it can make an overlock stitch.


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For most machines, there is a mark at the midway point on each tension control that is the "optimal" tension for a 4-thread overlock. HOWEVER, every machine differs, so these settings may need to be tweaked.

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2 Answers

My Jancome 7933 will not make any stitches


Try installing a brand new needle.

Sergers are very finicky and if they are not threaded absolutely perfectly, they will show their attitude.

Remove all the thread from the machine. ALWAYS Raise the Presser Foot and rethread from the beginning. Make sure to thread each thread in the correct order (usually, upper looper, lower looper, then needles). If you don't get the threads in the proper order, it will most likely not work. Be sure that the thread paths are correct for all threads. Give each thread an extra little tug when going through the tension disk to make sure it is seated completely. Pull all the thread tails under and out the back side of the presser foot before beginning to stitch. Set the tension disks to the midway point between high & low number (this is the factory standard, although each machine may require some adjustment).

Test your machine and hopefully you will get a chain stitch.

Also, if a thread breaks or comes unthreaded, it is usually best to unthread totally and rethread from the beginning.

If that doesn't work, it is most likely a timing issue where the needles & loopers are not arriving at the correct time to connect. Probably requires service.

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How do I gather using a Janome 7933 serger?


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content.janome.com/index.cfm/Machines

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Singer Stylist 11 Serger problems with right need skipping stitches how can I solve the problem


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1. Is the needle bent or worn--replace
2. Is the needle inserted correctly into the needle holder--check needle
3. Is the Serger threaded correctly--rethread
4. Is the presser foot pressure right for the fabric--adjust

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26 Janome 7933 Serger manual


check with these sites ,, call them or email them about a manual
sewvacdoctor.com
a1sewingmachines.com
sewusa.com

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