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I have janome mb-4 machine and the tension is off it was good until I change the needles which need to be change I have check and recheck the needle position over and over please help me.

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  • Sewing Machines Master
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Check that you have installed the needle facing the correct direction. There is a flat part and it must be installed correctly or your machine will malfunction.

You can also try a different needle--some are defective out of the package...

You might also try this:

Remove the top thread.
ALWAYS RAISE the presser foot and rethread from the beginning.
Verify the thread path is correct.
Set the upper tension to the midway point (this may need to be tweaked for your particular machine).

Posted on Apr 21, 2017


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Posted on Jan 02, 2017


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Related Questions:

1 Answer

How do I fix thread breaking and shredding on a Janome mb 4

If upper thread is actually shredding, change the needle. Verify the needle is compatible with the thread and fabric you are sewing. Thread that is too large for the needle eye will shred.

All About Needles

Feb 27, 2017 | Janome Sewing Machines

2 Answers

Janome mb4

are you using a good thread and the same thread on the top and in the bobbin, different threads will sometimes act up. I also can not sew one brand of thread on my machine, try Mettler or gutermann's you can get them at JoAnn's or Fabricland. hope it helps good luck K

Sep 23, 2017 | Janome MB4 Four Needle Embroidery Machine

1 Answer

Tension to loose and missing stitches

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

use a scrap piece of fabric to sew on as you adjust the tension
when the tension is to loose adjust one number higher till stitch
looks good

here's 2 links for a manual one is a hardcopy & the other is a
pdf downloadable--one is a different price from the other

Sep 08, 2012 | Janome MyLock 634D Mechanical Sewing...

2 Answers

My Janome Sewist 500 is making me crazy. The tension is loose on top, causing loops on the back, and the bobbin thread is just a straight line. I have changed the needle, changed the thread, rethreaded...

that sounds like the top tension dial is not working, causing looping on the underside so start by cleaning out the top tension device. To do this, unthread, turn tension to zero, then "Floss" between the discs with the selvage edge of a clean piece of waste fabric. If some black gunk comes out onto the fabric, then refloss on a fresh edge until its clean.

Then reset tension to 4 or 5 and thread up again until just before the needle. Now lower the pressure foot to engage the tension device and pull the top thread downwards - it should feel firm. If this is not happening, then I'd go the serviceman next. These things have a spring in and it may have broken.

I think the bobbin tension is probably okay so just reset that back to what it was, the straight line on the bottom is because the top thread is not being drawn back up by the take up lever on the upwards stroke due to insufficient tension on the top thread.

Hopefully cleaning the tensioner works though. Good luck.

Sep 25, 2011 | Janome Sewist 500 Sewing Machine

1 Answer

Needle keeps jamming, won't thread

Good day!

please try this simple tips:

Good day!

A sewing machine operator can often help themselves when their machine does not operate properly.
Here are some simple instructions, which if properly used can save time and mechanics service calls.
This could be trouble;================Do this;
1.Top tension to tight================loosen tension 1 turn
2.Machine improperly threaded=========check threading
3.Thread twisted on guide post========"
4.Thread twisted out of tension======="
5.Take up spring bent or broken=======Check action of spring
6.Thread jumped off pull off finger===Check threading
7.Needle bent or burred===============new needle
8.Bad cone of thread==================try another cone
1.Bobbin tensionspring to tight=======Loosen tension slightly
2.Bobbin threaded wrong===============check threading
3.Bobbin wound to tight or uneven=====try new bobbin
4.lint or thread on bobbin case=======clean inside case
5.Lint or thread inside hook==========clean inside hook
6.Bobbin case nicked bent or burred===check/change case
1.Needle bent or burred===============change
2.Needle set in crooked===============Check
3.Thread jumped off take up spring====check threading
4.Thread jumped off pull off finger===check threading
1.Forming loops on top of cloth=======Tighten bobbin tension
======================================or loosen top tension.
2.forming loops on bottom of cloth====Tighten top tension
3.Bobbin placed in case incorrectly===remove and replace
4.Bobbin thread slipped from under====check threading of
tension===============================bobbin case
5.Lint or thread in top tension=======clean between tension discs

Thank you and good luck.

Jun 07, 2011 | Janome D'cor Excel Pro 5124 Mechanical...

1 Answer

I am having trouble trying to overlock satin. the machine will overlock cotton fine but when I change to satin it seems to miss stitches

Have you changed the needle(s) recently in your overlocker? I would put in a new sharp size 70 for satin, turn down the stitch length a fraction, put the blade about middle of its range, thread tensions all to 5 and test serge. Then adjust the two looper tensions until you get the thread wrapping around the smoothly but not bunching up the satin within the stitch. Also put your differential to zero for a start and see how the stitching looks.

It is easy to forget to change the needles in the overlocker because it is usually a bit of a fiddle but they will go dull. And remember to just loosen off the needle screw a little, enough to remove the old and insert the new, don't turn it all the way out as they come out and there is often a little ballbearing up in the needle housing that can drop out and get lost with some models.

Also most sergers the two needles sit at different heights so make sure you've got them both fully up into the housing and sitting right, tweezers are a big help with this, I usually pop the needles into the housing, then balance the needle points on the screwdriver blade and lift it right up until it is all the way up, then hold firmly with the tweezer and do up the needle enough to hold it. Then repeat with the 2nd needle, then go back and recheck the first one until they are both spot on. Then manually turn through one stitching sequence to ensure that the needles are not touching the loopers, if you hear any touch, go back and recheck the needle placement again.

If you are just neatening single layer edges I would just use a 3 thread on satin and take out the left needle so it doesn't leave holes. If you are seaming two layers, then go to four thread (both needles) but you may need to use a bit of differential if the seam is puckering a bit.

If you find that changing the needle makes no difference at all, and stitches are still not forming correctly then it is possible that the timing is out a bit and the machine would need a service to sort this out. Hope this helps you out.

Apr 18, 2011 | Janome MyLock 644D

1 Answer

Janome jd 1822 when i'm doing zig zag, the thread is missing stitches and also my threads keep breaking

rethread the machine getting every thread guide
check the thread tension 3 or 4 is usually good
Change needle--make sure the flat side is toward the back of the machine & that it's insert as high as it will go--make sure the needle bar is raised to it's highest position
Clean under needle plate where feed dogs are for lint
Clean bobbin area for lint or loose threads
Rethread machine top thread make sure to get every thread guide
& bobbin that the bobbin is wound correctly & put into the bobbin case or shuttle correctly

here a tip about needle & thread compatability
Cut 6-8 inch piece of thread of the spool you are going to use for your project
Take the needle you are going to use for the project
& insert the thread thru the eye of the needle
& lift one end of the thread to a 45 degree angle
& if the needle is the right size for the thread it will slide down the thread
But if the needle hangs on the thread you need one size larger needle for the thread

Nov 24, 2010 | Janome Sewing Machines

1 Answer

The thread keeps breaking on my Janome sewing machine. i have changed the thread, changed the needle, and checked the tension. HELP

maybe something is catch in the tension guides, which is giving you a tigher tension. Try pulling a thread through the guides towrads the needle and looking for an obstruction

Sep 07, 2010 | Janome 1017 Mechanical Sewing Machine

1 Answer

Janome ENX24.needle tension will not adjust.

Set the tension to zero and floss it with a piece of fabric or twill tape.

Re-set the tension to 4, or where you would normally set it for this machne.

Thread the machine with the presser foot up, this opens the tension contol to allow the thread to enter.

If you are still having a problem, the machine needs to go in for service.

Mar 04, 2010 | Janome Sewing Machines

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