Question about Juki TL-98QE Mechanical Sewing Machine

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Juki TL98QE just hummmmmms when I push the foot pedal and needle doesn't move. Any help please?

Juki worked perfectly and now when I push the foot pedal a humming noise is created with no needle movement whatsoever. There is a slight odor coming from the area of the motor but not sure if that is normal or not.

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  • Richard Treat Dec 02, 2012

    I should add that the needle and stitching still works manually by rotating the hand wheel, so it is not "locked up".

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: juki stuck needle

check settings

Posted on Apr 28, 2008

bargainbox
  • 1388 Answers

SOURCE: tangle in bobbin area, stuck needle

Please TRY the solution BEFORE giving your considered rating.




Ensure that all is clean and free of lint and jams, this is the most likely cause....now for tension troubleshooting .......

This solution is for tension problems...if you cannot form any sort of stitch, the issue is quite different, so please let me know if you need a different problem solved.....

It is quite long, but just work through each section in order.
The "knotting up" can reveal a lot. If you have loose threads on one side or the other, the tension on the opposite side will be the culprit.

QUICK SUMMARY FIRST:
Ensure sharp new needle, 
Thread guides and Bobbin are Clean & Clear of lint
Set Top Tesion to 4 ....then....
Balance Bobbin to suit.

TOP THREAD TENSION:
If the looping threads are on the underside as you sew, it is the top tension. Top tension ought to be between 4 & 6 (this variation to allow for the different weights of fabric in your 
projects). 

IS YOUR NEEDLE SHARP ?
If you are using a needle that has seen quite a deal of work, or you suspect it may be blunt, change it for a new one !

TOP TENSION & GUIDES:
Make sure that when you thread the machine the presser foot is up so the thread goes between the discs and not to one side, top tension between 4 and 6, and that you have threaded through all the guides, including the last one, usually on the needle arm, just above the needle clamp.

It may be there is lint trapped between the discs, this will keep them slightly apart and reduce the actual tension, sometimes dramatically.

If tensions appear correct, and the thread is definitely in the channel between the discs, but still too loose and looping, try raising presser foot and remove your thread.

Now, with a 2" (50mm) wide strip piece of fabric 8 - 10" (20 - 25cm) moistened with methylated or denatured spirit, gently insert the fabric strip and clean between the discs with 
a see saw / to and fro action.

In the worst cases, gentle use of a needle to pick & remove the jam may be necessary, but be very gentle and make sure the tension is set at Zero and the presser foot is raised, (to 
disengage tension plates).... do not gouge or score the plates, they need a polished surface to work correctly.

BOBBIN TENSION:
Far less common, but if the loose threads are on the top, it is bobbin tension that is loose, it too may have lint in the spring and be giving a "false" tension. 

I would not recommend fiddling with bobbin tension without good reason, it may end up with missing small screws and spring pieces, however, you can take the needle plate off to clean 
the hook race area (where bobbin case sits) 

...this is just good housekeeping, my wife does this every time she replaces the bobbin....

just take it out and clean the bobbin case and the fixed metal hook race with a small brush to remove lint. If there is a significant amount of lint, use a vacuum and small brush to get the worst.

Then wipe all this area with a cloth or cotton bud (Q tip) moistened (not soaked) with methylated spirit, especially if there appears to be fine dirty deposits....oil and lint combine to conspire against you.

If it seems likely that you ......really ....do .....actually .....need .....to adjust the bobbin case, first check there is no lint trapped in the metal spring where the thread is tensioned. 

TOP LOADER:
Drop-in Bobbin case will look similar to this image with the tension screw in the middle of the metalwork....

4c76dc1.jpg ...the other screw at one end is holding it all together, so beware....it is not a tragedy to undo the whole lot and clean it, but very gingerly and lay the bits out in sequence and orientation, or you risk tearing your hair out !

FRONT LOADER:
....this is a bobbin case from a front loading machine and works in a very similar fashion to the top loader with drop in bobbin, again, if you dismantle it, take care so you can put it all 
back properly.
165ca5c.jpg FINISHING UP
GETTING THE BALANCE RIGHT:
When you are certain there's no trapped lint in top tension or bobbin, set the top tension to 4 and the bobbin tension to a point where you just begin to feel resistance.

Try using good quality thread of contrasting colours so you can more easily spot the changes.

Set your zigzag to one width less than maximum (eg. 5 of 6 ...or... 4 of 5 etc) and sew a sample for a few inches and check the result.... adjust the bobbin tension screw very little at 
a time, perhaps 1/16 of a turn.

You may find you are playing with this balance for some little while and if you are putting the needleplate on and off each time begin to think it cannot be correct to do this.....BUT....it is, 
and eventually, you do get a "feel" for the correct tension and then it happens quite quickly.....as a user you won't be doing it very often unless there is lint built up (or are there small hands at work around the house !?!?!)

OTHER ISSUES:
If you live near the ocean as we do, salt air can play havoc with metalwork inside and out, so to help minimise this, keep a few small packets of dessicant (silica gel) in your machine 
case....no case ? then make some sort of cover ! 

Same applies in any damp or humid environment, keep your machine dry and dust free.

Budget for a proper full service every couple of years (more often if heavily used) and if you don't use your machine for a few years, be aware that old oil will dry out and combining with 
dust and form a "clag" like glue (another reason for some sort of cover, even a teatowel !)

FINALLY, A WORD ON THREAD:
If it is worth spending the time, energy and money on making something that you would like to give lasting enjoyment......use quality thread, .......it may seem to cost a little more at the 
time, but the results, ease of use and added longevity will be worth the extra, and as a bonus, your tension troubles may be fewer and further between, because there is a more consistent diameter with good thread, and less compensating to be done by your tension plates and less thread breaks !

www.bargainbox.com.au

Posted on Nov 13, 2008

  • 2 Answers

SOURCE: Filling the bobbin with my Juki DDL-5550-6

It's actually designed that way on purpose so you can wind a bobbin while sewing. If you lift the presser foot, at least it'll make less noise in the process.

Posted on Apr 16, 2009

  • 14 Answers

SOURCE: Juki TL-98QE thread comes out of needle, won't pull up bobbin

It can be many things but first make sure the needle is in correctly, follow the manual to be sure, if it still does not pick up the bobbin thread you may want to bring it to a repairman to see if it is out of timing.

Posted on Jul 07, 2009

  • 2 Answers

SOURCE: Needle not catching thread

im no expert, just been sewing for many years, i use 2 different juki machines, i suggest looking at the needle, are we sure you have the rite size? 135/ 140? did the needle just get changed? it could be the correct one, but if its in backwards, there isn't a dimple to let the hook behind the thread, to catch it, feel free to call me, 239-895-4845, my name is devin, shop is Quality Auto Trim Inc., ill try to help you over the phone if necessary, good luck

Posted on Mar 12, 2010

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1 Answer

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Pam, Could be a bad/broken wire, may be repairable, you should take your pedal in to be tested, if diagnosed to be bad you may have to order a new replacement pedal. Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
How to Repair the Foot Control on Your Sewing Machine
http://www.sewingmachinesplus.com/foot-control-419451-003.php?gdftrk=gdfV210602_a_7c3285_a_7c15319_a_7cPID513
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HELP PLEASE!!


I am slightly familiar with older sewing machines but not modern machines. It is a long time since I've seen my machines.

If your presser foot has a wide slot it is clearly possible to use it for zig-zag sewing. If the machine is capable of zig-zag or swing needle sewing, it is sometimes possible to swing the needle and fix it to the left or right and fix it in that position.

I suggest you check in your machine instruction manual. Perhaps the presser foot you are using is unsuitable for your machine...

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yes! go to google or youtube for a manual. hold on ill send you a link ok!

and downlaod the pdf file ok! type in the name and model and go to their web site and look for a pdf file ok

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