Question about Sewing Machines
Bobbin jumps (followed manual that said the thread was to come off the spool on the left side). When I wind thread onto the bobbin without interference, no matter what I try, I noticed that 90% of the time it is NOT tightly wound. When I use my fingers to force it to wind tighter then the bobbin does not jump as much when I sew at it's lowest speed. But when it jumps, then no stiches are made.
ALSO the manual does NOT say how to adjust the bobbin, and it is WAY too loose. Please help, thanks in advance.
You ought to have a 3 mth warantee with this used machine, take it back to the dealer and have them fix this problem...in Australia, consumer law provides that the sale of goods requires that they are "fit for their intended purpose".....there is almost certainly a similar provision where you are........get it remedied soon, as a feature that has not worked since you purchased ....perhaps calling first to ensure you are able to meet with the service person to explain.
I would not recommend you open it yourself until the dealer has looked at it.
If they cannot fix it, ask for replacement or money back.
Posted on Mar 08, 2008
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
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.
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.
Drop-in Bobbin case will look similar to this image with the tension screw in the middle of the metalwork....
...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 !
....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
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 !?!?!)
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 consistant diameter with good thread, and less compensating to be done by your tension plates and less thread breaks !
If you want any more help with this, just post back here, or, drop a line through the "Contact Us" page at www.bargainbox.com.au
Posted on May 23, 2008
If the winder is working without thread as it should you can rule out an electronic and motor issue. At this point it won't hurt to remove the two screws on top and lift your top cover off. Take a close look at your winder and see if there is any thread or anything wound around or blocking it. There are one or two screws that will adjust the eveness of your bobbinwinding but I don't think this is part of the problem (just a slight turn for that until the bobbin winds evenly). There is a spring beneith the winder that may have popped loose, check that but if the little arm snaps back and forth thats ok. The spring should be in the second tooth of the gear notches.
I hope this helps.
Posted on Jul 31, 2008
SOURCE: Problem with winding thread onto
first you must make sure the winder shaft is turning by moving it to the right a little and see if you can turn it by hand.
If it is turning ok then there is a rubber ring on the other end of the winder shaft and it should come in contact with the drive which turnes it ,if it is worn it might need a new rubber.
Posted on Aug 19, 2008
SOURCE: Singer 132K6 industrial machine
Make sure that the thread is under the tension spring then thread it throgh the hole in the spoolcase,push the spoolcase retainer over to hold it in then turn the balance wheel towards you to pick up the thread through the hole in the needle plate, pull both threads back and sew away. I can supply a manual for this machine if you want one.
Posted on Sep 07, 2008
Checking to see if in fact that the bobbin shaft is turning. Run it without any bobbin on the bobbin shaft. Make sure that it is push over in the correct position and run it. I checked on mine and it does make the whirring sound and the the shaft does spin. Also check underneath the shaft to see if there is any thread wrapped around it. ( I had problems with that in the past). I hope this helps,
Posted on Sep 27, 2008
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