Question about Sewing Machines
The needle is stuck down inside the bobbin area & won't budge. I've removed the bobbin, tried the side hand wheel & nothing works.
It could be a part is damaged or broken or a timing problem,,it
would be a good idea to have the machine checked.
Posted on Dec 10, 2012
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Posted on Jan 02, 2017
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
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 consistent diameter with good thread, and less compensating to be done by your tension plates and less thread breaks !
Posted on Nov 13, 2008
Was all well and working before you did work on the bobbin area ?
Ensure the machine is unplugged & bobbin winder is set OFF as there is a clutch preventing the needle arm to operate when bobbin winding......remove the needle.
If you take the bobbin and hook out, can you manually rotate the handwheel forwards ?
If yes, this suggests they are not inserted quite right, or the timing is out of adjustment.
Can you rotate the handwheel backwards ? On some machines the clutch allows for reverse travel freely, but only around the 15 degrees you mention forward when the top cover is off.....there may be a broken or dislodged spring unit/armature inside top near the handwheel and bobbin winder assembly that is acting as though the top cover is open (a safety feature)....generally towards the rear of machine and acting like a log thrown into a gear.
This may help straight away, or only just start to unravell the cause....
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 Mar 16, 2008
The clutch has fallen off the shaft. Remove the very small screw in the clutch release screw to remove the clutch release. Place the clutch(round thing with ears on it) back on the shaft with the center ears pointing towards the outside. Put the clutch release screw back on. Tighten it to make sure it works
properly. Put the small screw back in the clutch release screw and test it again. If it will not tighten or release properly, remove the clutch ,rotate it180 degrees and try it again.This should solve your problem.
Posted on Feb 16, 2009
SOURCE: needle wont go up and down.
well,it seem that your upper camshaft was stuck due to several factor on mechanical linkages and maybe on gears.You have to isolate the checking since you have clean lower bobbins free from dirt and thread/fabrics chips.If there an opening on top of machine open it to check some mechanical destorsion or breakage.Check some broken gears inside.If nothing try to open also at the bottom of machine cover and there are also belt and gears connected to the motors and bobbins shuttle holder if so oil all shafting oil port,oil port bushing specially on bushing near hand wheel there is port for oil,
check also motor assembly of machine,you can disconnect belt from motor release the bolt holding motor adjust to lower tension belt and release the belt.Take some tools such as monkey pliers or small pipe wrench that can hold hand wheel just crack in order to move suddenly after oiling for several hours sometime bushing and shafting rushes emerged or if you have anti rush spray put in on.After cracking and you can move a little crack only by your hand several time lleft and right until all linkages free from rush.If you can move all parts and hand wheel rotate freely.Check also motor by rotating the small pulley conncted to motor if free to move.if ok put back and reassembly all parts disconnected.try to move again by hand if free to move after all asssembly.Run machine using foot pedal.
Posted on Mar 15, 2009
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