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How do I adjust the hook needle timing on my bernina 950?


I have a Bernina 950 sewing machine and I had a thread jam, and to remove the jam the hook came apart. Does it mean every time I have a thread jam I have to pay someone to fix the hook?
Why can I do this my self if someone will share pictures or knowledge?

Feb 28, 2015 | Bernina Sewing Machines

1 Answer

Industrial sewing machine has jammed, the wheel will not turn


Hello Christine, I think you do have a thread stuck between the rotary hook and the bobbin case carrier. Remove the bobbin case and bobbin. You will need to remove two small slotted head screws and remove the half circle locking ring that holds the bobbin case carrier in place. Try to wiggle the bobbin case carrier one way and than the other until it comes out of the rotary hook assembly. Don't pry too hard or you might damage the carrier and/or rotary hook assembly. Once removed, I think you will find the thread that is causing the lock up situation . Before reassembling, place a drop of oil on the bearing surfaces between the carrier and rotary hook assembly and also between the locking ring and the carrier.

Mar 07, 2014 | Sewing Machines

1 Answer

The bobbin case on my singer feaherweight is stuck


Sounds like thread or lint has got on the centre spindle of the hook. and jammed bobbin inside case. unclip race and remove hook and bobbin assembly. remove feed dogs and all tangled thread. machine should then be freed up

Feb 05, 2014 | Sewing Machines

1 Answer

Juki ddl 8300n


The part that holds the bobbin case down must have enough room for thread to move across the top of the bobbin case without getting jammed. Turn the hand wheel while you monitor the movement of the thread. If it gets jammed you will have to adjust the holder by loosening the bottom screw and move just a small amount. Also check your bobbin to make sure it is the right size. If it is too high it will jam the thread.

Mar 24, 2017 | Sewing Machines

1 Answer

The thread jams in the hook area. I've removed it according to the manual and it still jams.


change the needle
clean under the needle plate where the feed dogs are for lint
clean the bobbin are for lint or loose threads
check the thread tension-usually 3 or 4 is good
rethread the machine top thread & bobbin
some machines jam when the thread come off the thread take up lever--I have to watch my mechanical sewing machine for that problem

Nov 23, 2010 | Singer 1725

1 Answer

My needle hits metal and my bobbin thread jams


does the hook assembly rotate when you move the hand wheel. If no, then your machine's lower gears are shot.

Jun 13, 2009 | Sewing Machines

2 Answers

Thread is jamming and breaking and leaving knots on the back


Check the needle plate gap where the thread comes up from the Spool and the needle goes down.
This gets rough and damaged. Gently file out and buff.

Also check the hook assembly where the bobbin case goes, this also gets rough and will snag the thread. Rub up with FINE emery paper especially round the outside edge.

Mar 28, 2009 | Janome Memory Craft 3000

1 Answer

Sears Kenmore 1168280 (Old machine not used much)


Untangle any mess under and around the needleplate very gingerly trimming threads as you go if necessary....remove and clear.

Undo the needle clamp and remove the remains of the needle.

Open the door for the bobbin and bobbin case and undo the clips holding the hook in place......don't force anything, just ease any tangle loose slowly.

You may want to take a photo of how it goes back together if unfamiliar, or lay the bits out sensibly, so you can replace easily later.

Inside the bobbin/hook area is the most likely region for thread jamming the motion of everything, so make sure all is clear and clean, then.......

Without replacing the bobbin or hook, test the handwheel after cleaning before re-assembly.

You may also want to check the take-up crank for thread jams........the small arm in the top cover that moves up/down to "take-up" the top thread has a cam attached to the top shaft and often tangles thread around the shaft, open the L side cover to access.......remove thread by unwinding handwheel manually ....again be patient and careful not to break threads.

Best Wishes

bargainbox.com.au

Jun 08, 2008 | Necchi 4575 Mechanical Sewing Machine

2 Answers

No action


Remove the bobbin, bobbin case as well as the shuttle hook. There are black pins/holders that hold the shuttle hook. After you remove these 3 components, make sure there are no thread stuck in between the 2 hook pieces as well as the bobbin shaft. Most of them time, there are either fabric or thread stuck. If not, make sure the needle is not hitting the feed dog or the hook.

Feb 23, 2008 | Yamata FY920

1 Answer

Needle wont go up or down


If the Handwheel (big knob) is moving but the needle is not moving, you need to engage the clutch ........depending on the model

- push handwheel in to engage, pull out to disengage
or
- if there is a smaller wheel inside the handwheel, tighten to engage, loosen to release.

BUT if all is jammed........

Check for threads that are jamming the motion of the hook around where the bobbin case is

If your bobbin goes in from the top, remove the needleplate and bobbincase remove thread jams by gently rocking handwheel back and forth until released.

Clean around the hook race with a rag moistened with methylated spirit, surgical spirit or similar, then reassemble.

If front loading, open the door for bobbin case area, release 2 retaining clips holding the collar on (take note of the position/orientation for when you re-assemble....even take a digi photo to refer to !?!).....
......then just do jam removal & clean out in much the same way as for the top loader.

In all cases, don't force too much or be too brutal, gentle and patient works best, try to judge where the jam is caught and work with it slowly......you may need to cut jammed threads, just ensure all are removed before you re-assemble.

Feb 15, 2008 | Singer Featherweight 132Q Mechanical...

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