Need to remove top cover to expose bobbin engage works

You would have to remove the top cover.

https://www.google.com/search?q=janome+jem+lite+639+remove+top+cover

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Here are the steps to thread a Euro-Pro 382 sewing machine:

1. Raise the presser foot lever to release the tension discs.
2. Place the thread spool on the spool pin and slide it to the right until it clicks into place.
3. Pull the thread end from the spool and insert it through the thread guide located at the top of the machine.
4. Pull the thread down through the tension discs, then wrap it around the bobbin winding tension disc located on the top left of the machine.
5. Insert the thread end through one of the holes on the bobbin and push the bobbin onto the bobbin winding spindle.
6. Push the bobbin winding spindle to the right to engage the winding mechanism. Hold the thread end and press the foot pedal to start winding the bobbin.
7. When the bobbin is full, cut the thread and push the bobbin winding spindle back to the left.
8. Remove the bobbin from the spindle and place it into the bobbin case.
9. Hold the thread end and turn the handwheel towards you to raise the needle to its highest position.
10. Pull the thread from the bobbin case and insert it through the thread guide located above the needle.
11. Thread the needle from front to back and pull the thread out about 6 inches.
12. Lower the presser foot lever to engage the tension discs and pull the thread towards the back of the machine.
13. Hold the thread end and turn the handwheel towards you to take up the bobbin thread.
14. Close the bobbin cover and you're ready to start sewing.

If the fly wheel is going around then the clutch isn't disengaged to wind the bobbin, you need to pull out the flywheel on your model to disengage the clutch for bobbin winding.


Take thread from thread spool across to bobbin winder thread guide, then back to bobbin and thread the tail through the hole on top of the bobbin. Place bobbin onto spindle on top of machine and then push it against the stop to engage the bobbin winding motor. HOld the thread tail up and start winding slowly until the bobbin core has been covered including the starting point. Stop and trim off the thread tail with scissors. COntinue winding bobbin and give the thread a nudge if needed to wind evening top middle and bottom of the bobbin. A good smooth wind is important. Also don't wind at full speed and keep an eye on the thread reel that the thread is coming off, you don't want it bouncing around as this will **** the thread and stretch then relax it affecting your bobbin wind.

Obviously if you know this and the bobbin winding mechanisim is just not working, then it will need a service/replacement by an Elna repair person.

First please double check that the flywheel clutch in engaged and not in bobbin winding mode, ie the inner knob is locked by holding outer flywheel and turning inner wheel away from you.

If you remove the needle plate and bobbin cover and turn the flywheel manually can you see the hook rotating at all?

If the needle is going up and down and the rotary hook is not rotating, then my guess will be that the pinon gear down in the free arm area has failed and will need to be replaced. You don't say what model but if it is a star series you should be able to remove the top plate on the free arm by undoing one screw and exposing this area to confirm this. If its a Stella or Lotus it won't be so easy to view. Either way, if its a Swiss made Elna parts are still available and there are serviceman around who can do this repair. If you are in the USA I would suggest you browse www.whitesewingcenter for parts/repair info on Swiss Elnas.

Or try www.sewingpartsonline.com and search by your model number to see the parts available.

The bobbinwinder spindle is on the top of the machine on the right.

Try to turn the spindle with your fingers. If it is turning easily, good. If not, see below.

Push the spindle to the right and it should turn when the handwheel turns.

If the spindle does not turn properly, remove the two screws that hold the top cover on. DO NOT REMOVE THE SCREW THAT IS ON THE SMALL BLOCK NEXT TO THE BOBBINWINDER SPINDLE.

The top cover will not remove because of the handle. While lifting up the cover, peer under to make sure that there is a small rubber tire on the under side of the bobbinwinder spindle.

If the tire is there, place a small drop of oil on the spindle and turn it until it frees up. Try not to get oil on the tire, it will make it slip. Wipe it off if it gets oily.

Replace the top and retry.

Neither the needle up/down or the LED for the stitch selector will work if the bobbin winding pin/holder is pushed to the right (meaning pushed into the winding position). If you accidentally left the winding pin/holder pushed over, you will lose the functions of both the LEAD and the needle up/down button! (Neither of these functions can work while in bobbin winding mode!)

The bobbin rewind unit needs to be inspected. In order to do that the covers have to be removed. It could be the wiring to the board may be disconnected or the rewind unit is just broken and needs to be replaced. You might want to take it to an authorized husqvarna viking dealer for service. You can locate a dealer near you by visiting the husqvarna viking website and clicking on the Dealer link on the left-hand side of the page - http://www.husqvarnaviking.com
Good luck.

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

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.