Bobbin case Elna 62c

It might be here

https://www.google.com/search?q=Elna+Air+Electronic+SU+bobbin+replacement

..

It is likely the bobbin case isn't installed properly.

Hi. Try this site to look at a free online manual.

https://www.manualslib.com/products/Elna-Su-2614738.html

I hope this helps!

Elna SP ST SU sewing machine repair tips - YouTube

? 2:25
https://www.youtube.com/watch?v=TqrbimZyP1U
Oct 24, 2011 - Uploaded by Absolute Sewing
More Photos on replacing gears and some repair ti... ... I amhaving trouble with my Elna SU 62 skipping stitches when I sew on knits. ... Elna Lotus SP bobbin case repair - Removing a cotton jam from a Elna Sewing machine ...

Amazon.com: Bobbin Case 627569106 - Elna, Janome ...

Hey I can help you with this, its a long detailed explanation though. Have you removed the bobbin holden, ie,undone two small screws and lifted out the silver bobbin case, leaving a black round thing? This black bit is the lower ring guard, you have probably undone this to remove a thread caught in the edge of the bobbin case or umderneath. Elna manuals never detailed cleaning here but it is simple enough and needs doing from time to time, i have seen big wads of felted threads and lint under guard rings when pulling apart machines. This video shows how to line up the lower guard ring, the outer casing and the bobbin case.

Elna Lotus SP bobbin case repair Removing cotton jam from Elna Sewing...

I always turn the flywheel until the opening of the lower casing is facing forward, then look at the black lower guard ring and turn it until the cut out bit is facing the front. Now look a the bobbin case, it has a couple of silver Beaks and these need to fit in between the stoppers on the outer case. You will know if lined up right as it just fits straight in, wiggle a bit left or right until its lined up. Those two silver screws have to marry up with the two holes in the lower guard ring.
Once aligned , tighten up the two screws until firm. There is a dark coloured screw too, leave it alone.

Hope,is helps, once youve done this a couple of times, its easy.

Elna Tavaro SA swiss made machines all take a 720100 bobbin, looks like this



Flat on the bottom and 7 holes on top and slightly dished. Dont use anything else. You can buy them aftermarket from www.sewingpartsonline.com or any Elna dealer and I have seen them in my local Spotlight in Australia.

have you got the manual for this machine? You can download one from here: http://www.ps2netdrivers.net/manual/elna.2005/

It is a front loading bobbin and removabel bobbin case so I think the bobbin is a plastic "Class 15" - like this http://www.sewingpartsonline.com/bobbins-class-15-plastic-10-pack.aspx

Thread breaking could be caused several factors such as the thread actually being old and brittle, the needle or needle plate having burrs and catching the thread, incorrect threading, bobbin in bobbin case the wrong way, or top tension discs playing up/too tight or thread catching somewhere in the threading path.

I'd suggest that you trouble shoot this and refer to the manual for cleaning instructions. If you can access them clean between the tension discs (turn tension down to zero and "floss" between the by running the selvage edge of a piece of clean cotton scrap through the discs to remove any lint/dye buildup). Wind a fresh bobbin and rethread referring to the manual to ensure the bobbin is turning the right way. New needle and rethread top thread refering to threading diagram. Tension on 5 and test sew again.

If you are still having problems, then the machine may benefit from a service by your local Elna dealer, a good service and clean at least every 2 years is recommended.

Please describe the type of bobbin you have. Is it held inside of a removable metal casing? Or is it a dropin type? Is the sewing machine what is known as a "freearm" which you can put a sleeve or trouserleg over or is it a flatbed type? When I know this I can help you further.(I used to sell sewing machines).

There is one small metal piece 3/4 inch long and shaped like the letter "T" that fits under the right hand needle plate snap one screw. Attach to underneath square nut and can be seen sticking out from the top holding the bobbincase in place after the top plate is replaced and everything is back together. If this is not it, a picture would help as I have repair 100's of Elna 5000 to 9000's.
SewTech