How do you remove the back cover from a Euro Pro 8660?

Some machines (computerized models) are made so that the outer covers cannot be removed. Are you able to remove the side cover over the needle bar? You may be able to find the problem there. Otherwise, you may need to have service performed. The thread could be hanging up in the tension guides--most likely pieces of thread.

You might try cleaning the tension guides. RAISE the presser foot, loosen the upper tension as much as possible. Then gently pull a length of unwaxed dental floss through the tension mechanism a few times. If that doesn't work, there may be something really stuck that needs a technician to resolve.

Just FYI--ALWAYS raise the presser foot before threading the upper thread. This releases the tension disks so the thread will seat properly.

Has the machine been unused for a 'long' period of time? Some of the Janome machines did a similar thing - the oil becomes 'sticky'on the mechanism attached to the reverse lever. Can often be fixed by removing the free arm cover and spraying a little Innox (using the supplied straw) in the area where the lever operates. Work it back and forth .... it may come good. It could need tobe dismantled if it wont free up however. Good luck! :)

try the website
a1sewingmachines.com,, they have a phone number you can call about the parts you need.

http://userguides.50webs.com/

This site carries manuals from every Hyundai model of sewing machine
ever made.

It may not be the exact model number as yours,but one thing common among manufacturers is the technology they use stays mainly the same.The same basic model numbers may have minor changes,thus a change in model number.This is to make support and manufacturing easier and also helps keep costs down.It should at least look very similar in operation to your model.You do not have to sign up for anything and there is no junk after.Click download,then enter the 5 digit code and press download again.It will open a menu.If you want to save it permananetly click save.It will most likely save to your documents folder.For 1 time use click run.You may want to save this site for future reference also.It is excellent and has a wide variety of electronics.If this does not solve it,please do not approve/disapprove this yet as it will cut off our link,unless your problem is solved.If you have any questions or need more help,just comment here and I will get an autolink to your post and reply ASAP.I really encourage responses so I can follow up properly as I know where you stand and asking someone else restarts all the explaining because we cannot see other 'Expert's' responses.Good luck,Greg

http://www.retrevo.com/support/Euro-Pro-8260-manual/id/926ci961/t/2/
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Before oiling, turn the machine off and remove the power cord. Make sure you've brushed out the lint and dust from the feed dogs and bobbin holder. Then you can apply a drop of oil through the small hole in the feed plate to the left of the needle. Remove the light cover on the left, and place a drop of oil on the shaft near the top, after brushing to remove lint and dust. Turn the knob on the right back and forth, moving the needle up and down several times. Plug it in, turn it on, and go!

Parts are no longer available for euro-pro. Your machine may not be fixable.

With an oil can, remove all outside covers that you are confident to remove, most have screws through the bottom of the machine so you will need to tip it back, but make sure the machine lies on something soft when tipped on it's back. Remove all plastic covers, blow out all lint and dirt, then place a drop of oild on anything that moves. Run the machine without the covers to get rid of any extra oil, then re fit all panels ect.

click this link directly.http://www.euro-pro.com/europro/categorybrowse.aspx?cat=Sewing(EuroPro) ------------- this is direct link for the service center.you will have to enter the model number and place the order.this will help you.

if you very carefully lift the decorative plate at the bottom left corner you'll find hidden screw took me a while to find it cause mine