I need to wind thread the bobbin for a husqvarna viking 500 computer sewing machine

SOURCE: Threading a husqvarna viking 3610

This should be your machine:

http://www.sewingmanuals.com/Viking_Pics/Viking_3610i1.jpg

Sewingmanuals.com shows that they have this downloadable in Adobe PDF format here:

http://www.sewingmanuals.com/Sewing_Machine_Manuals/Viking.htm

#37 in the list as of me posting this. You can get a CD version too but you'll just pay more and wait longer for the same thing. Once you have it print the manual (preferably both sides to keep it small) ang you'll have it. You can also peruse eBay to see if anyone is selling a manual but I doubt that will yield regular results. The machine looks to be pretty basic and standard but it's best you have the manual to get the most out of the machine. Also be sure to check the cleaning and lubrication section and go through the process so that the machine is in top working order before you put it into regular use - saves a lot of headaches.

SOURCE: Bobbin problem: Huskystar by Husqvarna Viking E10 sewing machine

This has happened to me, even though I have been sewing for 30 yrs. When I take the bobbin holder out I realise what I have done wrong. When placing a bobbin into the bobbin holder the thread must be running around the bobbin CLOCKWISE. If incorrect take bobbin out of holder turn it over, so now the thread will run clockwise.If bobbin placed in holder and thread runs anti-clockwise, when you tried to turn wheel to bring bobbin thread up, it will either not do it at all or will make a huge tangle of the threads. Happy Sewing

SOURCE: Need manual for Scandinavia 200 sewing machine

I have one.

SOURCE: husqvarna sewing machine - viking 400

Take to authorized Husqvarna Viking dealer for repair. This is not something that can be done by the owner. Check Husqvarna Viking website for dealer closest too you.

SOURCE: viking husqvarna classica 100, thread tension

I suspect you are correctly threading the machine but the timing of the needle and bobbin hook is off. When the threaded needle goes into the bobbin area, a pointed hook grabs the thread and loops it with the bobbin thread. Something is catching when the needle starts to come up that is not allowing the bobbin thread to be pulled back through the needle plate opening by the upper thread. With machine threaded and bobbin in place, have the bobbin area open if possible and watch the thread interaction when the needle goes down. To set the hook/needle timing, normally covers have to be removed. Suggest taking it to an authorized Husqvarna Viking dealer for service. You can find the nearest dealer by click on the "Dealer" link at http://www.husqvarnaviking.com
Good luck.