My husqvarna viking classica 100 is sewing backwards. how do i fix this?

Question edited for clarity and correct order of make model.
Question moved for Cars and Trucks category.

Unfortunately there isn't one. Owner manual only. Service agents are factory trained, and have online resources, but generally they already know their way around inside all machines.

https://www.google.com/search?q=Husqvarna+Viking+Classica+100+service+manual

If it is stuck in reverse, there is help on Fixya from 2012.
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Owner's Manual only.

https://www.google.com/search?q=Husqvarna+Viking+Classica+100+Service+manual

Check out videos 3 and 4.

https://www.google.com/search?q=Husqvarna+Viking+Classica+100+reverse+not+working

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if you don't have the accessory that looks like a short piece of rubber hose used to remove and reinstall the bulb, take the machine to an authorized Viking repair dealer and ask them to install a new bulb.

Look at this page for a visual to help you determine the type of "shank" you have.

http://www.clotilde.com/pages/which_foot.html

Sewing machine manuals are always a necessity.  This one costs $8.00http://www.sewusa.com/Sewing_Machine_Manuals/Viking_Manuals/100_Classica_Instruction_Manual.htm
Happy Sewing!

Direct from Viking or from a Viking dealer

I have a copy. If you still need it, I can e-mail you a copy.

Yes, these parts should be replaced. Original parts are only available from an authorized Husqvarna Viking Dealer. The service/repair is very intense and should be performed by a certified Husqvarna Viking service technician through the Dealer. You can find the nearest dealer by click on the "Dealer" link at http://www.husqvarnaviking.com
Good luck.

Call Husqvarna at: 1-800-474-6437. They may be able to get you a photo copy of the original owners manual.

I find a classica 100 on www.sewingmanuals.com. Would that be similar?