Huskylock 700 needles

http://manuals.husqvarnaviking.com/VSM/Husqvarna%20Viking/HVManual.nsf/1fd5659e6f37141041256697003e64c0/d8e7e6f871334eca852575ed0075b70e/$FILE/Huskylock%20435-435C435D%20x%20.PDF

https://www.sewingpartsonline.com/husqvarna-viking-535d-serger-machine-parts.aspx

First, make sure the machine is engaged to sew. some machines,
have a knob inside the flywheel on the left side that disconnect the sewing mechanism to wind a bobbin without the needle bar moving.
Cheers,
Embroidery Services
San Diego, CA

try this link for a manual, the information you need should be in it
Viking 431 441 530 Huskylock Handbook

Look in your owner's manual for needle replacement procedure. You have to unscrew the small screw holding the needle.
Be careful that the new needle is properly seated before screwing it tight. Otherwise, you might end up with it slightly askew.

Hi:

Are you sure it's coming out? Or is it breaking at the needle?

Try replacing the right needle and do a test stitch. If it still comes out of the needle... loosen that threads tension a little.

try sewingpartsonline.com

or premiersewing.com

have you tried these two websites for the part

sewingpartsonline.com

sewvacdoctor.com

sounds like the sewing head is out of line. Suggest that it be serviced by an authorized Husqvarna Viking Dealer. You can find the nearest dealer by click on the "Dealer" link at http://www.husqvarnaviking.com
Good luck.

First thing to try is a new needle and make sure it is inserted into the needle holder all the way! There is a small opening in the needle clamp. Look closely at it when you're inserting the needle and you will see the top of the needle through that hole as it reaches it's top position. Also check the needle plate, are there 2 small needle like pins in the plate? If one of them has broken out of the plate, you'll have a hard time getting it to sew correctly. If it is missing one, you need to buy a new plate. If all of that is correct and it still doesn't sew properly (and you're sure it's threaded right), a trip to your service tech will be needed.

Sorry, not familiar with the Huskylock 700. Suggest you visit authorized husqvarna viking dealer. 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.