Looking for replacement cam

The manual will usually have a copyright date or printed date something like ' 05/97 '.

The best price I found was $171 on eBay. You can search for prices sold there. I also found this which makes it 50 years old.

1974 Warranty
https://www.reddit.com/r/sewing/comments/cm6lrp/husqvarna_viking_sewing_machine_5530_what_should/

and this makes it 40 years old

Viking 5530 like new for $100 worth it??

patternreview.com https://sewing.patternreview.com > topic Jun 13, 2014 - But forget the like new thing, as that cannot be, as it's cam stack is 30 years old. But, they are not for the faint of heart either and ...

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More results from sewing.patternreview.com

More here

https://www.google.com/search?q=husqvarna+viking+5530+sewing+machine

..

Unfortunately, I'm unable to locate a web site or video for this beautiful machine. You can get a user manual from Husqvarna/Viking here:

Husqvarna Viking sewing machine manuals

Service manual here:
Viking Husqvarna Sewing Machine Service Manuals

Not your model, but may be helpful:
Demonstration Video of Vintage Viking 6690 Sewing Machine
viking husqvarna 6440 sewing machine

Yes your fixed cam could be cracked and that will have those symptons. Here is a video.

Yep, it's out of time. You'll need to either pay to have it timed or Do it yourself. Personally zig zags are a bit of a pain... I would pay.

I found this download for $5.00 - http://gotoes.org/sales/VikingSewingMachineManuals/ViewInfo.pl?Viking=1&Sewing_Machine_Model=6440

I'm trying to find a machine similar to yours and have done much research re: the older mech viking sewing machines 6000 series. They are GREAT machines, suffering only from problems such as yours caused by the old "lube/grease" they used when it was made @ factory. In their efforts of making a "never needs oil" mech sewing machine, the grease tends to harden & freeze up the gears & cams inside the machine. You need to have it serviced @ authorized Viking shop as you have to completely disassemble the machines & gears, clean, re-lube, & re calibrate the gears... I understand this s/b ~ $175. Money well spent considering if taken care of your beauty could be sewing for another 60 yrs!
Hope this helps!

saw some on ebay a while back

Check ebay. They sell a lot of parts and/or machines for repair.

The cheapest manual I have found for the model 6440 is at http://gotoes.org/sales/VikingSewingMachineManuals/ViewInfo.pl?Viking=1&Sewing_Machine_Model=6440
It is a downloadable version also sent by email.
There is a free threading diagram including bobbin info at www.sewusa.com. Repair manuals are available on ebay and run ten dollars or more.

Hi,
A seller on e-bay who redoes Viking machines says the the grease they put in them (the older vikings) becomes too stiff and the knobs stop turning. He cleans them out and then he adds some kind of teflon lubricant. Probably can find him on e-bay still. He is informative.
Kathy