I'm not positive, but I think the knurled knob for the 306 is part number 113122. I hope you can find one and get this back to working order.

Janey - Neat people never make the exciting discoveries I do.

Thank you! I wonder if the same part fits the 306 or the 319?

From the Singer parts list for 306w-24 and 306w-25: Should be the same for all 306's that have fashion disks, right?
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It looks like you need part 200AL, I think, the set screw.

Can't beat the price of 99 cents. I have noticed that either eBay or PayPal will pay for return shipping and you can bet they collect THAT from the seller so it must be getting them to pack and ship items safer.

Thanks for posting this...I've been racking my brain trying to remember which Singer my mom owned. It also took cams, but was a mocha color. It might have been a 306. Wish we would have kept it at the time she died. I did purchase a 301A mocha long bed....it still reminds me of moms machine.

I would love to see a photo of this cleaned up. If it uses the white discs, I have some and they could be yours for the price of shipping. Fun machine!

It will use the black flat cams. The white cams are for a Touch and Sew I think. ;) Thank you for the offer tho!

Lindaschipper, I am glad I posted it too if it helped to remember mom's machine. Maybe you ca find one too!

I found the listing I was thinking of that had the knob, but it's for a 328 and they want $20 for it (free shipping, at least). I have no idea if that'll fit, but here's the listing anyway: http://www.ebay.com/itm/Singer-Sewin...item3aa61c3b07

I have its step sister .. a 306W .. I love it and sew everyday on it. You are going to love it. It does take a shorter needle !

Yes, the knurled knob to hold the cams on is the same for the 306 and the 319... I just double checked with my green 319W & beige 306W.

Janey - Neat people never make the exciting discoveries I do.