[CaptainKlutz]

Congratulations on planer.
Will buy most any 15" planer I see for $250 instantly. A full rebuild with all new bearings/seals only costs $150. Even a new out-feed roller is only $85. They sell for $600-650 in new rebuilt condition. So it's hard to lose money when you get them cheap.

King Usa is defunct import company formally located in Florida back in 90's. You won't find much information on any of their tools. Pretty sure the King crown trademark was bought at bankruptcy auction and moved to Canada. It's also confusing that there is a King Machinery in Taiwan and one in China. :-0)
Figured this out awhile back when I wanted information on King Bandsaw. LOL

Your King looks identical to the DC-380 PN 22-680 that I rebuilt. Delta sold the base separate, and there were several different model numbers within 'DC-380' family depending on configuration of base.

Delta DC-380 came in both 2HP and 3HP versions. Majority I have seen with top mounted motor were 2HP. Can always tell the motor HP on Delta by base configuration. The cheaper open bases like your 4 legged base were 2HP, the beefier looking wrap wound stamp steel bases were later model 3HP.

There are numerous posts on LJ about commonality of Asian made 15" planers. So don't limit your searches to just King, but look at all 15" planer posts. :-0)

Best Luck.

 

[CaptainKlutz]

If the feed roller shafts are same OD as other clones, might be able to swap out all 3 sprockets, and both chains?

Grizzly g1021/g1033, Jet/Powermatic, and Delta DC-380 cloned Taiwan made planers use a 17mm shaft with ~5mm key for feed roller sprockets. The two large sprockets are 31T. Only know as I have some abused feed rollers on hand, and Powermatic machine torn down with gear box open for repairs with Grizzly parts right now.

Be sure to check the 'good' chain for stretch wear, and replace if oversize. IME - If one chain is worn/stretched to the point it broke teeth off sprockets, then both chains and all 3 sprockets probably need replaced. YMMV

IMHO - The Taiwan 4 post planers have design weakness in the feed roller drive chain/sprockets, especially the out feed roller. Early machines do not have a chain tensioner on the chain from drive sprocket to out feed roller. When the chain wears/stretches; it fails by dropping the chain and typically ripping teeth off one or more of the sprockets. Not a pretty failure. To avoid future issues, have retro-fit a Delta and Powermatic 15" planer with 2nd tensioner, using ~$20 in parts from Grizzly G1021/G1033 spare parts.

Best Luck!