mish in NJ

I'm having a terrible time trying to thread this tension system.
Top has flat tension I've never seen before, and the bobbin goes
in something nicknamed a "wishbone" bobbincase.
I've cleaned, oiled....New needle, New thread in bobbin....

I have the original manual to follow, but the picture is hard to see
exactly where thread path is...and written description isn't helping
me. I tried web search, found a few sites but it still isn't clear
enough to get it correct. Machine runs beautifully, smooth, strong
and amazingly quiet.
I'd like to get it running so I can donate it to the senior center....
They desperately need a machine.
Thanks so much
Mish k in NJ