91 Coleman -where to lubricate chain


May 22, 2023
I’ve tried various searches and have come up empty. I’m looking for where to lube the chain that runs down from my waist-level crank handle.

I think its probably at the bottom of the chain, down at the end of the shaft driving the wiffle tree - HOWEVER, I am loathe to unscrew that cover for fear of springs and sprockets boinging out all over - is that the chain lube spot , and if not where is it? The wiffle tree was bone dry so I’m guessing the chain is too. Thanks! IMG_6499.jpeg