Help me please, I have an older tractor that the deck seems to be stuck in the down position... after looking at the whole system I've decided I need a drawing or diagram to see just how it is supposed to be>>>

o.k.
Go to this website and you will find a parts list, and a diagram.
Dixiesales.com
Click on parts list,
Then click on more sears parts here,
Then enter your model #
And you can figure it out from there.