IH 574 gas

[JD4440]

Where is the block drain for the coolant?
Owners manual doesn't seem to helpful.
This past summer we replaced water pump, the fan hub had slid back allowing fan pulley to rub. Made an awful racket and threw sparks. Low hour tractor (1200 hr)
Probably the original pump. Water pump bypass seemed rather unique, never seen one like this. Also have never seen hub move on water pump before. Pump was not leaking.

 

[used red MN]

In the link go to picture that shows the side of the block with the 3 round expansion plugs showing. Look under the one on the left that has paint on it, a bit below that is the block drain.
IH C 200 block