ctltmp your pic you posted today is of the newer style throwout bearing holder, used above serial number 32229, with the external free play adjustment.
Below are pics from TM Tractor of a new one. The bottom left pic on the page shows what you see in your pic today.
http://www.tmtractor.com/new/cl/112fp.htm
The holders below 32229 are different. In my post on page 1 of this post, with the page from the operator's manual, it shows the drawing of the clutch in the bottom pic. The holder is installed with the bottom of the curve to the rear. Looking straight up from the hand hole, you can see the grease fitting, but that might not be how they actually are.
