Hello CCI enthusiasts, I have a what looks to be original 220. I just recently have put some time aside to get it operating as it should. When I first bought the 220 the owner told me the deck was inoperable. When I got thee tractor home I was driving it around the yard and was able to get the blades to spin if I held the PTO lever hard in the on position. The lever would not stay engaged and the blades seemed to turn half heartedly. That was last year. Yesterday I treated her to some maintenance. Drained and cleaned out fuel tank, new plug, carb cleaned, air filter cleaned, and clened the fins on the heat exchanger. She runs great. While she was running, I revved her up with the hood up and tried to engage the PTO so I could see the mechanism while running. The linkages seemed a little loose, but if I held the lever in the on position and kept pushing up on it, the blade belt would start to move very slowly. Is there an adjustment for the clutch or linkages that would make it possible for the clutch to fully engage? And could you guide me to the proper portion of the forum for info on this tractor. 1973 Case 220 9673628. Thanks all!