Just brought my late granddad's cadet 111 home the other day and it fired right up...I know it has not been out of that shed since 1998! Love IH! So she runs and I'm going to give her a nice overhaul however she will not drive. The blades come on but nothing forward or backward. I did discover a missing tensioner spring which I have replaced and have the belts snug. I feel zero movement when releasing the clutch pedal. Just looking for some advise on where to start the trouble shooting process. I didn't find any manuals or tech info on the 111...I believe the 76 is a close model. Any help would be great!