So I recently purchased a 17a. I did a job for a farmer tramping and piling about 60 hours. I noticed after about 25 hours after starting the tractor in the morning I could not get it into gear. The clutch didn't seem to be doing anything. I then started warming up the tractor for a few minutes then kill the engine put it in gear and fire it back up and take off. Once the tractor warmed up it seemed like the clutch worked fine but near the end of the day it seemed like when going forward to back it somtimes would not want to go into gear. A simple slight movement of the clutch back and forth slightly and it would go in. It's never slipped while pushing some impressive loads. I believe it's a wet clutch as there is a dip stick through the floor boards. I was told a simple adjustment will fix the issue but I'm not sure if I adjust the linkage or on the clutch itself. Also if it is on the clutch itself what direction to adjust and how much?