[Gompers]

Originally Posted by R Bedell

My suggestion would be two change out the Hydraulic Fluid, pull the rear cover and thoroughly clean up the entire rear end, install a new Hydro Filter, and install some new Hydro Fluid (ie: HyTran, etc).

The 18xx series tractors go back to the late 1980's and only God knows what fluid is in it over the last 30+ yrs.

I'd agree with this. That's way too few hours for that hyrdo to cause problems. Fluid and filter are the first things I'd look into. Hytran is ideal, but a bit spendy.

Could double check the driveline as well and make sure everything there is ok and the charge pump is turning properly.