Sold my 318 with a 44 loader to fund a nice 332. Found a beautiful example a 1990 (serial x0122) with 700 hours on it only 1600 miles away. It made it 1590 miles...
Had it tied down with ratchet straps over the front frame and rear axle. Front tire lost air, front strap came undone tractor backed off the flatbed trailer and the front strap hooked the front mule drive with the front tires still on the trailer and i dragged it down the highway at 35-40 mph for 300 feet. Shoulda coulda; extra strap, parking brake, block the tires, i know... it wont happen again...
Tractor left a trail of AT fluid on the ground as it was towed at a 45 degree angle. lost about a quart. I have since added back to correct operating level.
Hydrostatic transmission does not move in forward or reverse, makes the typical sound when operating normally but no movement. When the towing relief valves are depressed the sound stops and the valves pop back out. Power steering and lift do not work either. I read in another post where this happened and they put it on jack stands and operated the hydro levers for 20 min to bleed the air out. I tried this for 10 min with no effect.
When on jack stands rear tires rotate in opposite directions.
I have the repair manual for a Sundstrand type 15U. Are there different hydrostatic transmission variations?
Next step is to run the hydro for a few more minutes and pray. Then possibly pull the relief valves and see if it is stuck open.
Anything else I should check before i pull the rear end?