dryfire152
New member
- Joined
- Oct 3, 2010
- Messages
- 6
Maintain and use a JD4400 with hydrstatic trany (think it's an 01) for an employer. Had hydro leaks at seals on the loader control valves, which caused a lose of oil. replaced seals, checked hydro level window, was full. Tractor ran fine for a couple of months. then I hooked up an airrator that has a single ram for raising and lowering the unit. The ram was new and I used the hydro lines from the mower decks ram. Before job was done, the boss used the tractor to airate some of the grass. He complained of no low gears only high, no neutral also. when in lower gear selections. engine boggs down a little but no movement. checked hydro level when I learned of his situation and found window to be empty, told him it was my fault for not posting the tractor, do not use. We need lower gears for fine jobs. All other systems work fine, like PS, brakes, loader and atachments. I filled with new hydro oil that was sent to us from dealer. I have no operator's manual to trouble shoot the system, I know it's probably a bad filter, air in system or some such BS. Hope problem does not indicate an issue that requires a trany service. Any info would be very gratefull. Also, Is there any setting or something I might not know of that prohibits the lower gears from working?