john deere 6405

JD 6405 tractor with a SyncroPlus transmission...The pressure sending unit oil filter restriction warning lamp came on. I put new filters on everything. Trans. Hydro etc. The light is still on and my book does not tell me how to test the system. What should I look for next?

I have a John Deere 6405 in which the clutch stopped working. I have system pressure but no clutch pressure. Checked engagement over ride value and clutch pedal valve; both seem fine. Any ideas as to what to try now?

I was bush-hogging and the hydraulic return line that goes to the filter blew off. I repaired it and added oil back to the tractor, now it will not move nor will the pto work. The 3 point, hydrolic remotes and steering all work at this time. Any ideas??

My PTO is turning an 8' flail mower and while the engine is running great, suddenly when under a load the PTO just slows to a halt. The flail mower does not seem to be the problem as once I stop the engine and raise the mower, I can turn the PTO shaft by hand and rotate the 8' flail mower...

My 6405 is equipped with triple flail mowers for cutting my 3600' airstrip. Cuts 19.5' wide and was running perfect. UNTIL, during last three uses, it dies down after about 20 minutes use. No overheating, no smoke, just seems to loose power like its starved for fuel. I was sure it was a...