john deere 710c

[mguitas]

Ok guys! I will give as much info as possible. Problem... 710c works perfectly one day. Next day after using backhoe for 5 minutes I noticed an audible drop in engine rpm and the Hoe bucket and dipper stick were sluggish. I tried to open the throttle to increase rpm....made no difference. It eventually stalled the motor. this condition still remains. what I researched and tried so far. Drained fuel replaced fuel filter. Found that the destroke solenoid at the main hydrauylic pump was bad. I replaced it. I cleaned both air filters. I reattached the torque converter solenoid that had been torn from its harness. I have no visible leaks beyond some cylinder seal seepage that is minimal. I checked my control linkages ,all seems ok? NOW, when I purchased this used it had a broken differential lock pedal. The pedal is in its locked position but I don't think that would be any problem. Lastly, my curl stick for rear bucket does get stuck while curling on occasion but this has always done this since the purchase 3 yrs ago. Not sure where to look next. I have been told that it seems to be a fuel problem....not hydraulic. Any advice would be appreciated.

 

[EddieWalker]

How many fuel filters did you change? The loss of RPM's makes me think you missed something. Is there a screen inside the fuel pump? A glass bowl looking thing that you can see the color of the fuel in it? Is there a water separator along the fuel line? Do you have screw in fuel filters that look like oil filters? When you drained the fuel tank, did you clean it out too? Older tractors have tons of rust on the bottom of their tanks and that rust plugs up the fuel lines. Did you blow out the fuel line with an air compressor?

 

[mguitas]

Eddie thanks for your input, there was what I call a sock shape thing in the gas tank that I miss. It was very dirty. 710 runs normal now, an thanks.