4640 is having issues with the aux. hydraulics.
The tractor is being used with a feeder, when the door to the feeder is opened the hydraulics are allowing the door to shut and not keeping it held open, as if the cylinder is bleeding off, but it does not do this on any of the other tractors so I know its not the cylinder.
I was asked to repack the implement valves when I showed up, I never got to see how the tractor acted beforehand. The implement valves on the back of the tractor were disassembled and resealed,none of the seals were blown inside the valve as was originally suspected, there was some sludge inside the valves that was cleaned up as best as possible but other than that no issues that I could see. The cylinder bleeds off no matter which valve it is hooked to.
TIA, Slim
The tractor is being used with a feeder, when the door to the feeder is opened the hydraulics are allowing the door to shut and not keeping it held open, as if the cylinder is bleeding off, but it does not do this on any of the other tractors so I know its not the cylinder.
I was asked to repack the implement valves when I showed up, I never got to see how the tractor acted beforehand. The implement valves on the back of the tractor were disassembled and resealed,none of the seals were blown inside the valve as was originally suspected, there was some sludge inside the valves that was cleaned up as best as possible but other than that no issues that I could see. The cylinder bleeds off no matter which valve it is hooked to.
TIA, Slim