We just got a l4400d recently and the bucket neither goes up or down, does not tilt either. The 3 point in back didn't move, however, turned the flow valve under seat and it went up after a few minutes. When push lever down it drops very slowly. Power steering works .
I changed the hydraulic fluid and filter. I shouldention the tractor has 151 hours and has been sitting for a long time. The fluid I drained out was dark and hideous.
New fluid and still no actuation. Disconnected hoses going to block under right side to verify there is flow. Then checked the quick couplers on joystick ...there is oil flowing. I have not seen any trash or debris at this point. With tractor running, now, moving lever for up the bucket moves an inch bit no further. The tilt up worked but did not hold. I cracked the lines at the t for rams and when raising had good squirt of fluid. Same with t for tilt , there is pressure. On the joystick, the covers over springs on plungers I removed. The larger spring was rusted and corroded. I cleaned it up so it moved freely. I checked all the inlets outlets in joystick and saw no debris . Put it all back together and the same issue. No up or down on fel. Hoses vibrate at each position but no movement. The tilt up no longer moves up. There are no external leaks. I'm not sure where to go from here. Is there a way to check pressure from.pymp? Or what have I missed on the hydraulic system?
Any advice or suggestions are appreciated. I have not done much work with hydraulics.
I changed the hydraulic fluid and filter. I shouldention the tractor has 151 hours and has been sitting for a long time. The fluid I drained out was dark and hideous.
New fluid and still no actuation. Disconnected hoses going to block under right side to verify there is flow. Then checked the quick couplers on joystick ...there is oil flowing. I have not seen any trash or debris at this point. With tractor running, now, moving lever for up the bucket moves an inch bit no further. The tilt up worked but did not hold. I cracked the lines at the t for rams and when raising had good squirt of fluid. Same with t for tilt , there is pressure. On the joystick, the covers over springs on plungers I removed. The larger spring was rusted and corroded. I cleaned it up so it moved freely. I checked all the inlets outlets in joystick and saw no debris . Put it all back together and the same issue. No up or down on fel. Hoses vibrate at each position but no movement. The tilt up no longer moves up. There are no external leaks. I'm not sure where to go from here. Is there a way to check pressure from.pymp? Or what have I missed on the hydraulic system?
Any advice or suggestions are appreciated. I have not done much work with hydraulics.
