Hello to all and thank you for taking the time to read this request for assistance, this may be a quick answer from the group and I apologize for the long winded story, in bold is the quick question if you need to skip. I have recently registered here on Orange but have scoured a number of previous posts on my issue at hand prior to registration and posting. There may be a thread that I have missed or a simple fix so I apologize if this is repetitive and am more than happy to jump over to one that can answer it. I am also quite new to Kubota, this is my first, I have an L185DT purchased by my father a few years ago from a single owner who bought it in March 1980. It has a FEL and power steering (Kubota brand -PS L9110 and FEL L1200 model) added by the previous owner, in the pictures I post there is the added block with the lines for these. Since purchase, I have only used the FEL for light use on a small farm but have acquired some implements that I'd like to use.
I have done a number of repairs (see below for list of troubleshooting/repairs) and am up to my current problem which is that the 3 point arms will only work while the FEL bucket control lever (right lever) is being engaged (tilting either direction even when fully up). Unfortunately I was not present during purchase to see how the 3 point hitch operates on this tractor, I was just told they did. I am fine with this set up as everything is working, my worry is that this may not be normal and I could be damaging internal components if I continue. Any insight would be most helpful, thank you, A.
Troubleshooting/repair list:
Initially the arms did not work and no combination of anything I tried would make them move. The arms free floated and could be raised by hand but the FEL and PS worked well with no issues making me assume the pump was good. I started simple:
-turned both ways and inbetween the down speed/control knob just under the seat- No movement
-checked the pin at the base of the hydraulic control lever - Intact
-changed hyd fluid and purchased new screen filter - No movement
-pulled the piston under the seat and replaced o-ring and backup ring - No damage/scoring to piston, cylinder wall or rod, no buildup of sludge
I performed a recommended external test on the control valve, where the arms stayed up after turning the control knob to stop and shutting off the tractor. Apparently this would indicated an issue with the control valves inside of the housing.
-pulled the top off of the rear housing under the seat and replaced o-rings to the control valve, some buildup but quite clean, followed the service manual provided on one of these threads. Internal gearing at the arms looked clean and undamaged.
-also pulled the oil pressure assy block off and checked for plugging - all cleaned, no issue noted.
-reattached everything, still no movement in arms
-pulled the loader and power steer assy block off and replaced with original cap- arms worked perfectly
-reassembled block and no movement until finding the above combination to make arms work.
I have done a number of repairs (see below for list of troubleshooting/repairs) and am up to my current problem which is that the 3 point arms will only work while the FEL bucket control lever (right lever) is being engaged (tilting either direction even when fully up). Unfortunately I was not present during purchase to see how the 3 point hitch operates on this tractor, I was just told they did. I am fine with this set up as everything is working, my worry is that this may not be normal and I could be damaging internal components if I continue. Any insight would be most helpful, thank you, A.
Troubleshooting/repair list:
Initially the arms did not work and no combination of anything I tried would make them move. The arms free floated and could be raised by hand but the FEL and PS worked well with no issues making me assume the pump was good. I started simple:
-turned both ways and inbetween the down speed/control knob just under the seat- No movement
-checked the pin at the base of the hydraulic control lever - Intact
-changed hyd fluid and purchased new screen filter - No movement
-pulled the piston under the seat and replaced o-ring and backup ring - No damage/scoring to piston, cylinder wall or rod, no buildup of sludge
I performed a recommended external test on the control valve, where the arms stayed up after turning the control knob to stop and shutting off the tractor. Apparently this would indicated an issue with the control valves inside of the housing.
-pulled the top off of the rear housing under the seat and replaced o-rings to the control valve, some buildup but quite clean, followed the service manual provided on one of these threads. Internal gearing at the arms looked clean and undamaged.
-also pulled the oil pressure assy block off and checked for plugging - all cleaned, no issue noted.
-reattached everything, still no movement in arms
-pulled the loader and power steer assy block off and replaced with original cap- arms worked perfectly
-reassembled block and no movement until finding the above combination to make arms work.
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