Kubota Top N Tilt
- Thread starter jim0316
- Start date
BigG
Well-known member
Equipment
l2501, FEL, BB, Rotary cutter, rake,spreader, roller, etc. New Holland TL80 A
Disconnect / reconnect all the hydraulic lines one at a time and make sure they are connected correctly.
Check fluid level.
Check fluid level.
Kubota remote hydraulic systems are notorious for not holding position.
See your dealer if still within warranty.
SDT
How much does the drifting actually affect your operation of the tractor?
There are times when people are not realistic, and expect nothing to move,EVER. To me, if the rod extending affects the operation of the task being performed, then it needs to be addressed. If your main issue is when bush hogging, then simply disconnect the rod end coupler of the side link cylinder. If the rod extends when grading, then you need a remedy of some sort.
VERY good chance that the control valve is faulty.
But just to be sure, with an implement attached and the implement on the ground, disconnect the couplers. Mark the rods next to the cylinder seal with a felt pen or a piece of tape. Raise the implement. Check in 1 hour how far the rods have extended on their own. If it is less than 1/4", (probably less than 1/8" in reality) the cylinders are fine. Your control valve-s are then your problem.
If you have a GREAT dealer, they might check it out. Kubota Corporate will not address this problem. " We're sorry, but that's how it is" is their answer to this defect. They will not fix the problem.
There are 3 solutions that keep the hydraulic cylinders in place.
First, cheapest and an all around PITA is to simply disconnect the rod end coupler when not in use. This gets old real quick.
Second, install DPOCV (check valves) on the cylinder-s.
Problem with the check valve solution is if you happen to have and use the float feature, that feature is no longer an option with the controls.
3rd option, install an electric on-off valve at the coupler for the rod end connection. Valve is closed, the cylinder is rock solid. Need to adjust or use the cylinder float feature, then the valve is left open.
These are the 3 ways that I know about to deal with the issue and still have hydraulic adjustments.
I recommend the electric valve option if you have the float feature with your control valves. No float feature, go with the check valve-s.
Good luck.
There are times when people are not realistic, and expect nothing to move,EVER. To me, if the rod extending affects the operation of the task being performed, then it needs to be addressed. If your main issue is when bush hogging, then simply disconnect the rod end coupler of the side link cylinder. If the rod extends when grading, then you need a remedy of some sort.
VERY good chance that the control valve is faulty.
But just to be sure, with an implement attached and the implement on the ground, disconnect the couplers. Mark the rods next to the cylinder seal with a felt pen or a piece of tape. Raise the implement. Check in 1 hour how far the rods have extended on their own. If it is less than 1/4", (probably less than 1/8" in reality) the cylinders are fine. Your control valve-s are then your problem.
If you have a GREAT dealer, they might check it out. Kubota Corporate will not address this problem. " We're sorry, but that's how it is" is their answer to this defect.
They will not fix the problem. There are 3 solutions that keep the hydraulic cylinders in place.
First, cheapest and an all around PITA is to simply disconnect the rod end coupler when not in use. This gets old real quick.
Second, install DPOCV (check valves) on the cylinder-s.
Problem with the check valve solution is if you happen to have and use the float feature, that feature is no longer an option with the controls.
3rd option, install an electric on-off valve at the coupler for the rod end connection. Valve is closed, the cylinder is rock solid. Need to adjust or use the cylinder float feature, then the valve is left open.
These are the 3 ways that I know about to deal with the issue and still have hydraulic adjustments.
I recommend the electric valve option if you have the float feature with your control valves. No float feature, go with the check valve-s.
Good luck.
In my M9540 Operators Manual it says to connect the hydraulic lines to specific points to prevent leak-down. I don't know if this applies to other models.
Attachments
His MX does not have the same type valves that are used on the M series tractors. Plus a majority of said valve issues have come up when the 40 series tractors were changed over to the 60 series.
I very seldom heard about these valve issues with any of the 40 series tractors. The drifting issues became very apparent with the 60 series and the MX tractors in the same time period.
Unfortunately in the last year or 2 it seems to have crossed over to all the Kubota models with an open center hydraulic system.
Maybe it's just people are more educated about these issues now and before most people just figured that was how it was?
What I do know for a fact is that the drifting issue has become much more recognized and talked about.