Help-Steering loss complete
- Thread starter Jamita
- Start date
SpudHauler
Active member
Read this post for suggestions;
http://www.nettractortalk.com/forums/showthread.php?t=15527
My steering wheel would turn on both the 900 and 1100 without the engine running, but required effort.
http://www.nettractortalk.com/forums/showthread.php?t=15527
My steering wheel would turn on both the 900 and 1100 without the engine running, but required effort.
TWO GUNS
Senior Member
I would flush ( with a cheaper hydra fluid ) several times and make damn sure there was no moisture in the system. Then go back with Kubota SUPER UDT2 fluids. That's just my suggestion. You can't be TOO SAFE !!!
....... two guns
TWO GUNS
Senior Member
........ and hey, coolant just might what might be in there .... I don't think seals are damged.
This is just my opinion. This is what I would do.
Drain system. ( Properly Dispose of old, contaminated fluid ) Don't rush this. >>>>>>>>>>> Let it drain.
Fill back up with a quality hydraulic fluid, not necessarily has to be Kubota
at this moment, for your just going to run the machine and flush ....
Start up machine, run for awhile and turn the wheel back and forth and see what happens.
Make sure the system warms up good each time.
Drain sytem again, again, properly dispose of old, contaminated fluid , and REPEAT at lease three or four times. YOU CAN NOT DO THIS TO MANY TIMES. The more the better. Better chance of getting the "Bad" fluid completly out.
Then, on the very last fluid fill, FILL WITH KUBOTA SUPER UDT 2 .....
....... other members will chime in also and give their opinion ....
............... hope this helps,
two guns ...............
Post Script:
When you drain the first time, smell the drained fluid, and let's see what it smells like ....
Attachments
Years ago, we got water in our JD7420 transmission. We used cheap stuff to flush and did it like 3 times before going to the name brand. On the last go round, we drove the tractor and flushed it the final time after a couple of hrs driving - not hard work though. As Two Guns said ,it will save $ using the off brand to flush.
As far as the seals, You could give it a try , if you don't see any leaks or such...
I am wondering , on these used machines that folks have had trouble with, if the fluid has been changed with an off brand , before it was bought?? hence the moisture in the fluid...??? The power steering fluid in my '05 was perfect even with high hours... just wondering...
The UDT is really worth the price with all the inhibitors and wear reducers in it. A price worth paying. I won't use anything else.. bordercollie
As far as the seals, You could give it a try , if you don't see any leaks or such...
I am wondering , on these used machines that folks have had trouble with, if the fluid has been changed with an off brand , before it was bought?? hence the moisture in the fluid...??? The power steering fluid in my '05 was perfect even with high hours... just wondering...
The UDT is really worth the price with all the inhibitors and wear reducers in it. A price worth paying. I won't use anything else.. bordercollie
TWO GUNS
Senior Member
...... bordercollie,
that is a excellent point.
For we all know how "picky" the other hydraulic components are on the Kubota mahcines ............. two guns
TWO GUNS
Senior Member
Yes, that is exactly where I would drain. And remove or loosen cap on top when draining so it can be vented if need be ........
......... two guns
SpudHauler
Active member
Jamita,
I'm sure you already know, but just in case, the two tanks are very close together in my picture of my RTV900 2008 model.
Very easy to be adding coolant to the Power Steering tank and vice verse.
Perhaps the previous owner was mixing the two.
Your comment about fluid color is troublesome.
I'm sure you already know, but just in case, the two tanks are very close together in my picture of my RTV900 2008 model.
Very easy to be adding coolant to the Power Steering tank and vice verse.
Perhaps the previous owner was mixing the two.
Your comment about fluid color is troublesome.
Attachments
Very True Spudhauler..... That would be a definite cause for a problem...... having the wrong fluid in there.... . and Sure don't want to add hyd fluid to the coolant reservoir....
.... collie
.... collie
TWO GUNS
Senior Member
Very True Spudhauler..... That would be a definite cause for a problem...... having the wrong fluid in there.... . and Sure don't want to add hyd fluid to the coolant reservoir....
Yes, I agree also. It would cause a problem ....
........ two guns
Steering loss complete
Frustration setting in;
I've bled steering ram fittings on each side,both sides,engine running,engine stopped, turning steering wheel with wheels elevated;turning wheels stop to stop manually left then right;drained reservoir and replaced fluid.
Any more suggestions?
I'm going to try air pressure at fittings tomorrow to determine if ram will move .
Thanks
Jay
Frustration setting in;
I've bled steering ram fittings on each side,both sides,engine running,engine stopped, turning steering wheel with wheels elevated;turning wheels stop to stop manually left then right;drained reservoir and replaced fluid.
Any more suggestions?
I'm going to try air pressure at fittings tomorrow to determine if ram will move .
Thanks
Jay
SpudHauler
Active member
Jay, no air.
Lets think about this for a minute.
With a couple of quarts of cheap hydraulic oil in the reservoir tank, that should be enough for a test run and flush, the pump should pick this up and send it to the steering controller. From there it gets returned to the reservoir tank, so no problem here for air, because after 5 minutes running the engine, the pump would have pushed any air back to the tank. Might need to rotate the steering wheel a couple of times.
Then the other side is the two lines to the steering cylinder from the steering controller. Perhaps loosening the fitting at the cylinder for each side to visually check for oil leaking out would indicate oil is getting that far. Two person job to watch for a squirt of oil when wheel is turned in that direction. Leaving fittings just barely loose will help prove it's under pressure.
Air in the cylinder itself. My experience with hydraulics is that the seals will leak out the air until the cylinder fills with oil. Seals are only oil tight not air tight. But this will also take a little time.
If all this doesn't work, you will need to have someone do a pump pressure check at the line feeding the steering controller. No pressure, bad pump. Then another pressure check at each line feeding the steering cylinder. No pressure, bad steering controller.
Process of elimination done in the correct order should show results.
Common mechanics technique.
Don't get frustrated, get methodical.
Good Luck.
Lets think about this for a minute.
With a couple of quarts of cheap hydraulic oil in the reservoir tank, that should be enough for a test run and flush, the pump should pick this up and send it to the steering controller. From there it gets returned to the reservoir tank, so no problem here for air, because after 5 minutes running the engine, the pump would have pushed any air back to the tank. Might need to rotate the steering wheel a couple of times.
Then the other side is the two lines to the steering cylinder from the steering controller. Perhaps loosening the fitting at the cylinder for each side to visually check for oil leaking out would indicate oil is getting that far. Two person job to watch for a squirt of oil when wheel is turned in that direction. Leaving fittings just barely loose will help prove it's under pressure.
Air in the cylinder itself. My experience with hydraulics is that the seals will leak out the air until the cylinder fills with oil. Seals are only oil tight not air tight. But this will also take a little time.
If all this doesn't work, you will need to have someone do a pump pressure check at the line feeding the steering controller. No pressure, bad pump. Then another pressure check at each line feeding the steering cylinder. No pressure, bad steering controller.
Process of elimination done in the correct order should show results.
Common mechanics technique.
Don't get frustrated, get methodical.
Good Luck.
SpudHauler
Active member
More thoughts;
If the inlet to the pump is plugged at all the pressures will be very low.
Final check might be to remove all hoses and check for flow. Don't physically remove the hose just undo both ends and blow air through and check for any hidden screens Kubota might have installed.
Long shot but yours is unique case.
If the inlet to the pump is plugged at all the pressures will be very low.
Final check might be to remove all hoses and check for flow. Don't physically remove the hose just undo both ends and blow air through and check for any hidden screens Kubota might have installed.
Long shot but yours is unique case.
