X900 steering controller

tfdr1

tfdr1

Active member
Has anyone had their steering control unit start leaking hydraulic fluid from around the shaft where steering wheel mounts? I was wondering if anyone has able to replace the seal vs buying a new unit for $730.
 

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I wonder if the illustrated parts catalog isn’t simply misleading/confusing….surely there’s seal-kit for that.
 
If the parts catalogue doesn't show it, Kubota doesn't sell it. It is possible that someone else makes it. You might have to take it out to see if there are manufacturer stampings or marks on it that could lead you to a rebuild kit. Did you check the fittings and hoses to make sure they aren't leaking?
 
Armyaviatr said:
If the parts catalogue doesn't show it, Kubota doesn't sell it. It is possible that someone else makes it. You might have to take it out to see if there are manufacturer stampings or marks on it that could lead you to a rebuild kit. Did you check the fittings and hoses to make sure they aren't leaking?
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Yeah, I've checked to make sure it's not a fitting or hose. It originally started leaking after I started the machine up last winter when it was -14f out and has gotten progressively worse since. I guess this is it's way of letting me know it was angry about the cold.

Dave
 
A little update... Used my Google Fu and found out the unit is a Danfoss controller similar to what's used in boats for hydraulic steering. I found a local hydraulic repair shop and he told me to bring it in and he'll replace the seal. Now the task of ripping it out begins.
 
tfdr1 said:
A little update... Used my Google Fu and found out the unit is a Danfoss controller similar to what's used in boats for hydraulic steering. I found a local hydraulic repair shop and he told me to bring it in and he'll replace the seal. Now the task of ripping it out begins.
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Yep… fouind this on Ebarf: (but slight difference in PN…. a 41511 instead of 41510


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I discovered that the seal isn't leaking, it's one of the hoses or fittings but it's going to have to wait until spring. Apparently the whole dash assembly needs to be removed to get at it and also my windshield assembly. I slapped everything back together so I can get ready to use it to plow the copious amounts of snow we're supposed to get this weekend.

I had a broken cable for the unloader that I replaced and I also changed the transmission fluid and filters so all was not lost.

Dave
 
I need to stop reading forums. I finally got my x1100 running today, I parked it in the garage because I need to replace all the suspension bushings. The previous owner didn't believe in applying grease to the zerks. Any way after a couple of minutes I noticed a couple of drops of fluid on the floor. After further inspection my steering controller is leaking. there is a bar code on the bottom but the leaking fluid has damaged the sticker making it un-readable. Need to brush up on my google fu.
 
Here's the part number for yours.
 

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Success! Midwest steering out of Independence MO. sells an original re seal kit from Sauer Danfoss. Here is the info in case anyone else runs into this problem. Original Sauer Danfoss OSPM Steering Valve Seal Kit 150L4054, SK143. They have a site on ebay, or you can contact them directly at (800) 237-5048. Cost was $102 with tax and shipping. Lots cheaper than buying a new unit from Kubota at $800+
 
I believe so. I haven't pulled it out of the machine yet, but the leak seems to coming from the top on the drivers side.
 
Armyaviatr said:
Success! Midwest steering out of Independence MO. sells an original re seal kit from Sauer Danfoss. Here is the info in case anyone else runs into this problem. Original Sauer Danfoss OSPM Steering Valve Seal Kit 150L4054, SK143. They have a site on ebay, or you can contact them directly at (800) 237-5048. Cost was $102 with tax and shipping. Lots cheaper than buying a new unit from Kubota at $800+
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I just saved a copy of that post in my RTV Owner’s Manual and WSM in the event of future need. THANKS!
 
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