B2150D Power Steering Hydraulic Fluid Leak

[rich_ncal]

My Kubota B2150D has a hydraulic fluid leak in the area of the power steering assembly. At first look is the leak is near the top of the power steering near the shaft for the steering wheel.

The steering shaft also has some side to side play, in addition to rotational play. I am hoping that side to side play is just at the coupling of the two part steering shaft.

How easy is it to repeal the seal? There are four bolts on the steering column cover assembly. Is the seal just below that?

Is this a job for a shade tree mechanic with experience on small jobs like replacing water pumps, alternators and brakes?

Any ideas what a repair shop would charge to rebuild the power steering unit if I remove the entire power steering assembly and take this to a shop for repair?

 

[art]

It's coming from the top seal in your steering shaft. It does require removal of the steering shaft and the gearbox. We haven't done any lately to try and quote it but we see one every couple of years.

 

[rich_ncal]

The manual shows a set of needle bearings under the seal on the top of the power steering unit. I assume these are bearings in held races, not individual bearings as the wheels of an old bicycle. Is that correct, can anyone confirm this?

If I don't need to worry about individual bearings falling out into the dirt, it looks like a housing containing the top seal and bearings comes of in one assembly. After first removing the steering wheel and steering column, then there are four bolts to remove the housing containing the top seal and bearings. So I could remove that housing and then replace the top seal without removing the complete power steering assembly. Any advice is welcome.

 

[rich_ncal]

Attached is a diagram for power steering assembly.

 

[rich_ncal]

I replaced the leaking seal on the power steering assembly.

I did not have to pull the entire assembly.

First I had to pull the steering wheel. A friend fabricated a customer puller for me for the steering wheel, similar to the flat plate for the puller in the Kubota manual.

Then I removed the dash and the cover around the dash for access to the large nut around the steering column. The throttle level on the dash cover comes out with the dash cover, no pins or clips to remove for that. On the steering column the large nut is a lock nut so it only needs to be loosened a little to then unscrew the steering column.

With the steering column off then remove the steering shaft and then the top cover of the power steering assembly.

All together with the new oil seal and new bushing for the top of the steering column, a few other misc parts with shipping from Kubota, plus a tool for the snap ring above the seal and a can of gray spray paint from the local auto parts store the total was about $50.

If anyone has a similar tractor with the same problem, this power steering top seal is a job a shaded tree mechanic can handle.

 

[maryland44]

I replaced the leaking seal on the power steering assembly.

I did not have to pull the entire assembly.

First I had to pull the steering wheel. A friend fabricated a customer puller for me for the steering wheel, similar to the flat plate for the puller in the Kubota manual.

Then I removed the dash and the cover around the dash for access to the large nut around the steering column. The throttle level on the dash cover comes out with the dash cover, no pins or clips to remove for that. On the steering column the large nut is a lock nut so it only needs to be loosened a little to then unscrew the steering column.

With the steering column off then remove the steering shaft and then the top cover of the power steering assembly.

All together with the new oil seal and new bushing for the top of the steering column, a few other misc parts with shipping from Kubota, plus a tool for the snap ring above the seal and a can of gray spray paint from the local auto parts store the total was about $50.

If anyone has a similar tractor with the same problem, this power steering top seal is a job a shaded tree mechanic can handle.

First I had to pull the steering wheel. A friend fabricated a customer puller for me for the steering wheel, similar to the flat plate for the puller in the Kubota manual.

Then I removed the dash and the cover around the dash for access to the large nut around the steering column. The throttle level on the dash cover comes out with the dash cover, no pins or clips to remove for that. On the steering column the large nut is a lock nut so it only needs to be loosened a little to then unscrew the steering column.

With the steering column off then remove the steering shaft and then the top cover of the power steering assembly.

I have a leaking power steering pump on a 2150Hst.The fluids is leaking from the horizontal shaft that connects to the pitman arm.I removed the arm today,but was unable to remove the oil seal .I think I'll have to remove the shaft in order to tap out the seal from the opposite side of the pump.Does the service manual discuss the removal of the horizontal shaft.The parts manual makes it look pretty easy,after the dash cover is removed.If the manual provides the procedure for removing the dash cover,I would appreciate a copy of it.Thanks in advance for your help..

 

[tomf]

I'd just like to report that I have a B2400HSD that started leaking from the same place. The seal can be replaced without removing the steer assembly. Here's what I did:

1. Remove the dash, after removing the electical connectors
2. Remove the throttle handle
3. Rotate the cover up and around the steering wheel column after removing electrical connectors to gain access. (I didn't remove the steering wheel because I don't have a puller)
4. Remove the 4 nuts securing the column to the power steering assembly. This was the hardest part because there is limited room to turn the nuts. On two of the nuts I ended up using two different wrenches and rotating the nuts slightly first with one wrench then with the other.
5. With the 4 nuts removed, the steering column comes off
6. Remove the external snap ring on the shaft
7. Remove the internal snap ring holding the seal in place
8. Pry the seal out. I used a screwdriver.

The only new part needed is the seal unless you mess something up.

Installation is the reverse. Make sure the internal snap ring in correctly installed or the seal will pop out when the system is under pressure.

You will need a tool to remove and install the snap rings.