Case 2090 Powershift problem

Hi All,

I did a search, but couldnt find an answer.

Case 2090. Just stopped working in powershift range 2 and 3.

It feels as though its still in PS 1.

Tractor drives fine in PS1 and R, but wont shift up.

Steering works fine.

Pulled off the PS valve body - all spools were moving freely. Appeared to be a bulge and tear in the gasket between the outer cover and the valve body - would have been where it says C1 on the cover plate.

Some debris under the trans filters, but nothing too extensive.

Any thoughts on why it wont shift up to PS 2 or 3?

Thanks

My 2090 lost reverse, Power shift 1 and power shift 3. With the foot clutch outward sitting in power shift 1, I could push the power shift to #2 and the tractor would move properly. Three point hitch would only raise if you pushed in the clutch. I know using the three point and foot clutch are helpful tools in determining the problem. Pushing the clutch in closed off the flow to that specific clutch pack. Therefor the three point could get pressure. It developed this problem while sitting in the shed. I had ran it to town to the car wash and backed it in the shed. I did start it a time or two during the winter of 2019/20. Went to move it in the spring and the problem was there! Never before had any problems with the power shift. Did all of the normal things like checking fluids, changing filters, etc. Did check the spools. After taking the valve body off I could see that one of the tubes that transfers fluid into the clutch packs had pushed outward. Pulled it out and put new "O" rings on it and put it back in place. Works fine. Experienced Case mechanic told me that the same tube generally causes the problem. Maybe the tube had been working outward and maybe starting it in very cold weather while I was putting a cab kit in helped push the tube out??? Don't know. Maybe they just work outward or maybe the "O" rings go flat and have less tension. Lastly, blown bad gaskets can cause a problem.

The common clutch pack used in PS2 and PS3 is C-3. Without testing the unit I would suspect a leak or mechanical problem in that circuit. Checking the valve and oil feed tubes as mentioned earlier first is a good idea. The greatest majority of the time I have found the problem to be in the PS unit itself. That of course will require splitting the tractor. Rod.