560D hydraulic valve stack support

[SinkholeRoad]

I have some hytran leaking from between the hydraulic valve support and the transmission body. Is there an oring between? Can I partly disassemble then raise the valve stack to change the oring?

 

[caterpillar guy]

Probably more likely to be an o-ring between the valves leaking. Though I'm sure somebody will correct me on this since I have not looked at a parts book nor had one apart on a 560.

 

[SinkholeRoad]

The leak is definitely coming from between the valve support and the transmission. I am assuming that this is the location where the valve stack returns hydraulic oil back to the transmission. My question is, what type of seal is used between the valve stack support and the transmission. Looking at my image it is clearly leaking from between them.

 

[Janicholson]

This link takes you to the 560D page for parts select Hydraulic Valve stack From the list (diagram 218) Jim

 

[SinkholeRoad]

This link takes you to the 560D page for parts select Hydraulic Valve stack From the list (diagram 218) Jim

I am not seeing a link??

 

[Janicholson]

Messicks
Link didn't post before. Sorry Jim

 

[Hayfarmer]

There are several o rings in there, a larger one for oil return. I think I was able to loosten valve stack and raise that plate enough to replace O rings. It has been a while so I can't remember exactly.

 

[SinkholeRoad]

Just updating this for archive purposes. If someone else runs into this problem, I unbolted the stack, disconnected the steering line and raised the entire stack just enough to swap the oring. In the image is the part number for the oring. Worked perfect and the leak stopped!!!!