Hydraulic Spool mistake...... Case 580C Backhoe

[CJONE]

I took it to 2 machine shops, and the answer would probably cost me more than finding a new one. I found a used one thru schaffer enterprizes in MI for $300. The valve is supposed to come to me complete, but Ill probably replace all the 0-rings anyway. Should I replace the 'innerds' with the one I have? ( pressure reliefs, etc) - or give it a whirl as is?

Pic is of the broke oneView attachment 473904

Compare the spool from yours and the new one. Be sure they match up as far as the spacing. You have to use your work port reliefs as they are set to your machine. The new ones may be the same but why chance it. DO NOT overtighten the stack bolts, if you do you will warp the sections. 30-35 ft lbs is all I ever go. CJ

 

[Equineguy05]

Thanks for the info and tips!!! I ended up taking this section off while on the machine ( vs taking the entire valve assembly off ), which was one heck of a job.

All is back in place and working well. Putting it back together while on the machine went easier than taking it off. Id say a good hour or so. I do not envy doing it again tho.

Anyone ever mess with switching over to quick connect couplers for the hoses that attach to the valves? Seems like in the long run it would be easier to deal with. ( or would that create another area of failure? )