Case 680e tilt and lift spools

[Scott b]

Hi, both the lift and tilt spools are leaking hydraulic fluid badly and I’m thinking I need to change the orings in them. My question is if it’s possible to do without removing the valve from the machine. I’ve never taken one apart before. I can acces the front and back somewhat. Thanks

 

[Tinkerer]

Separate the backhoe from the tractor and remove the valve. It is easier than being a contortionist and doing it on the machine.
Reseal all of the spools now so you don't have to do it again when the others start to leak.
Get a lot of colored zip ties and use them to keep the hose locations where they belong.

 

[Coy Lancaster]

Is this the loader valve or the backhoe valve?

 

[Scott b]

Sorry, for not clarifying. It is the loader valve.

 

[Coy Lancaster]

You can remove the spools from the valve while it’s on the machine but it’s easier if you remove it.

 

[Scott b]

It’s the loader valve

 

[Scott b]

Ok, thanks. That’s what I thought may be the case. I have the parts diagram but unsure of the disassembly process of removing the spools. It looks like maybe they unscrew from the back. Does that sound right?

 

[Scott b]

 

[Scott b]

This is the same one I found online.

 

[Coy Lancaster]

Yeah should just take spring housings off and remove spools. They both have detents so remove spool with housings.

 

[Scott b]

Ok, thanks. Guess I gotta start trying to get all the hydraulic lines off.

 

[Scott b]

 

[Scott b]

Looking at it more, I think if I take the air tank off I could get these out much easier than all those hydraulic lines. Does that make sense?