Equineguy05
New member
Greetings!
Case 580C backhoe valve control spool.
Im a first time spool 're-O-ringer' and I may have done some damage. I completed all the O-ring changes on the internal parts of the boom and dipper spools, and the last thing was to change the wiper and o-ring under it. The diagram showed them next to each other, I plucked out the 0-ring without issue, but the wiper was pressed in there good ( or so I thought ). I bent a screw driver, a brake tool, and was proud enough to grind down a hammer to make a pry tool to get under that wiper. This was getting crazy - I have never met a seal that would not come out with a good screw driver.
Well.... the modified hammer worked, but the results were not what I expected. Looking at the expelled wiper, and the broken cast ridge under it - my heart sunk, and I no longer felt like a MacGyver. Several words came to mind and all I can hear is the echoing words of advise from the Case service guy when I picked up o-rings, "... make sure you put the spools back in the holes they came out of, if you dont... it may fail and you will have to replace the whole valve - which will be a hard part to find". The other one I was able to get out with much more ease now knowing the anatomy of it. ( without damage )
So now looking at the dipper spool hole, the casted ridge the sits between the o-ring and the wiper, has a chunk missing out if it.
Is this going to cause a leak issue? Am I looking at replacing the whole thing? Is this something I can weld a few beads on and then grind it back to near original with a dremel? ( it looks like cast metal, not sure how successful that would be ). Or will this just be an OK thing and learn from it, and never do it again.
I have a pic showing my not so great art work.....
Thanks in advance.
Case 580C backhoe valve control spool.
Im a first time spool 're-O-ringer' and I may have done some damage. I completed all the O-ring changes on the internal parts of the boom and dipper spools, and the last thing was to change the wiper and o-ring under it. The diagram showed them next to each other, I plucked out the 0-ring without issue, but the wiper was pressed in there good ( or so I thought ). I bent a screw driver, a brake tool, and was proud enough to grind down a hammer to make a pry tool to get under that wiper. This was getting crazy - I have never met a seal that would not come out with a good screw driver.
Well.... the modified hammer worked, but the results were not what I expected. Looking at the expelled wiper, and the broken cast ridge under it - my heart sunk, and I no longer felt like a MacGyver. Several words came to mind and all I can hear is the echoing words of advise from the Case service guy when I picked up o-rings, "... make sure you put the spools back in the holes they came out of, if you dont... it may fail and you will have to replace the whole valve - which will be a hard part to find". The other one I was able to get out with much more ease now knowing the anatomy of it. ( without damage )
So now looking at the dipper spool hole, the casted ridge the sits between the o-ring and the wiper, has a chunk missing out if it.
Is this going to cause a leak issue? Am I looking at replacing the whole thing? Is this something I can weld a few beads on and then grind it back to near original with a dremel? ( it looks like cast metal, not sure how successful that would be ). Or will this just be an OK thing and learn from it, and never do it again.
I have a pic showing my not so great art work.....
Thanks in advance.