Shaver post pounder

[THEPARTYHOUND]

I recently bought a shaver post pounder and it has a 550 valve (open center). The tractor im using it on is an older john deere with a closed center hydraulic system. I was told the open center pounder would work, but when i push the handle, nothing happens. The ram on the pounder doesnt even begin to budge. Any thoughts on this?
If i were to have to put a new valve on this pounder what kind of valve would i be looking for? I called Shaver and was quoted 2500 for one of their valves! This is an old used pounder that will not see much use...theres got to be a $100 solution out there!

 

[kennyd]

If the tractor is a CC system (what model is it?) then you need a CC valve, it's just that simple. Some valves can be converted, I'm not sure if Shaver uses a proprietary valve or not. Can you post pics and any numbers on it?

 

[THEPARTYHOUND]

The tractor is a 2240. The only casting marks on the pounder valve is "550".

Would this work?

 

[THEPARTYHOUND]

....Or maybe this one? This one does say it can be converted to closed center, but is it the right type of valve to just dump all that fluid for dropping the pounder?

 

[LouNY]

Are you plugging into one of your existing remotes to feed the valve on the post driver?
If so have you held your remote on and tried using your pounders valve?
If you are looping from your closed center valve thru an open center the open center should be fed flow
with your valve activated ( may have to use a bungee cord or rope to hold your valve open ).

 

[THEPARTYHOUND]

Are you plugging into one of your existing remotes to feed the valve on the post driver?
If so have you held your remote on and tried using your pounders valve?
If you are looping from your closed center valve thru an open center the open center should be fed flow
with your valve activated ( may have to use a bungee cord or rope to hold your valve open ).

Yes, i have had the remote on my tractor open and tried to open the valve on the pounder. Nothing... Fluid just flows through. Into a bucket at first to flush the pounder out then into the fill port on the tractor. The cylinder did not move. Could trapped air cause this?
I did notice , after i bought it, that 3 screws are missing from the valve...like someone had worked on the valve in the past. That was what made me suspect that something was wrong with the valve.

 

[LouNY]

So when you activate your tractor valve you are getting fluid thru the pounder valve and returning to the tractor?
So the feed is coming in the pressure port and leaving to return from the valve tank port?
If so when you activate the pounders valve it should interrupt the return flow and operate the pounder.

 

[THEPARTYHOUND]

So when you activate your tractor valve you are getting fluid thru the pounder valve and returning to the tractor?
So the feed is coming in the pressure port and leaving to return from the valve tank port?
If so when you activate the pounders valve it should interrupt the return flow and operate the pounder.

Yes, fluid is flowing through the valve back into my tractor.

I agree, it should. I sure wish it did too! If it did, i wouldnt be on here trying to figure out what kind of valve i need!
One other thing i noticed is that when i operated the valve on the pounder the PTO started turning on the tractor?!?

 

[LouNY]

Was the pounder all plumbed up with two quick connects?
Is it possible that the pressure feed and returns are switched?
Or a bad valve from Shaver

 

[THEPARTYHOUND]

The pounder was plumbed with 1 quick connect on a high pressure hose and one larger 1" non-high pressure return hose.
I dont know if the valve was bad from shaver, but 30 some years of use could have caused it to go bad?