Shaver post pounder
- Thread starter THEPARTYHOUND
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THEPARTYHOUND
Gold Member
No Beez, i wish there was a travel pin of some kind. Ive got a ratchet strap acting as my travel pin! I may have to rig up some kind of travel pin if i get this working though.
I'm not sure I understand the configuration given the description of the flushing behavior. There is a remote valve on the tractor that is connected to the high pressure inlet of the shaver valve. There is a high pressure line from the outlet of the shaver valve connected to the single acting hydraulic cylinder. And there is a large diameter low pressure line coming out of the shaver valve going to the hydraulic fill port on your tractor. There are three positions the shaver valve can be in: neutral, extend the cylinder, and allow the cylinder to retract under the force of the ram. Can you describe what you mean when you say you've "tried to open the valve on the pounder". Do you mean you tried to move the actuator on the shaver valve to the position that should extend the cylinder and nothing happened? Or do you mean the actuator moved but the cylinder did not extend? When the fluid is flowing into the shaver valve and out into the flush bucket, which position is the shaver valve actuator in: extend or retract? I'm trying to understand how fluid can be flowing through the valve if the cylinder isn't retracting, because that's the only place the fluid can come from unless there's a total failure of the shaver valve that's allowing the inlet high pressure fluid to go directly out the low pressure line back to the tank.
I guess here's what I'd do next. I'd disconnect the hose at the cylinder, stick the end of the hose in a 5gal bucket with a towel over the top to keep from getting sprayed, and crack the shaver valve open really quick to see if you get a jet spray of hydraulic fluid out the end of the hose. If you do, assume the valve is working and check the ram. Put a floor jack or bottle jack under the sliding part of the ram and try to lift it. It should go up easily from the lowered position because the springs are just starting to stretch so it's just the weight of the ram you're lifting.
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THEPARTYHOUND
Gold Member
That is correct. With the high pressure line from the pounder hooked up to the tractor's remote hydraulics and the pounder valve in the neutral position fluid flows freely out of the discharge hose. I thought this was normal operation for open center hydraulic valves.
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THEPARTYHOUND
Gold Member
FWIW, there are no springs on this pounder. It is only gravity and weight that does the pounding.
I will do as you suggest. That makes sense to me...
I will do as you suggest. That makes sense to me...
Yes that's normal operation. Your earlier post made it clear you were flushing in neutral position, I should have read more carefully.
You're lucky you don't have springs. I've had 3 break and they're no fun to change.
Birdhunter1
Veteran Member
What I did was to hold the valve in up mode and let the air/oil mix itself out. Eventually the ram raised, it went alittle bit, then fell slightly, then raised some more, then some more, then no problem at all. I would be willing to bet if this does not work your ram is stuck or you aren't getting oil to it.
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THEPARTYHOUND
Gold Member
Ok, i pulled the high pressure line off at the cylinder. When i push the hydraulic valve fluid does come out of the now removed hose, but just a little bit. And if i hold my finger over the hose and push the lever i can hold the pressure back.