Winches Hydraulic Winch question

[KentT]

How about this bad boy?

It is right down the street from me...

eBay Motors: Warm Series 12 Hydraulic Industrial/ATV Winch - Used-PU (item 270163390592 end time Sep-13-07 19:16:22 PDT)

If that were close to me, I'd jump all over it at that price. Instead, I'm still looking at getting a MileMarker... haven't made the leap yet, since there's still higher priority items on the list.

I figure if I run my PT-425 at about 1/2 throttle or less, the 8gpm/2500 PSI PTO should be about right for the MileMarker's 3gpm/1500 PSI limits...

If you get that one, I'd try to figure out how to mount a roller fairlead -- you'd come to appreciate it...

 

[MossRoad]

I called Mile Marker several years ago and they said they thought it would work with the PT425 specs. If I were going to get a winch, I'd call them again and ask to talk to someone in the technical department and see if they have any concerns with the 8GPM and 2500 PSI.

 

[J_J]

I called Mile Marker several years ago and they said they thought it would work with the PT425 specs. If I were going to get a winch, I'd call them again and ask to talk to someone in the technical department and see if they have any concerns with the 8GPM and 2500 PSI.

David, Read post # 2 above. There should be no concern, it is an easy fix.

 

[MossRoad]

David, Read post # 2 above. There should be no concern, it is an easy fix.

Yeah, I read that. I understand about a restrictor to reduce flow. But I'm having a tough time with the relief valve part. I understand how a relief valve works, but I thought is was bad practice to overwork them. I suppose if you put a guage in the line and idled up the engine to 1500PSI on the guage, it would be O.K., but would you really see the 1500PSI if there was no load on the circuit? Would the PSI increase as the load increased on the winch?

 

[J_J]

Yeah, I read that. I understand about a restrictor to reduce flow. But I'm having a tough time with the relief valve part. I understand how a relief valve works, but I thought is was bad practice to overwork them. I suppose if you put a guage in the line and idled up the engine to 1500PSI on the guage, it would be O.K., but would you really see the 1500PSI if there was no load on the circuit? Would the PSI increase as the load increased on the winch?

You would only see pressure when the winch was operating, and it would depend on the load as to the pressure that you will see. In order to see or measure pressure, there has to be some resistance to the fluid. The picture below is an in line adj relief valve. If a gage were placed at the valve, you would see what ever pressure that you set as the relief pressure. The poppet valve would raise off the seat at say 1500 psi, and keep the pressure constant for the winch to work, and any excess pressure would go back to tank. When the winch is turned off, the pressure would drop. The winch could probably take more pressure, but they usually state the safe pressure in order to give some longivity to the product.

 

[MossRoad]

Thanks, J_J.