Winches Hydraulic Winch question

[woodlandfarms]

I think Peter just brought this up, and it has interested me as there is another conversation about NOT using electrical winches with tractors...

So, how do you reduce 18GPM and 3000PSI to 3GPM and 1500PSI? I would think the best way to hook up a winch would be through the PTO, letting it bypass for the most part and alllow some to go the the winch.

It is really just a novice Hydarulics question. Wondering how one would plumb in such a system...

Carl

 

[J_J]

I think Peter just brought this up, and it has interested me as there is another conversation about NOT using electrical winches with tractors...

So, how do you reduce 18GPM and 3000PSI to 3GPM and 1500PSI? I would think the best way to hook up a winch would be through the PTO, letting it bypass for the most part and alllow some to go the the winch.

It is really just a novice Hydarulics question. Wondering how one would plumb in such a system...

Carl

To reduce the 18 gpm's down to 3 gpm's, just insert a restricter in line with the motor. It looks like a washer with a small hole. As far as reducing the pressure, a relief valve set at 1500 psi would relieve the pressure at 1500 psi, and send the excess back to tank.

 

[Rip]

Carl, I have rigged up a Warn Series 6 industrial hydraulic winch for my 1845 with just a simple motor spool valve running off the PTO (motor) circuit. The series 6 (6000 lb) and series 9 (9000 lbs) are both rated for 15 gpm and around 2500 psi. No additional flow restrictors or releif valves needed.

I think the 3 gpm & 1500 psi numbers you refer to may be for a MileMarker hyd winch that is designed to run off a power steering pump.

Go with a Warn, Ramsy or Dayton industrial type winch and you should have no problems. Not cheap or often discounted, but will work at full rating all day and still be pulling 20 years from now.

I run 150 ft of 1/4" high strength cable (plus a 50 ft extention sometimes) on my 6000 lb Warn to skid big beetle-killed Pondarosa trees up from places I can not get the tractor. If the log hangs up it will even try to skid the tractor with all wheels locked by the BrakeTender. Winch will stall before breaking anything.

Probably skidded 100 trees.....no problems at all. I run the engine at mid-throttle and turn on the PTO switch....I then have full control of the winch speed and direction with the spool valve. Also has a free-wheeling clutch to pull cable out.

Rip

 

[woodlandfarms]

Cool! I was indeed looking at the milemarker brand.. Will do some research.

Carl

 

[Rip]

The hydraulic MileMarker winches are the only ones I would consider for a 4x4 PU or other vehicle that wants a winch for serious use rather than just-in-case or just to look good. They have been designed to work off the limited hydraulic supply of a power steering pump, and actually work quite well (military uses them on HumVees). They are not a good choice for tractors with higher hyd capabilities however.

About the only situation where a 4x4 may be better off with an electric winch would be a stream crossing where engine died and one only needed to be pulled 15 ft or so. Otherwise batt will die as well.

 

[woodlandfarms]

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)

 

[Rip]

Depending on what you actually intend to use it for, that Series 12 may be serious overkill, but is the type I was talking about. New that would be around $1200 to $1500.

But, hey...if the $$ is right?

 

[Barryh]

Depending on what you actually intend to use it for, that Series 12 may be serious overkill, but is the type I was talking about. New that would be around $1200 to $1500.

But, hey...if the $$ is right?

I can hear the loud laughter in the background from here, but this is the winch I'll be buying for my occasional use around here for the PT of course. If for no other reason, it has my curiosity. I've bought things from Chicago Electric before and was plesanty surprised at how well they worked and held up.

I figure if it burns up or does not pull a load, or the braking does not hold. Then for $50.00 it might make a good paper weight. What the hey

Harbor Freight Tools - Quality Tools at the Lowest Prices

 

[Rip]

I buy more than my share of "stuff" from Harbor Freight also, and have been satisfied often enough to keep going back. For occasional light use that little unit may well work for you. Not sure I would put much faith in that 2000 lb rating however.

Good Luck

 

[Barryh]

I buy more than my share of "stuff" from Harbor Freight also, and have been satisfied often enough to keep going back. For occasional light use that little unit may well work for you. Not sure I would put much faith in that 2000 lb rating however.

Good Luck

If I can skid a tree or two, might be fun. If not I can always buy a better one. Trees come down around here small and large. I of course can pick them up with my PT, but every once in a while they are across a fence line or at an awkward angle. Figure I can use it to skid them out to where I can get to them. So I'm not crawling around back in ravines and getting flat tires.

 

[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.