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WD 45 Hydraulics

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Dennis

11-14-2002 16:34:22




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I want to put a loader on my WD 45. I need to add a 3 spool hydraulic valve to handle the loader and also give me a rear hydraulic outlet for a haybine, etc. I would like to leave the existing valve that raises the rear lift in place. Firstly, is the factory hydraulic pump big enough to handle all of the above? If so, how do I replumb the pump to go directly from the pump to my new 3 spool valve and then via power beyond back to the existing valve that controls the lift?
Or should I be looking at installing another pump for my 3 spool valve? Where to put it would be a problem. IH sticks a hydraulic pump in the distributor drive line. I don't know if that is feasible on the Allis. I will welcome your input!

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Dan and cory

11-20-2002 19:11:25




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 Re: WD 45 Hydraulics in reply to Dennis, 11-14-2002 16:34:22  
If you have a trip bucket its easy. Use the female coupler on the tractor, run hose fron the cylinders to a ball valve. From the ball valve adapt it to a male fitting. Then just hook it up when you need the loader, if you dont close the valve and unhook it will hold the loader up and you can use your hydraulics as normal. We did this years ago it works great!



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Dave Grubb

11-15-2002 06:09:08




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 Re: WD 45 Hydraulics in reply to Dennis, 11-14-2002 16:34:22  
The first thing you need to install is the factory remote outlet that went from the pump to a female quick coupler under the seat. You could probably gather the items up from a salvage yard or two. The next item to get is the 4 way valve AC offered to use on the D series prior to the D17 series 4. You can get the valve on this site. Click on the 'parts' word, click on Allis Chalmers, click on hydraulic system, it is th valve shown. The next thing is to plumb a return line into the bottom of the reservoir case by removing the drain plug and fashion from there. You could tee in an extra hydraulic reservoir at this point but don't get its full level above the full level of the tractor resevoir. If you did not need a lot of extra fluid capacity you could use oversized return lines and let them be the 'reservoir'. In any event the original AC system was 3500 psi and you can blow a light weight cylinder. I setup a 4 way valve using Prince components from the Northern Tool folks. The inlet section of the valve is a pressure reducing section.

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Dennis

11-15-2002 16:41:44




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 Re: Re: WD 45 Hydraulics in reply to Dave Grubb, 11-15-2002 06:09:08  
Thanks Dave. You gave me a lot of good suggestions. I may come back at you later as I get further into the project!

Dennis



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Dave( Ontario)

11-14-2002 20:23:18




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 Re: WD 45 Hydraulics in reply to Dennis, 11-14-2002 16:34:22  
Hi Dennis, Can't answer all your questions. But here is a little info. Yes the pump will handle a loader. However the rams must not excede 40 cu. in. It has a high pressure low volume pump. It has a 6 quart capacity. I am reasonably certain that you have to split the two systems so that they will operate independently..Hope this is of some help. Dave.



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Jim E

11-14-2002 19:49:47




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 Re: WD 45 Hydraulics in reply to Dennis, 11-14-2002 16:34:22  
I can't answer your questions like you need them answered but I do know AC uses a high pressure hydraulic system whereas most other brands use high volume. So if you don't get an AC loader you must make sure you have high pressure cylinders. My WD-45 has a hydraulic outlet next to the seat mount. I wonder if yours was removed at some time?



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Tom

11-15-2002 16:10:50




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 Re: Re: WD 45 Hydraulics in reply to Jim E, 11-14-2002 19:49:47  
Another option, which I recommend because it gives you live hydraulics, is to install a 10gpm pump on the crankshaft. You will need to also add a reservior to handle the volume. This will efficently operate your loader and provide the capability for double acting cylinders for your loader arms and the bucket, and it will allow you to maintain the integrity of the tractor hydraulics to operate the lift arms, etc. I don't believe you will be satisfied using the tractor hydraulics for a loader. They are to slow and you have to use the hand clutch at the same time you need your hands to steer and operate the spool valves. My $ .02. Tom

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Dennis

11-15-2002 16:56:12




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 Re: Re: Re: WD 45 Hydraulics in reply to Tom, 11-15-2002 16:10:50  
Tom,

Your suggestion to add another pump and leave the existing system alone is kind of the way I was leaning. How do I drive another pump off of the crankshaft? There is not much room in the area surrounding the front pulley plus my experience with driving hydraulic pumps with V belts has not been very good! I already want to add power steering to the tractor which will require a pump probably above the generator.

Dennis

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Tom

11-18-2002 03:11:40




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 Re: Re: Re: Re: WD 45 Hydraulics in reply to Dennis, 11-15-2002 16:56:12  
Dennis, My WD45 has factory power steering which means it has a two-sheave crankshaft pulley. Even with this larger pulley there was room to facile adding the pump. This was done by removing the pulley and welding the pump coupler on to it. You will have to remove the shaft for the hand crank that runs through the steering pedestal to provide room for the pump. I have a Kelley Loader on my 45 and I obtained the pump, coupler, mounting bracket, and two-spool valve from them. I recommend that you obtain a spool valve that has a float position. They also have a reservoir that attaches to the loader. I am extremely happy with this system. I changed from a M&W pump driven off of the distributor gear to the crankshaft mount because I kept breaking the distributor drive gear. The gear was not made for the load and shock produced by operating hydraulics, etc. If you are not comfortable welding the coupler to the pulley, take it to a machine shop that has a laser for finding the exact center of the two. To facilitate installing this setup, you may have to temporary slide the steering pedestal forward. It is a lot of work, but I believe you will be satisfied with its operation. Yes, it does compromise the integrity of the tractor, but the additional utility that is gained more than makes up for it. Keep us posted. The number for Kelley Manufacturing is 274-255-4746 and ask for Tony. Tom

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JMS/MN

11-16-2002 06:53:48




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 Re: Re: Re: Re: WD 45 Hydraulics in reply to Dennis, 11-15-2002 16:56:12  
If you install a cranshaft driven pump it can operate your loader and power steering. It mounts ahead of the front engine support- on another cross angle iron bracket. Can be coupled with a lovejoy or chain coupler. The rear half mounts on a stubshaft welded and machined to the centerline of the pulley. Some D17s had a front pulley with a mounting for a front shaft- check if they fit the crankshaft. Match your new pump to the pressure required for your existing loader cylinders. I reversed a WD loader years ago, and gained room ahead of the engine by adding c-channel to the frame, moving the steering pedestal forward, lining up the rear pedestal bolt holes with the front c-channel holes, and drilling new holes for the front pedestal bolts. Radiator stays in the original place, but front extension gives about 8 inches more space for the pump, etc. Much easier to work on now.

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