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Allis Chalmers D14

D

doug72

New User
I was wondering if someone could help me out. I have a Allis chalmers d14 with a newly rebuilt engine in it. It should be around 40 h.p., what size disk could I pull with it? And how do the auxillary hydraulics work? There is only one hookup, and I was curious as to how I use that. I was also wondering what implements that would operate. I helped bale hay when I was a kid but never helped plow or disk and I am plannig on doing some small scale farming. Any help would be greatly appreciated. Thank You

Doug
 
i pull a 7 foot it probably will pull 8 foot if you dont sink it to deep 3 14 allis mounted plow it will run a haybine and baler not a power house
 
The D14 should pull a 8 to 10 foot disk, depending on conditions. The hydraulics are setup one way, meaning power up, gravity down. You wont be able to raise the wheels of disk off the ground.
 
Others have answered the disc question. Hydraulics on the D-14, uses a 3500 PSI, about 4 GPM system. that means get a Allis Cylinder, or go to surpluscenter.com, and get one that is rated to 3500 psi. If you use a standard cylinder, you will eventually blow the seals out of it. It is a one-way remote setup, so the hose goes to the up side of the cylinder, and a vent goes on the other hose hole in the cylinder. Power up, gravity down. You can plumb another line into the tranny, to return fluid, but this pump is one way (up) only. Lift lever is where your turn signal is on a car. Traction booster lever is the notched one, in the same spot, it is a draught control system, that detects wheel slippage, via a linkage, to a big spring, connected to the snap coupler bell. Factory 3 point will connect to this same spring. Some aftermarket conversions do not take this into account, so be careful of them.
 
You can plug a two-way valve into the remote outlet, and get power up and down, but you need the oil return line back to the transmission. Operating it, you would need to hold the integral handle to provide oil to the extra valve- not the handiest, but it does work. Did that on my D17 for occasional use, like running the rock wagon. Could also add a crankshaft driven pump for true independent hydraulics, any capacity and pressure.
 
.

Actually AC use to offer another option, a pressure reducing valve that allowed the use of regular cylinders on this high pressure system. Years ago I use to have one of these valves on a WD.

Since it is a high pressure low volume system a 3” cylinder operates slowly but it does operate at the reduced pressure set by the accessory valve, this allows you to use the implement without changing the cylinder.

I don’t know if the valves are still available but it is another option you could consider.
 
The valve I added has a pressure relief valve, set for about 1500 psi- works fine. Just a common, off the shelf valve, I think a Gresen.
 
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