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Allis Chalmers Discussion Forum

4 spool valve?

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01-06-2008 10:54:25

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I believe I will buy a 4 spool valve and then I could add a loader later if need be. I found one that the following specs:
Main pressure 2537
24 gpm max flow

1 2320 pressure, single acting
2 1812 single 3 1450 double acting
4 1667 double acting

Would this valve work okay on the D-17? Thanks.

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01-06-2008 12:31:42

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 Re: 4 spool valve? in reply to Smith1000, 01-06-2008 10:54:25  
Internal pressure on the D17 would be over 3000 psi, so you"d want a valve that handles that much for running an AC cylinder.It can have a pressure relief valve that dumps excess down to under 2000psi for common cylinders. Be aware that the low volume of flow does not increase with those lower psi valves, so cylinders will act slowly. I think 4 additional valves would be overkill- need only two for a loader. Yes, the return line is the one that screws into the left side of the housing. I think I t"eed into that at the transport valve when I added the additional valve. For future use of a loader, I"d add a low pressure front-mount pump and reservoir instead of a stack at the rear. FYI- when plugging into the remote to run another valve, you need to lock the Lift Lever so that the pump runs all the time. Front pulley should be tapped for a front pump- makes for a simpler setup and gives you INDEPENDENT hydraulics.

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01-06-2008 15:12:30

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 Re: 4 spool valve? in reply to JMS/.MN, 01-06-2008 12:31:42  
I see what you mean. With a low pressure pump up front, the hydraulic speed should be faster too. Thanks for the advice. The valves I am looking at will handle up to 3,500 (I believe it said)and the excess bleeds off.

I guess I'll have to live with the slow speed. I need it to open and close the gate on a round baler. Also, it would be nice for splitting wood. I hope the speed is not too slow.

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