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Case Tractors Discussion Forum
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Case 2470 Hydraulics, need float position

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Mike S 806/H

12-16-2006 12:47:21




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Is there a way to have the hydraulic valve on a 2470 to have a float position? I need float for a snow plow,




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JoeBob/IN

12-17-2006 07:11:17




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 Re: Case 2470 Hydraulics, need float position in reply to Mike S 806/H, 12-16-2006 12:47:21  
I thought all the 70 series had a float position already. I think all the way forward and it should lock in unless wore out, which is possible on a tractor of that age.



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dwag

12-17-2006 04:52:59




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 Re: Case 2470 Hydraulics, need float position in reply to Mike S 806/H, 12-16-2006 12:47:21  
You would have to use a 1 way cyl on plow and return oil from unused remote coupler (the other coupler normally used with 2 way cyl) to sump.This will allow you to run with blade down while remote lever is held engaged, circulating oil, while not bypassing over relief valve and allowing plow to float.



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Mike S 806/H

12-17-2006 08:48:05




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 Re: Case 2470 Hydraulics, need float position in reply to dwag, 12-17-2006 04:52:59  
Hi, dawg, I have two ,two way cylinders mounted on the front to lift the plow, I would like to have down pressure just in case I need to scrape up some hard pack snow or ice, I probley have to mount a new hydraulic valve to do this, maybe from a 4690?



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dwag

12-17-2006 16:21:12




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 Re: Case 2470 Hydraulics, need float position in reply to Mike S 806/H, 12-17-2006 08:48:05  
90 series valve will not work for you as they were closed center hyd"s. Easiest way is to get a 4690, or move to New Mexico and let someone else push snow.LOL



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Mike S 806/H

12-18-2006 10:35:08




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 Re: Case 2470 Hydraulics, need float position in reply to dwag, 12-17-2006 16:21:12  
I probley wont get a 4690 anytime soon, I think I going to buy a new prince valve, hook it up to the hydraulic outlets of one valve and tap into a return line, this way I would have to keep the tractors original valve open one way all the time and use the prince valve to operate the plow, Thanks dwag for the info, hey you know much about the injection pumps on these tractors? my engine likes to surge around half throttle, under load it clears up,

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dwag

12-18-2006 17:17:10




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 Re: Case 2470 Hydraulics, need float position in reply to Mike S 806/H, 12-18-2006 10:35:08  
Warm up eng, unhook throttle cable, back off lever stop to 700 rpm(small cap\screw on back of pump) screw in larger adj screw to 750 rpm,(large adj screw on back of pump) turn in small screw to 800 rpm. Sometimes this adj works. Make sure stops at throttle lever in console are adjusted to take stress off throttle lever on pump.



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