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Implement Alley Discussion Forum

Hydraulics for 3 pt. hitch rear blade

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Tomas

05-03-2004 15:36:13




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Here goes my ignorance again, but I have a LandPride 7' blade and a JD 5420 tractor with 4 remote hydraulic valves on the rear. I want to be able to control the horizonal and vertical tilt of the blade from the cab. Do I need one or two way cylinders for this? In the cab, there are two levers which go forward and back. Please put me out of my misery and tell me the BEST way to hook this system up to do what I seek. Many thanks!

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JMS/MN

05-03-2004 18:26:24




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 Re: Hydraulics for 3 pt. hitch rear blade in reply to Tomas, 05-03-2004 15:36:13  
Whether you bought it from a dealer or a private individual- he should have explained how the remote hydraulic couplers work. You say you have 4 valves,but two levers. You do not have four valves, you have two remote coupler systems. Each one can control one cylinder- either one-way or two-way, depending if you use one or two of the outlets of each pair. I don't recognize your tractor model, but on the JD field tractors, the remotes have two couplers in one cast iron unit- and are controlled by one cab lever. Like the other poster said- those two couplers are horizontal to one another. If you want power up and power down, or power left and power right, you need to use two-way cylinders. One way cylinders are for power up, gravity down. Then the weight of the implement provides the gravity down.

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phddan

05-03-2004 16:38:26




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 Re: Hydraulics for 3 pt. hitch rear blade in reply to Tomas, 05-03-2004 15:36:13  
funny you should post this. 3 hrs ago i was pricingthe very same blade. what you need to do is go to the local tractor parts place and get somecaps that go on the ends of the hoses and hose connections on tractor. they are color coded, so get 4 different colors.
at first it is trial and error to get the valves to work the way you want them to.
the connections on the back of your tractor are paired horizontally. top pair are probably the right remote handle, and the bottom pair are probably the left. take the hoses from either the tilt or the horizontol cylinder and hook it to the bootom set of connections on the tractor. do the same with the other cylinder to the top pair.
its easier to go from the bottom up.
now start tractor and work one cylinder at a time.
and see if this is the way you want that handle to work that remote, ie.. pull the handle, blade moves up or down. if it feels backwards to you, swap that cylinders hoses. once you get both hooked up the way you want, then put those colored covers on them, they hang out of the way when the hoses are attached, and your done. and the next time you hook it up it will be the same controlwise.
have fun, and good luck
phddan

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Tomas

05-04-2004 04:43:27




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 Re: Re: Hydraulics for 3 pt. hitch rear blade in reply to phddan, 05-03-2004 16:38:26  
Well, as usual, I have been spoon fed all the info. I need to understand how to proceed with this project. I know the terminology of the remotes and what type cylinders I need. MANY THANKS to all. Tom



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tomas

05-03-2004 17:04:34




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 Re: Re: Hydraulics for 3 pt. hitch rear blade in reply to phddan, 05-03-2004 16:38:26  
Thanks, phdan. Now if I can get some info on whether or not I need two way or one way cylinders. Also, what diameter rods are needed for heavy blading? I'm on a roll.



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paul

05-03-2004 19:59:25




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 Re: Re: Re: Hydraulics for 3 pt. hitch rear blade in reply to tomas, 05-03-2004 17:04:34  
You mean the size of the cylinder (or inner plunger) which are often 3" to do most jobs. Two inches is kinda light for some jobs, and 4" is kinda slow & big but would work. The rod itself is probably designed to handle the load, but you could get something larger for more money.

Double acting.

--->Paul



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phddan

05-03-2004 19:32:21




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 Re: Re: Re: Hydraulics for 3 pt. hitch rear blade in reply to tomas, 05-03-2004 17:04:34  
the blade comes with two way cyl's.
not quite sure what "rods" you are referring to.



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