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Hydraulic fluid rates
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thendrix View Drop Down
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Joined: 04 Feb 2013
Location: Fairmount GA
Points: 5088 		Post Options Post Options   Thanks (0) Thanks(0)   Quote thendrix Quote  Post ReplyReply Direct Link To This Post Topic: Hydraulic fluid rates
    Posted: 10 May 2019 at 3:53pm
School me on for rates please. Got a Kubota L4310 and need to add a 3rd function to the loader. Looked into a new joystick valve with a grapple function but there's not enough room to mount it. Now I'm looking at a multiplier. The tractor hydraulic pump flows 7.8 GPM. The multiplier comes in 6gpm or 15gpm but there's a pretty significant price difference. Now correct me if I'm wrong but if I went with the 6gpm multiplier, the hydraulics would be a little slower but it shouldn't hurt anything in the multiplier correct? I need the third function for a bale grapple and for me I'm ok with the hydraulics being a little slower as long as it works

Edited by thendrix - 10 May 2019 at 3:55pm
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im4racin View Drop Down
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Joined: 12 Jun 2017
Location: Garrison ND
Points: 1055 		Post Options Post Options   Thanks (0) Thanks(0)   Quote im4racin Quote  Post ReplyReply Direct Link To This Post Posted: 10 May 2019 at 5:22pm
That will be 7.8 gpm at rated engine speed. How often are you going to use the functions that use the valve when at rated speed?
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thendrix View Drop Down
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Joined: 04 Feb 2013
Location: Fairmount GA
Points: 5088 		Post Options Post Options   Thanks (0) Thanks(0)   Quote thendrix Quote  Post ReplyReply Direct Link To This Post Posted: 10 May 2019 at 7:36pm
Never at rated speed. Probably half rated speed maybe a little more. So I'm guessing what you're saying is 8gpm at half rated speed would be 4gpm?
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Joined: 12 Jun 2017
Location: Garrison ND
Points: 1055 		Post Options Post Options   Thanks (0) Thanks(0)   Quote im4racin Quote  Post ReplyReply Direct Link To This Post Posted: 10 May 2019 at 9:23pm
Somewhere in there. You should be safe and the way you would plumb it in it should be protected by the relief in the main valve for the short time you would be using it
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thendrix View Drop Down
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Joined: 04 Feb 2013
Location: Fairmount GA
Points: 5088 		Post Options Post Options   Thanks (0) Thanks(0)   Quote thendrix Quote  Post ReplyReply Direct Link To This Post Posted: 11 May 2019 at 6:48am
Ok thanks
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Coke-in-MN View Drop Down
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Joined: 12 Sep 2009
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Points: 41980 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Coke-in-MN Quote  Post ReplyReply Direct Link To This Post Posted: 11 May 2019 at 2:03pm
Son uses a electric valve as a diverter valve in one of the function valves now on tractors to run aux function . 
 Seems many units (skid loaders) do not have the 3rd valve for a grapple function so split the bucket tilt supply to open and close grapple . Uses it on utility trctors also when people do not want to buy a 3rd valve add on
Life lesson: If you’re being chased by a lion, you’re on a horse, to the left of you is a giraffe and on the right is a unicorn, what do you do? You stop drinking and get off the carousel.
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Joined: 19 May 2010
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Points: 917 		Post Options Post Options   Thanks (0) Thanks(0)   Quote GARY(OH/IN) Quote  Post ReplyReply Direct Link To This Post Posted: 12 May 2019 at 1:35am
I have a headache! Can I leave school early?
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thendrix View Drop Down
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Joined: 04 Feb 2013
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Points: 5088 		Post Options Post Options   Thanks (0) Thanks(0)   Quote thendrix Quote  Post ReplyReply Direct Link To This Post Posted: 12 May 2019 at 7:24am
Originally posted by Coke-in-MN Coke-in-MN wrote:

Son uses a electric valve as a diverter valve in one of the function valves now on tractors to run aux function . 
 Seems many units (skid loaders) do not have the 3rd valve for a grapple function so split the bucket tilt supply to open and close grapple . Uses it on utility trctors also when people do not want to buy a 3rd valve add on


That's the route I'm going to. Just have to find a place to mount the block where it won't be in the way
"Farming is a business that makes a Las Vegas craps table look like a regular paycheck" Ronald Reagan
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