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  1. #21
    Gold Member farmall 55a case's Avatar
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    Oct 2011
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    case ih farmall 55a

    Default

    Quote Originally Posted by Chickengrower View Post
    Hey guys while we r kinda on the subject, would a diverter valve have enough flow to run a hyd. post hole auger? Or is that where the true third function is better? Or would either be just fine?
    That is a good question surely someone knows?

  2. #22
    Bronze Member scobrado's Avatar
    Join Date
    Dec 2012
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    81
    Location
    Wilsonville, Ore. USA
    Tractor
    John Deere 3038E

    Default Re: third function.

    Quote Originally Posted by J_J View Post
    Some people are not handy or knowledgeable and want someone to make up a kit exactly for their tractor, and if they want to spend that kind of money, then so be it.

    I just can not see the money in the kits.
    I added rear hydraulics with the JD kit for my tractor specifically because I'm not up to speed on hydraulics. I'm still a hydro newbie, but I've been reading the Vickers Hydraulics manual and looking forward to the next project.

    I would like to use the rear controls for top 'n' tilt and add a 3rd function for a grapple. I would love to save some $ and buy parts, rather than a 3rd function kit. Anyone know of a parts list, DIY blogs, etc. for adding a 3rd function from parts rather than a kit?
    John Deere 3038E/305 FEL/Frontier RB5060 rear blade/Frontier RC2060 rotary cutter/Harbor Freight quick hitch/Titan clamp-on forks/Priefert single bottom plow/Priefert 16x16 disc plow/Priefert 6' landscape rake/Taylor Pittsburgh Carry All/Land Pride BB1572 box blade/Fimco 40 gal. 3 point sprayer/Rankin subsoiler/Bearcat chipper-shredder/, more to come ...

  3. #23
    Platinum Member
    Join Date
    Oct 2010
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    665
    Location
    Northern, NJ
    Tractor
    Kubota L45

    Default Re: third function.

    Quote Originally Posted by J_J View Post
    Say you have 11.8 GPM and an 18 in shaft on a 3 in cyl on the grapple.

    The extend speed would be about 2.83 sec, and retract would be about 2.14 sec. That is fairly quick.
    Well, 1 of 2 possibilities:

    1. The kubota 3rd function kit I had included a hidden flow restriction.
    2. This isn't an issue in practice.

    The grapple function never worked faster than I could handle. Now, realize I was using a GST tractor. I rarely set the rpm very high and used the foot throttle to maneuver the tractor and speed up the hydraulics when necessary.

    ac

  4. #24
    Super Star Member J_J's Avatar
    Join Date
    Sep 2003
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    16,875
    Location
    JACKSONVILLE, FL
    Tractor
    Power-Trac 1445, KUBOTA B-9200HST

    Default Re: third function.

    Quote Originally Posted by MtnViewRanch View Post
    The one problem with your calcs is that as far as I know of anyway, no grapple uses 3" dia cylinders. Smaller dia cylinders are normally used and so the movement should be quite a bit faster. (I think)
    I agree, I used that example as the extreme. And yes, it would be faster.

    Don't know why avc8130 grapple was slow.

    Cylinder Speed single cyl

    Bore Size 2 inches
    Rod Diameter 1 inches
    Pump Flow 11.8 GPM

    Extension Speed 14.5 inches per second = 1.25 sec
    Retraction Speed 19.3 inches per second = .93 sec
    J.J.

    When I works, I works hard. When I sits and thinks, I goes to sleep.

    Git er done.

  5. #25
    Super Star Member J_J's Avatar
    Join Date
    Sep 2003
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    16,875
    Location
    JACKSONVILLE, FL
    Tractor
    Power-Trac 1445, KUBOTA B-9200HST

    Default Re: third function.

    Chickengrower,

    If the valve is sized for the flow in GPM, any type valve will run the auger.

    You can use a selector valve, a true 3d function, or remote valve.
    J.J.

    When I works, I works hard. When I sits and thinks, I goes to sleep.

    Git er done.

  6. #26
    Super Star Member J_J's Avatar
    Join Date
    Sep 2003
    Posts
    16,875
    Location
    JACKSONVILLE, FL
    Tractor
    Power-Trac 1445, KUBOTA B-9200HST

    Default Re: third function.

    Quote Originally Posted by scobrado View Post
    I added rear hydraulics with the JD kit for my tractor specifically because I'm not up to speed on hydraulics. I'm still a hydro newbie, but I've been reading the Vickers Hydraulics manual and looking forward to the next project.

    I would like to use the rear controls for top 'n' tilt and add a 3rd function for a grapple. I would love to save some $ and buy parts, rather than a 3rd function kit. Anyone know of a parts list, DIY blogs, etc. for adding a 3rd function from parts rather than a kit?
    3ed function parts for grapple

    Surplus Center - 12 VDC 10 GPM OC DA SOLENOID VALVE

    Surplus Center - 1 STATION DO3 SUBPLATE OPEN CENTER

    Selector/diverter valve for grapple.

    Surplus Center - 12 VDC 13.2 GPM SAE 8 DOUBLE SELECTOR VALVE

    http://www.surpluscenter.com/Instruct/I9-7852.pdf

    Plus hoses, wire and switches.
    J.J.

    When I works, I works hard. When I sits and thinks, I goes to sleep.

    Git er done.

  7. #27
    Bronze Member Chickengrower's Avatar
    Join Date
    Jan 2013
    Posts
    80
    Location
    Arkansas
    Tractor
    JD 5093e, JD 2240, Bobcat 773G, F800 w/ 16' lo pro Chandler bed

    Default Re: third function.

    Thanks JJ! You da man!

  8. #28
    Platinum Member
    Join Date
    Oct 2010
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    665
    Location
    Northern, NJ
    Tractor
    Kubota L45

    Default Re: third function.

    Quote Originally Posted by J_J View Post
    I agree, I used that example as the extreme. And yes, it would be faster.

    Don't know why avc8130 grapple was slow.

    Cylinder Speed single cyl

    Bore Size 2 inches
    Rod Diameter 1 inches
    Pump Flow 11.8 GPM

    Extension Speed 14.5 inches per second = 1.25 sec
    Retraction Speed 19.3 inches per second = .93 sec
    JJ,

    I can't argue with the math, it is sound. Again, I didn't usually run the grapple at full rpm. I also had 2 cylinders on my grapple.

    It could also be noted that Everything Attachments, WR Long and Kubota all sell 3rd function kits. I don't believe ANY of them have any flow restriction. Lots of happy users on these forums and I don't see anyone complaining about how fast their grapples operate.

    ac

  9. #29
    Platinum Member
    Join Date
    Oct 2010
    Posts
    665
    Location
    Northern, NJ
    Tractor
    Kubota L45

    Default Re: third function.

    Quote Originally Posted by J_J View Post
    Chickengrower,

    If the valve is sized for the flow in GPM, any type valve will run the auger.

    You can use a selector valve, a true 3d function, or remote valve.
    JJ,

    I had brought this up a few months ago, and you mentioned that a relief valve should be used when running a Closed Center solenoid 3rd function with a motor:

    https://www.surpluscenter.com/item.a...name=hydraulic

    ac

  10. #30
    Platinum Member
    Join Date
    Oct 2010
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    665
    Location
    Northern, NJ
    Tractor
    Kubota L45

    Default Re: third function.

    If he uses an Open Center valve, won't his grapple "close" whenever he stops holding the solenoid button?

    ac

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