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  1. #1
    Veteran Member rjkobbeman's Avatar
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    Apr 2010
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    USA
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    Kubota M8540HD-12 2010

    Smile Installed restricted orifice on my hydraulic toplink today

    I finally got around to installing a couple of restrictive orifices on my hydraulic toplink today. MAN, what a difference that makes!

    Probably only needed one, but I put one on each line.

    I gave it a heavy workout today mowing a 300' ditch. Had to back into the ditch on each side. Mowed 6' at a time... up and down, up and down.

    I couldn't find the orifices when I installed the HTL. Was a pain to use... really jumped down hard, even when finessing the controls. The HTL is sweet now! Got a little warm, but the workout it got today is not normal.
    M8540HD12-1, R4s, Weights, 2 Remotes, Rear Lights, Down Exhaust
    LA1353 FEL, QA 72" Bucket, Self Leveling Valve, 3rd Function Remote
    CCM Category II Hydraulic Toplink
    QA 48" Pallet Forks
    M8180 Ballast Box with concrete
    LP QH-20 Quick Hitch
    LP RCR2672 6' Rotary Cutter
    LP GS2596 8' Grading Scraper
    BAC BG-10 Post/Tree Puller

    BX2370RV60-1, R4s, 60" Mower, Loader Valve
    BX2763A Snow Blade
    LP QH05 Quick Hitch
    Rear Remotes
    40 gallon 3ph sprayer
    Subsoiler with wire spool provision


  2. #2
    Platinum Member eepete's Avatar
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    Sep 2009
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    962
    Location
    Efland, NC
    Tractor
    JD 4520, Kubota B21, JD 318

    Default Re: Installed restricted orifice on my hydraulic toplink today

    What did you use to restrict it? Pictures?

    Pete
    '09 JD4520 Cab (60HP), '97 KubotaB21 TLB (21HP), MX6 rotary mower, SB1106 6' Sickle Bar, BB3272 6' box blade, GradeMaster 7' Landplane, 6' landscape rake, Woods GTC 40" tiller, PHD 9" auger, 4' x 8' chain harrow, '90 JD318 (18HP gas) with 48" MM mower, 54" front blade, 47" snowblower.
    Volunteer Firefighter.

  3. #3
    Advertiser kennyd's Avatar
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    Jul 2003
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    12,598
    Location
    Westminster, MD
    Tractor
    John Deere 4110, 455AWS

    Default Re: Installed restricted orifice on my hydraulic toplink today

    Quote Originally Posted by rjkobbeman View Post
    I finally got around to installing a couple of restrictive orifices on my hydraulic toplink today. MAN, what a difference that makes!

    Probably only needed one, but I put one on each line.

    I gave it a heavy workout today mowing a 300' ditch. Had to back into the ditch on each side. Mowed 6' at a time... up and down, up and down.

    I couldn't find the orifices when I installed the HTL. Was a pain to use... really jumped down hard, even when finessing the controls. The HTL is sweet now! Got a little warm, but the workout it got today is not normal.
    Just to confirm your thoughts, you do in fact only need one restictor.
    KennyD
    www.boltonhooks.com

    #BoltOnHooks



    Bolt On Grab Hooks, Weld On Grab Hooks, Specialty Chain and Rigging Accessories, Specialty Hydraulic Components, and MUCH more!

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  4. #4
    Veteran Member
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    Apr 2009
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    Port Angeles WA

    Default Re: Installed restricted orifice on my hydraulic toplink today

    would be nice to hear about your setup.....

    Generally speakin, there are a few things to take into concideration when setting up a restrictor...

    ...do you need restriction on both extend and retract?

    ...if there are inertia or gravity forces involved, meter out restriction is to prefere to prevent cavitation

    ...controlling pump flow, be careful using meter out restriction on rod side...need pressure calculations....

  5. #5
    Veteran Member rjkobbeman's Avatar
    Join Date
    Apr 2010
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    Kubota M8540HD-12 2010

    Default Re: Installed restricted orifice on my hydraulic toplink today

    Quote Originally Posted by eepete View Post
    What did you use to restrict it? Pictures?

    Pete
    I will take some pictures tonight. Didn't think about that.

    Pretty much your basic setup:

    CCM HTL with "double piloted check valve"
    Hoses going to/from HTL and rear remote valve
    Inline restrictor to restrict flow Swivel Adapter, 3/8 in. Restricted Male Pipe x 3/8 in. Female Pipe Swivel - 1818147 | Tractor Supply Company
    M8540HD12-1, R4s, Weights, 2 Remotes, Rear Lights, Down Exhaust
    LA1353 FEL, QA 72" Bucket, Self Leveling Valve, 3rd Function Remote
    CCM Category II Hydraulic Toplink
    QA 48" Pallet Forks
    M8180 Ballast Box with concrete
    LP QH-20 Quick Hitch
    LP RCR2672 6' Rotary Cutter
    LP GS2596 8' Grading Scraper
    BAC BG-10 Post/Tree Puller

    BX2370RV60-1, R4s, 60" Mower, Loader Valve
    BX2763A Snow Blade
    LP QH05 Quick Hitch
    Rear Remotes
    40 gallon 3ph sprayer
    Subsoiler with wire spool provision


  6. #6
    Gold Member nunyabinis's Avatar
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    Nov 2008
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    320
    Location
    The Outer Limits
    Tractor
    Deere

    Default Re: Installed restricted orifice on my hydraulic toplink today

    My HTL shipped from Surplus Center yesterday. I plan to put a restrictor in from the get-go.

    Also, kennyd convinced me to get an iMatch and modify all my implements to fit the iMatch and be done with it. Time to dust off the MIG and Plasma Cutter.

    I figure that a HTL mated to an iMatch that fits all my implements will be SWEET!!!

  7. #7
    Advertiser kennyd's Avatar
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    Jul 2003
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    Westminster, MD
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    John Deere 4110, 455AWS

    Default Re: Installed restricted orifice on my hydraulic toplink today

    Quote Originally Posted by nunyabinis View Post
    My HTL shipped from Surplus Center yesterday. I plan to put a restrictor in from the get-go.

    Also, kennyd convinced me to get an iMatch and modify all my implements to fit the iMatch and be done with it. Time to dust off the MIG and Plasma Cutter.

    I figure that a HTL mated to an iMatch that fits all my implements will be SWEET!!!
    KennyD
    www.boltonhooks.com

    #BoltOnHooks



    Bolt On Grab Hooks, Weld On Grab Hooks, Specialty Chain and Rigging Accessories, Specialty Hydraulic Components, and MUCH more!

    Simple JDParts Tutorial HERE

    Visit our YouTube Channel

  8. #8
    Platinum Member eepete's Avatar
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    Sep 2009
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    962
    Location
    Efland, NC
    Tractor
    JD 4520, Kubota B21, JD 318

    Default Re: Installed restricted orifice on my hydraulic toplink today

    rjkobbeman, tnx for reply. I have a CCM top link and side link. I also have an iMatch.

    I too am a kennyd and jenkinsph listener and convert.

    Pete
    Attached Thumbnails Attached Thumbnails Installed restricted orifice on my hydraulic toplink today-tnt_imatch-jpg  
    '09 JD4520 Cab (60HP), '97 KubotaB21 TLB (21HP), MX6 rotary mower, SB1106 6' Sickle Bar, BB3272 6' box blade, GradeMaster 7' Landplane, 6' landscape rake, Woods GTC 40" tiller, PHD 9" auger, 4' x 8' chain harrow, '90 JD318 (18HP gas) with 48" MM mower, 54" front blade, 47" snowblower.
    Volunteer Firefighter.

  9. #9
    Elite Member
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    MtnViewRanch's Avatar
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    Mar 2005
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    8,743
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    4000\' mountains of Southern California
    Tractor
    Mahindra 7520, Mahindra 3215HST, Case 580 extendahoe, Case 310 dozer, Parsons trencher, Cat D6,

    Default Re: Installed restricted orifice on my hydraulic toplink today

    eepete, your rig sure looks nice. I have a question though, do you find that your top link is to long? In the picture it looks like you can't get much forward tilt, is that the case or not even needed in your situations?
    Brian
    Top and Tilt Kits by Fit Rite Hydraulics

  10. #10
    Platinum Member eepete's Avatar
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    Efland, NC
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    JD 4520, Kubota B21, JD 318

    Default Re: Installed restricted orifice on my hydraulic toplink today

    Picture is worth 1000 words, here's 4000 words worth of answer .

    I still have the manual side link on the other side, so if I want to get out of the cab I can bias the side to side tilt a bit more.

    The hoses going up for the tilt are a little odd. This winter I'll look at getting them to re-direct under the tractor and not so they are touching the rear window of the cab. jenkinsph has his set up that way, it's cleaner.

    Pete
    Attached Thumbnails Attached Thumbnails Installed restricted orifice on my hydraulic toplink today-tnt_down_small-jpg   Installed restricted orifice on my hydraulic toplink today-tnt_up_small-jpg   Installed restricted orifice on my hydraulic toplink today-tnt_left_small-jpg   Installed restricted orifice on my hydraulic toplink today-tnt_right_small-jpg  
    '09 JD4520 Cab (60HP), '97 KubotaB21 TLB (21HP), MX6 rotary mower, SB1106 6' Sickle Bar, BB3272 6' box blade, GradeMaster 7' Landplane, 6' landscape rake, Woods GTC 40" tiller, PHD 9" auger, 4' x 8' chain harrow, '90 JD318 (18HP gas) with 48" MM mower, 54" front blade, 47" snowblower.
    Volunteer Firefighter.

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