Target hydraulic pressure for x758 SCV?
Page 1 of 2 1 2 LastLast
Results 1 to 10 of 11
Like Tree3Likes

Thread: Target hydraulic pressure for x758 SCV?

  1. Top | #1

    Join Date
    Apr 2016
    Last Online
    Yesterday @ 07:23 AM
    Location
    Minnesota
    Posts
    1,210
    Thanks
    20
    Thanked 82 Times in 78 Posts

    Target hydraulic pressure for x758 SCV?

    What is the factory rating for an x758's hydraulic pressure at the SCV? I'm getting a gauge to check my 2520 and figured I may as well check the x758 too.

    Thanks,
    Rob
    2016 x758 w/60" HC mower, 54" snowblower, MC519 bagger
    2010 2520 w/61" H130 loader, TA 42" forks, KK 60" Pro tiller, iMatch quick hitch, KK middle buster
    1996 345 - Traded
    Other toys: Stihl BR600 backpack blower; McCulloch chainsaws: 10-10S, 700, 805, 10-10; JD trimmer

    2520:__________________________x758:__________________________Faithful 345:___________________

  2. Remove Advertisements
    GreenTractorTalk.com
    Advertisements
     

  3. Top | #2

    Join Date
    Mar 2019
    Last Online
    05-24-2019 @ 05:11 AM
    Posts
    39
    Thanks
    0
    Thanked 4 Times in 4 Posts
    On X748 it was 975 psi. Should be in roughly the same neighborhood for X758.

  4. The Following User Says Thank You to UrbanTractor For This Useful Post:

    BigBlue†(04-02-2019)

  5. Top | #3

    Join Date
    Apr 2016
    Last Online
    Yesterday @ 07:23 AM
    Location
    Minnesota
    Posts
    1,210
    Thanks
    20
    Thanked 82 Times in 78 Posts
    Quote Originally Posted by UrbanTractor View Post
    On X748 it was 975 psi. Should be in roughly the same neighborhood for X758.
    Thanks!
    2016 x758 w/60" HC mower, 54" snowblower, MC519 bagger
    2010 2520 w/61" H130 loader, TA 42" forks, KK 60" Pro tiller, iMatch quick hitch, KK middle buster
    1996 345 - Traded
    Other toys: Stihl BR600 backpack blower; McCulloch chainsaws: 10-10S, 700, 805, 10-10; JD trimmer

    2520:__________________________x758:__________________________Faithful 345:___________________

  6. Remove Advertisements
    GreenTractorTalk.com
    Advertisements
     

  7. Top | #4

    Join Date
    Jun 2013
    Last Online
    Yesterday @ 10:20 PM
    Location
    Southern Maine
    Posts
    7,282
    Thanks
    592
    Thanked 686 Times in 576 Posts
    I thought the k92 was specíd to 1500psi?

  8. Top | #5

    Join Date
    Mar 2019
    Last Online
    05-24-2019 @ 05:11 AM
    Posts
    39
    Thanks
    0
    Thanked 4 Times in 4 Posts
    Quote Originally Posted by rydplrs View Post
    I thought the k92 was specíd to 1500psi?
    I believe 1500 psi is a theoretical max rating for the K92, but JD set the IRV at 975 PSI on the X7 series. When owners "shim" for an FEL, they typically bump it up to around 1100-1200 psi. Some brave souls take it up higher.

    The X758 uses the K90 (or is it K91?). But I imagine it has a similar spec.

  9. Top | #6

    Join Date
    Jun 2013
    Last Online
    Yesterday @ 10:20 PM
    Location
    Southern Maine
    Posts
    7,282
    Thanks
    592
    Thanked 686 Times in 576 Posts
    Quote Originally Posted by UrbanTractor View Post
    I believe 1500 psi is a theoretical max rating for the K92, but JD set the IRV at 975 PSI on the X7 series. When owners "shim" for an FEL, they typically bump it up to around 1100-1200 psi. Some brave souls take it up higher.

    The X758 uses the K90 (or is it K91?). But I imagine it has a similar spec.


    The 4x5ís use a k91, and go to 1250 psi. I shimmed my 445. Thx x series has k92 in the two wheel steer models, and Iím pretty sure itís specíd at 1500.

    If your not using a loader Iím wondering why your checking? It doesnít take much for steering or any implement lifts, and being separated from drive pressure there isnít really any reason to mess with it even if itís low if it does what you need.

    My 445 was in the 1050 range before shimming.

    My 420 is about 650 psi and will lift 600 lbs on the 3 point without even straining. The spec on that is 850-875.

  10. Top | #7

    Join Date
    Mar 2019
    Last Online
    05-24-2019 @ 05:11 AM
    Posts
    39
    Thanks
    0
    Thanked 4 Times in 4 Posts
    Quote Originally Posted by rydplrs View Post
    The 4x5ís use a k91, and go to 1250 psi. I shimmed my 445. Thx x series has k92 in the two wheel steer models, and Iím pretty sure itís specíd at 1500. ...
    Keith, yes the transmission has a design spec of 1500 psi, but JD uses an IRV set at +/- 975 on the previous X7 Ultimate Series AWD models, and I don't believe it was any higher on the 2WS non-AWD models. So that is about what BigBlue should measure with his gauge unless JD made a change on the latest X7 Signature Series.

    BigBlue, did you take the measurement?

  11. Top | #8

    Join Date
    Apr 2016
    Last Online
    Yesterday @ 07:23 AM
    Location
    Minnesota
    Posts
    1,210
    Thanks
    20
    Thanked 82 Times in 78 Posts
    Quote Originally Posted by rydplrs View Post
    The 4x5ís use a k91, and go to 1250 psi. I shimmed my 445. Thx x series has k92 in the two wheel steer models, and Iím pretty sure itís specíd at 1500.

    If your not using a loader Iím wondering why your checking? It doesnít take much for steering or any implement lifts, and being separated from drive pressure there isnít really any reason to mess with it even if itís low if it does what you need.

    My 445 was in the 1050 range before shimming.

    My 420 is about 650 psi and will lift 600 lbs on the 3 point without even straining. The spec on that is 850-875.
    I'm putting together a gauge to check the pressure in my 2520 just out of curiosity (to see if there is any room for improvement of the loader capacity) and so I figured I'd check the x758 just for the heck of it. I have no problems with the x758 and no reason to believe it is out of spec.

    Rob
    mike01 likes this.
    2016 x758 w/60" HC mower, 54" snowblower, MC519 bagger
    2010 2520 w/61" H130 loader, TA 42" forks, KK 60" Pro tiller, iMatch quick hitch, KK middle buster
    1996 345 - Traded
    Other toys: Stihl BR600 backpack blower; McCulloch chainsaws: 10-10S, 700, 805, 10-10; JD trimmer

    2520:__________________________x758:__________________________Faithful 345:___________________

  12. Top | #9

    Join Date
    Apr 2016
    Last Online
    Yesterday @ 07:23 AM
    Location
    Minnesota
    Posts
    1,210
    Thanks
    20
    Thanked 82 Times in 78 Posts
    Quote Originally Posted by UrbanTractor View Post
    Keith, yes the transmission has a design spec of 1500 psi, but JD uses an IRV set at +/- 975 on the previous X7 Ultimate Series AWD models, and I don't believe it was any higher on the 2WS non-AWD models. So that is about what BigBlue should measure with his gauge unless JD made a change on the latest X7 Signature Series.

    BigBlue, did you take the measurement?
    Haven't received the parts for the gauge yet. Later this week. Just doing my homework... :-)

    Rob
    mike01 likes this.
    2016 x758 w/60" HC mower, 54" snowblower, MC519 bagger
    2010 2520 w/61" H130 loader, TA 42" forks, KK 60" Pro tiller, iMatch quick hitch, KK middle buster
    1996 345 - Traded
    Other toys: Stihl BR600 backpack blower; McCulloch chainsaws: 10-10S, 700, 805, 10-10; JD trimmer

    2520:__________________________x758:__________________________Faithful 345:___________________

  13. Top | #10

    Join Date
    Apr 2016
    Last Online
    Yesterday @ 07:23 AM
    Location
    Minnesota
    Posts
    1,210
    Thanks
    20
    Thanked 82 Times in 78 Posts
    Got my gauge put together and tested the system today. Looks like my x758 is right about 925# which is pretty much right where Deere's specs say it should be (got the exact numbers from my dealer's service manager = 924psi).

    On a side note, if there is anyone in the central MN area (near Hutchinson) you're welcome to borrow my gauge to test your tractor.

    Rob
    mike01 likes this.
    2016 x758 w/60" HC mower, 54" snowblower, MC519 bagger
    2010 2520 w/61" H130 loader, TA 42" forks, KK 60" Pro tiller, iMatch quick hitch, KK middle buster
    1996 345 - Traded
    Other toys: Stihl BR600 backpack blower; McCulloch chainsaws: 10-10S, 700, 805, 10-10; JD trimmer

    2520:__________________________x758:__________________________Faithful 345:___________________

  14. Remove Advertisements
    GreenTractorTalk.com
    Advertisements
     

Page 1 of 2 1 2 LastLast

Similar Threads

  1. Replies: 2
    Last Post: 12-08-2014, 11:47 AM
  2. Selling some bow block - target practice time
    By ddivinia in forum For Sale
    Replies: 0
    Last Post: 11-29-2010, 09:37 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts