Page 1 of 2 12 LastLast
Results 1 to 10 of 17
  1. #1
    Platinum Member
    Join Date
    Mar 2010
    Posts
    677
    Location
    Hayward Wi
    Tractor
    Kubota BX2230D

    Default JD X720

    I have a question for you Deere guys. My friend just got a new X720 and was telling me the book says to engage the PTO when engine is at full rpm. Boy, that sounds like a real jolt to everything and tough on clutch pack. Darn near like dropping the clutch at drag strip.

    Is this common w/JD or just this series?

  2. #2
    Super Member
    Join Date
    Feb 2008
    Posts
    9,806
    Location
    somewhere usa
    Tractor
    Deere 110tlb, 4520, x749, L130

    Default Re: JD X720

    Don't know about the book but I would read the verbage myself to make sure the interpetation is correct. I would much prefer to engage the pto at the lowest rpm possible then increase the engine speed to the pto setting. That is just me.

  3. #3
    Platinum Member JD755's Avatar
    Join Date
    Aug 2009
    Posts
    895
    Location
    Kansas
    Tractor
    John Deere 755 purchased new in 1993

    Default Re: JD X720

    Wow, the manual does say full RPM. All the manuals for JD compacts I have seen say to reduce RPM. Maybe the X720 has insufficient power such that engaging at less that full RPM would kill the engine?
    Attached Thumbnails Attached Thumbnails -x720-pto-jpg  
    JD 755, 70 Loader, 60 inch MMM, Landpride rear blade, Modern box blade, Wallace subsoiler

  4. #4
    Super Member
    Join Date
    Feb 2008
    Posts
    9,806
    Location
    somewhere usa
    Tractor
    Deere 110tlb, 4520, x749, L130

    Default Re: JD X720

    JD755,
    I am hoping the 749 will have enough torque so that this isn't necessary. Guess I will find out soon.

  5. #5
    Platinum Member JD755's Avatar
    Join Date
    Aug 2009
    Posts
    895
    Location
    Kansas
    Tractor
    John Deere 755 purchased new in 1993

    Default Re: JD X720

    Quote Originally Posted by jenkinsph View Post
    JD755,
    I am hoping the 749 will have enough torque so that this isn't necessary. Guess I will find out soon.
    A friend of mine had, I believe, a 445 gas that he said he always had to engage his MMM at full RPM or the engine would die. When he got a 2520 I noticed he was still doing that. I checked his manual and it said to reduce RPM for engagement. He did and it worked fine. I would expect the engine in the X749 to handle reduced RPM engagement just fine, but I see the exact same words in its manual as the X720 about using full RPM. Maybe there is something else we don't know about, although I'm sure you will try the reduced setting first. If that works I would stick with it.
    JD 755, 70 Loader, 60 inch MMM, Landpride rear blade, Modern box blade, Wallace subsoiler

  6. #6
    Platinum Member
    Join Date
    Mar 2010
    Posts
    677
    Location
    Hayward Wi
    Tractor
    Kubota BX2230D

    Default Re: JD X720

    The X720 is listed at 27hp, so I don't think power is the issue. Just don't make sense to me, thats all.

  7. #7
    Veteran Member
    Join Date
    Sep 2003
    Posts
    1,243
    Location
    Hartselle, Alabama
    Tractor
    Deere 2520

    Default Re: JD X720

    When I'm mowing on my x744 and forget to pull the switch up to back up, it kills the mower. I never idle down to turn it back on. I turn it on at full throttle and keep going. JC
    JD 3320 LX5, KK rake and off brand box and rear blade. Millonzi grapple. Deere X495 for grass cutting.
    01 Ram 4x4 2500 CTD and 22' 12k trailer. Want a tiller and dump trailer.

  8. #8
    Veteran Member KB9UDE's Avatar
    Join Date
    Apr 2006
    Posts
    1,023
    Location
    North of Tower Hill, IL
    Tractor
    John Deere 3320

    Default Re: JD X720

    The x720 will start the mower at LOW rpms but it works better mid way up to full throttle. I never read the book but found it does work better with a higher speed than idle.
    John






    John Deere 3320 - 72D Auto Connect deck



    Acts 2:38

  9. #9
    Platinum Member JD755's Avatar
    Join Date
    Aug 2009
    Posts
    895
    Location
    Kansas
    Tractor
    John Deere 755 purchased new in 1993

    Default Re: JD X720

    How are the PTO's connected on these tractors? Are they like the old garden tractors that ran pretty much directly off the engine rather than from the transmission like the compacts? Could be something there.
    JD 755, 70 Loader, 60 inch MMM, Landpride rear blade, Modern box blade, Wallace subsoiler

  10. #10
    Gold Member fgross335_2210's Avatar
    Join Date
    Jul 2003
    Posts
    362
    Location
    West Michigan
    Tractor
    2210, 355D, 1950 Model B

    Default Re: JD X720

    Most JD L&G tractors have an electric PTO clutch mounted directly to the bottom of the engine. I know when Deere introduced RIO they beefed up the clutches to handle full RPM engagement as it was obvious people would forget to use RIO and would back up and kill the mower and then immediately just push/pull the PTO switch to reengage the mower deck.

    My Dad's 345 was pre-RIO and the manual said to reduce RPM's. My 335 and 355 are post-RIO and both manuals says WOT is fine.
    Fred G
    2210/FEL/62C, 355D/54C

Page 1 of 2 12 LastLast

Similar Threads

  1. Does JD 328/338/348 Baler Model Matter?
    By chetlenox in forum John Deere Ag Tractors
    Replies: 35
    Last Post: 12-10-2013, 11:03 AM
  2. Toolcat 5610 vs CUT review
    By radman1 in forum Buying/Pricing/Comparisons
    Replies: 18
    Last Post: 08-29-2013, 03:50 PM
  3. Upgrading from JD 870 to JD 3x20 series
    By Sukee in forum John Deere Owning/Operating
    Replies: 14
    Last Post: 09-13-2008, 07:17 PM
  4. Statement regarding JD "synthetic" & "semi-syn..."
    By sixdogs in forum Oil, Fuel & Lubricants
    Replies: 2
    Last Post: 01-13-2008, 02:01 PM
  5. Kubota Grand L 3240 hst vs JD 3320
    By farmerjim62 in forum John Deere Buying/Pricing
    Replies: 3
    Last Post: 12-01-2007, 09:55 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
© 2014 TractorByNet.com. TractorByNet is a registered trademark of IMC Digital Universe, Inc. Other trademarks on this page are the property of their respective owners.