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  1. #1
    Silver Member
    Join Date
    Jul 2004
    Posts
    135
    Location
    Lady Lake, Fl.
    Tractor
    Jinma 284

    Default Three Point Lift

    Last time I used my Three point lift to use my disc it worked properly, always has worked since I got it new in July 2002. Today I put it on to disc up my daughters garden and I pull up the lever and it only comes up about 3-4 inches. Returen the lever to neutral and pull up again and get another 3-4 inches. Have to do that same routine about 4 times to get the disc off the ground properly. Maybe a couple times it worked correctly. When it is up it will stay up, no leaking down. Any ideas whats wrong? Thanks, Pat

  2. #2
    Super Star Member Diamondpilot's Avatar
    Join Date
    Jan 2007
    Posts
    14,313
    Location
    Daleville, IN
    Tractor
    Jinma 254/284 Ford 861 Powermaster at work

    Default

    Check the fluid level. If ok I would suspect the priority valve has crud in it dumping to steering. Had this happen with mine.

    Took it off, disassembled, cleaned with brake cleaner, and replace.

    Chris

  3. #3
    Elite Member RonMar's Avatar
    Join Date
    May 2005
    Posts
    2,755
    Location
    Port Angeles WA
    Tractor
    Jinma 284 delivered 06/28/05

    Default Re: Three Point Lift

    Or possibly there is something wrong with the pressure releif valve back in the 3PH control valve...
    Ron

  4. #4
    Platinum Member
    Join Date
    Nov 2008
    Posts
    682
    Location
    Brampton, On\lot Powassan, ON Canada
    Tractor
    Kubota B4200\MF 135\Kubota B3200

    Default Re: Three Point Lift

    Thats what my kubota B3200 does. It only comes up so far and then I have to reset the control lever and pull it up once or twice more to get the 3PTH to the top of its range. I am chocking my issue as a new owner who does not know how my 3PTH works in this new tractor (78hrs). Maybe its not me?
    Unimogdave

  5. #5
    Silver Member
    Join Date
    Jul 2004
    Posts
    135
    Location
    Lady Lake, Fl.
    Tractor
    Jinma 284

    Default Re: Three Point Lift

    Chris, I had checked the fluid level and it is fine. I didn't think about it but this is the first time I have used the lift since I changed the fluids about 3 months ago. Pat

  6. #6
    Super Member greg_g's Avatar
    Join Date
    Dec 2003
    Posts
    6,028
    Location
    Western Kentucky
    Tractor
    JD3720 Cab, 300X loader with 4-in-1 bucket

    Default Re: Three Point Lift

    That might point to the problem. What specifically did you use to replace the OE hydraulic fluid? Most folks in moderate climates use AW32 (or ISO32) in the hydraulics. Assuming you seldom get below 40F in Lady Lake, you'll probably acceptable performance out of AW46/ISO46 too. I wouldn't use anything thicker than that.

    //greg//
    USN (Ret)
    Former Chinese tractor owner (x4)
    Current John Deere owner

  7. #7
    Elite Member newbury's Avatar
    Join Date
    Jan 2009
    Posts
    4,680
    Location
    From Vt, in Va, retiring to MS
    Tractor
    Kubota's - B7610, M4700

    Default Re: Three Point Lift

    And of course check your lowering speed adjustment valve.
    My rides - '95 Kubota M4700 w/ PEC, LA1001 FEL :'07 B7610, LA352 FEL, Bush Hog SBX 48 box blade, '09 Woods BH70-X w/ 16" bucket and thumb, 3pt pallet forks, Dale Phillips PHD, Jinma 8" chipper, 2 Piranha's, Winco 12KW PTO generator, Howse plow, 5' KK tiller, 5' Big Bee cutter, with a 2002 7.3L Ford F350 CC DRW 4x4 and '07 18' Hudson HSE Deluxe trailer - 5 Ton to haul it all

  8. #8
    Silver Member
    Join Date
    Jul 2004
    Posts
    135
    Location
    Lady Lake, Fl.
    Tractor
    Jinma 284

    Default Re: Three Point Lift

    Greg, I used AW32, thats all I have ever used. I suspect it might be the priority valve. May be a while before I get to cleaning it out. Real busy in the peach field right now. Pat

  9. #9
    Veteran Member
    Join Date
    Dec 2007
    Posts
    1,457
    Location
    Eastern Ontario
    Tractor
    Jinma 284(Spirit fel), MF 135 (MF200 fel)

    Default Re: Three Point Lift

    And of course check your lowering speed adjustment valve
    +1 -- also make sure the piece on the end of the valve stem is free to move

  10. #10
    Silver Member
    Join Date
    Jul 2004
    Posts
    135
    Location
    Lady Lake, Fl.
    Tractor
    Jinma 284

    Default Re: Three Point Lift

    I unhooked the spray rig and attached the bush hog today and the lift worked like a charm. Up all the way first time everytime. May have been a piece of trash in the priority valve that has now moved on. Thanks to all who helped. Pat.

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