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  1. #1
    Silver Member
    Join Date
    Feb 2011
    Posts
    108
    Location
    Van - S Cariboo; BC
    Tractor
    Yanmar YM180D

    Default Cross Ref for 180D Hydraulic Filter; Hydraulic Pulse in the 3 pt hitch

    afternoon Yami friends

    Its been a while ...

    I have a 2 part question one to cross ref hydraulic filters and one on pulsing 3 pt hitch; 5 mm evey 20 seconds at idle.

    Im just looking to relace a hydraulic filter and may have a time locating one on short notice; heres Hyd Filter numbers I'v collected so far. Anyhting unique to the OEM Hyd Filters?
    Old YM Number YMPN# 194464-48310 - M
    Yanmar #: 40538 (Replaces: 194464-48310)
    CAPA 140VL-35 or CP 145-35
    Perkins 2854403; Purex PF-P-284

    Any thoughts on why the hydraulic pump is pulsing; the Hyd/trans fluid looks clear and clean; is there a way to check the hydraulic pump asides from a pressure test? (cause I dont have a 2000 psi gauge at the moment).

    Cheers BC Dave
    YM 180D 89

  2. #2
    Elite Member
    Join Date
    Dec 2009
    Posts
    2,707
    Location
    gilmer tx
    Tractor
    yanmar 2002d

    Default Re: Cross Ref for 180D Hydraulic Filter; Hydraulic Pulse in the 3 pt hitch

    Wix 51525. Are you sure the pump is pulsing and not just the 3 point leaking down and lift doing its duty in picking it back up. Raise it up, close the stop valve and see if it goes down pretty quick.

  3. #3
    Silver Member
    Join Date
    Feb 2011
    Posts
    108
    Location
    Van - S Cariboo; BC
    Tractor
    Yanmar YM180D

    Default Re: Cross Ref for 180D Hydraulic Filter; Hydraulic Pulse in the 3 pt hitch

    Quote Originally Posted by winston1 View Post
    Wix 51525. Are you sure the pump is pulsing and not just the 3 point leaking down and lift doing its duty in picking it back up. Raise it up, close the stop valve and see if it goes down pretty quick.
    Ooooh! its supposed to leak down? ... then up again ... I'll try closing the hydraulic stop valve (the one under the seat righ?) and see what happens; but shouldnt that just close the hydraulics form the pump? I'll try next week when Im with the tractor.
    YM 180D 89

  4. #4
    Elite Member
    Join Date
    Dec 2009
    Posts
    2,707
    Location
    gilmer tx
    Tractor
    yanmar 2002d

    Default Re: Cross Ref for 180D Hydraulic Filter; Hydraulic Pulse in the 3 pt hitch

    No, it is not suppose to leak up and down but if your piston o-ring is leaking the lift will keep raising it up to your setting.

  5. #5
    Silver Member
    Join Date
    Feb 2011
    Posts
    108
    Location
    Van - S Cariboo; BC
    Tractor
    Yanmar YM180D

    Default Re: Cross Ref for 180D Hydraulic Filter; Hydraulic Pulse in the 3 pt hitch

    ok ... but; wheres the piston O ring?
    YM 180D 89

  6. #6
    Super Member California's Avatar
    Join Date
    Jan 2004
    Posts
    5,681
    Location
    Sonoma County
    Tractor
    Yanmar YM240, YM186D, and another YM186D

    Default Re: Cross Ref for 180D Hydraulic Filter; Hydraulic Pulse in the 3 pt hitch

    ok ... but; wheres the piston O ring?
    On the piston ........ under the seat.

    Look at the parts diagram on Hoye's website. I've read that these are pretty simple to replace but I haven't done one myself. Maybe order the gasket for the differential top cover, too.

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