Page 1 of 2 12 LastLast
Results 1 to 10 of 15
  1. #1

    Join Date
    Jan 2004
    Posts
    3
    Tractor
    Kubota M5400

    Default How old is the hydraulic fluid

    I recently bought a kubota M5400 with 1100 hours. Is there a way to tell how old the hydraulic fluid is? I know that I should assume that it needs changing. However it looks clear as glass. I hate to throw it away for nothing. The filters are not new.

  2. #2
    Gold Member JASTN70D's Avatar
    Join Date
    Nov 2003
    Posts
    407
    Location
    Northeast Ohio
    Tractor
    T4020 Deluxe

    Default Re: How old is the hydraulic fluid

    I would check with a Dealer I know that fluid can be analyzed. I Have no idea of the cost though.
    I have never seen used hydraulic fluid look anything but new on a machine even when it is time for a change. Kind of the nature of the use. I guess if you had a serious problem like water or air it would show up by looking at it but for just used I doubt very much it will look much different than new.

  3. #3
    Veteran Member kevinj's Avatar
    Join Date
    Jul 2003
    Posts
    1,335
    Location
    West MI
    Tractor
    BX-1860, L3940HSTC, B7500, Farmall M, Farmall 560D

    Default Re: How old is the hydraulic fluid

    When I buy a used machine I figure to pull a complete PM unless the dealer can prove when it was last serviced. Oil, filters & grease are cheap compared to repairs.

  4. #4
    Elite Member thcri's Avatar
    Join Date
    Jan 2003
    Posts
    4,672
    Location
    Minnesota SE
    Tractor
    New Holland TC29D, 2001

    Default Re: How old is the hydraulic fluid

    My experience with hydraulic fluid is that it always looks clean. Don't take a chance on it. Change it unless you have documents stating it was changed at such and such a time.

    just my opinion.

    murph

  5. #5

    Join Date
    Feb 2002
    Posts
    540
    Location
    Mukwonago, WI
    Tractor
    BX2200, '52 8N

    Default Re: How old is the hydraulic fluid

    Blackstone Labs does oil analysis. You can send them an oil sample from your engine as well. Their tests will let you know if there are any internal problems or possible concerns. Well worth the $20 bucks. As for the hydraulic fluid I'd probably just change it and the filter just so YOU know what's in it and when it was last changed for sure.

  6. #6
    Epic Contributor Soundguy's Avatar
    Join Date
    Mar 2002
    Posts
    49,163
    Location
    Central florida
    Tractor
    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: How old is the hydraulic fluid

    The fact that the filters are old would be reason enough for me to change the oil. You have no idea whether the previous owner went cheap and put straight hydraulic jack oil in ( clear ) or paid twice as much for the correct universal transdraulic oil... much of which is light honey colored...

    Get rid of the old filters... I'll bet the filters cost more than a 5 gallon pail of oil anyway.... They do on my NH.

    Soundguy

  7. #7
    Veteran Member
    Join Date
    Jun 2003
    Posts
    1,649
    Location
    Northern, New York
    Tractor
    Kubota L3830 03: RTV 900

    Default Re: How old is the hydraulic fluid

    It makes great bar oil for a chainsaw. So in a sense your would be recycling it.

  8. #8
    Veteran Member Slamfire's Avatar
    Join Date
    Mar 2002
    Posts
    1,494
    Location
    Coker Creek, TN
    Tractor
    Mitsubishi D 1800

    Default Re: How old is the hydraulic fluid

    I've been usin' recycled vegtable oil on my chainsaw, figurin' it'll break down in the enviornment. Don't cost nothin' either. [img]/forums/images/graemlins/wink.gif[/img]

  9. #9
    Epic Contributor
    R.I.P.
    jinman's Avatar
    Join Date
    Feb 2001
    Posts
    21,014
    Location
    Texas - Wise County - Sunset
    Tractor
    NHTC45D, NH LB75B, Ford Jubilee

    Default Re: How old is the hydraulic fluid

    </font><font color="blue" class="small">( I've been usin' recycled vegtable oil on my chainsaw )</font>
    ...so when you're out there cuttin' firewood, does your chainsaw smell like french fries when it gets hot? [img]/forums/images/graemlins/laugh.gif[/img]

  10. #10
    Super Member
    Join Date
    Apr 2000
    Posts
    6,293
    Location
    central New York
    Tractor
    all makes and models

    Default Re: How old is the hydraulic fluid

    If it doesn't look milky then it probably is fine to use. I would pick a time when the weather is consistant and condisation would not be a consideration and change it and filters then.

Page 1 of 2 12 LastLast

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.