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  1. #1
    Bronze Member
    Join Date
    Sep 2009
    Posts
    54

    Default How often to change gearoil in BH rotary cutter SQ172?

    I changed the 80w90 gear oil in a friend's Bush Hog rotary cutter (SQ172) last year in May and has approximately 12 hours on it. Manual gives no schedule on changing the oil just refill to bring level to check plug hole. How often should this gear oil be changed?

  2. #2
    Veteran Member
    Join Date
    Jul 2014
    Posts
    1,574
    Location
    Guin, AL
    Tractor
    Kubota L3200 w/LA524 FEL, Loaded rear tires, LP RCR 1860 5' Cutter, LP RTA 1258 5' Tiller, LP PFL 2042 Pallet Forks w/60" Extensions

    Default Re: How often to change gearoil in BH rotary cutter SQ172?

    My LP BH says the same thing. Just refill, nothing about changing the oil.
    US Air Force Retired (1966-1988) ... mike

  3. #3
    Veteran Member
    Join Date
    Dec 2003
    Posts
    1,716
    Location
    GA, TN
    Tractor
    Kubota L4330HST

    Default Re: How often to change gearoil in BH rotary cutter SQ172?

    I plan to change the gearbox lube in my BH286 every time the bottom seal gets taken out by a stray piece of barbed wire.

  4. #4
    Gold Member
    Join Date
    Sep 2013
    Posts
    346
    Location
    Miccosukee, FL
    Tractor
    JD 855, NH575E

    Default Re: How often to change gearoil in BH rotary cutter SQ172?

    How often have you changed the oil in the differential on your vehicles? I only change gear oil when repairs are made. Never done as preventative maintenance but it won't hurt anything but your wallet to do it.


    SH

  5. #5
    Veteran Member
    Join Date
    Aug 2013
    Posts
    1,750
    Location
    Parker, CO
    Tractor
    Kubota L3200hst

    Default Re: How often to change gearoil in BH rotary cutter SQ172?

    I change mine every few years, maybe 4-5 or so, unless it gets contaminated with anything, especially water (looks like hot chocolate or a milkshake).

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