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  1. R

    M9540 Hydraulic whinning

    Me thinks I have a problem with the steering unit. Most of the whine seems to be coming from the steering unit and more appearent when the whell is turned. My wallet cant stand another oil change. Anyone know anything about the steering units? Failure prone? Repairable? Ran a smaller rotary...
  2. R

    M9540 Hydraulic whinning

    Y'all hijacked my thread.
  3. R

    M9540 Hydraulic whinning

    Well I changed the hydro fluid with 16gals of udt and two new filters. Now the hydraulics and wallet is whining. Seems like most of the whine is coming fr the steering unit and sometimes it won't turn while at a stand still even without a load.Thoughts anyone?
  4. R

    M9540 Hydraulic whinning

    So UDT, Super UDT or what? Probably best to go back with what was in it from Kubota and see if it fixes symtoms I guess????
  5. R

    M9540 Hydraulic whinning

    New subscriber and first thread. Hi all. Just purchased a used M9540 cab tractor. 1180 hours. 1)There is a hydraulic whine coming from the transmission and possibly the hydraulic steering control. It is appearent at most engine speeds, but more appearent when the steering wheel is turned...