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replacing hydraulic reservoir

Discussion in 'Fisher Engineering Discussion' started by mulcahy mowing, Nov 28, 2010.

  1. mulcahy mowing

    mulcahy mowing Senior Member
    Messages: 718

    Have you ever had the reservoir under the pump on your fisher rust out? mine is shot so im replacing it but its so rusted on I cant get it free. :realmad: I've hit it with every penatrating oil I can buy but still nothing, no luck at all. Any mechanics out there with any advise? im thinking about just replacing the whole unit :eek: anyone know how much the pumps sell for at the dealer?

  2. snow7899

    snow7899 Senior Member
    Messages: 234

    Were you able to get the four screws out? If you were try using a mallot to rock the res side to side. Worst case use a screw driver between the res and the valve body.
  3. mulcahy mowing

    mulcahy mowing Senior Member
    Messages: 718

    No the four screws are rusted on can't back them out
  4. Arc Burn

    Arc Burn PlowSite.com Addict
    Messages: 1,141

    You gotta lose the screws first,I have used heat in the past but be VERY carefull because the manifold is aluminum,it doesn't take much anyways because the screws are so small,you really don't want to buy the whole unit as it's up in the $1k range
  5. RichG53

    RichG53 PlowSite.com Addict
    Messages: 1,135

    That why I keep every thing lubed constantly... And.I mean every thing that can rust ...

    Dose not take much to spray things down occasionally...
    Last edited: Nov 29, 2010