DYNA MOW A-72 need help!!!!!

Discussion in 'Mechanic and Repair' started by jeepgang, May 4, 2013.

  1. jeepgang

    jeepgang LawnSite Member
    Messages: 4

    Have a old dynamow A - 72 . It is all hydro including the mower deck. Can anybody tell me what type oil goes in the hydro tank.
  2. jeepgang

    jeepgang LawnSite Member
    Messages: 4

    Help please
  3. Restrorob

    Restrorob LawnSite Fanatic
    Messages: 11,029

    I've never heard of this machine and just googled a couple pics, I'll give you what I know. Most all Hydro-gear pumps run 20w50 engine oil, Older Eaton pumps ran 30w engine oil. If the oil in the tank looks like engine oil run which ever oil above for the pump maker.....
  4. Mowingman

    Mowingman LawnSite Platinum Member
    from Texas
    Messages: 4,720

    I would also think most any of the medium weight hydraulic fluids would work. Something like an AW47 hydraulic oil. You might want to talk to a hydraulic rebuild shop and get some other suggestions.
  5. R & R Yard Designs

    R & R Yard Designs LawnSite Senior Member
    Messages: 646

    If you don't know what type is in there. Take a sample and send it to Blackstone labs and have them test it then go from there.
    Posted via Mobile Device
  6. jeepgang

    jeepgang LawnSite Member
    Messages: 4

    Thanks for the help.
  7. Oldtimer

    Oldtimer LawnSite Bronze Member
    Messages: 1,459

    We work on a DynaMow from time to time. Great concept and great mower but way ahead of it's time.

  8. jeepgang

    jeepgang LawnSite Member
    Messages: 4

    Can you tell me if the hydro motors on the mower deck can be rebuilt. I have one that is leaking a little. May just need a seal replaced .

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