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Old 05-04-2013, 01:19 AM
jeepgang jeepgang is offline
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DYNA MOW A-72 need help!!!!!

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.
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Old 05-05-2013, 10:16 AM
jeepgang jeepgang is offline
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Help please
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Old 05-05-2013, 10:27 AM
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Restrorob Restrorob is offline
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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.....
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Old 05-05-2013, 01:47 PM
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Mowingman Mowingman is online now
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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.
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Old 05-05-2013, 03:00 PM
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R & R Yard Designs R & R Yard Designs is offline
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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.
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Old 05-08-2013, 09:22 PM
jeepgang jeepgang is offline
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Thanks for the help.
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Old 05-09-2013, 01:30 PM
Oldtimer Oldtimer is offline
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We work on a DynaMow from time to time. Great concept and great mower but way ahead of it's time.

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Old 05-09-2013, 09:19 PM
jeepgang jeepgang is offline
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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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