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Eureka ! Hydro ID-I think


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#1 Toolpartzman OFFLINE  

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Posted November 21, 2011 - 09:15 AM

:dancingbanana: 3 Layers of mud/oil and dirt have finally revealed the following on my '70 M12----Casting # lower pump housing: (J) ? 7090019. And Tag off the charge pump in case you cannot read it " Hydrogear", 2nd line: "Sundstrand Hydro-Transmission"
Model # 90-2068 and last, the serial # 01-KA 19939. Anyone have specs on this unit? Or anyone familiar with it ? Thankx---LeeB:worshippy1: Opps Lost1photoPB200048.jpg

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#2 ducky OFFLINE  

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Posted November 21, 2011 - 09:22 AM

I am not that up on the older Hydros.
Someone should be along shortly.

#3 Toolpartzman OFFLINE  

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Posted November 21, 2011 - 09:32 AM

Thanks Ducky. Texas Deere/Horse or olcowhand will know if they come along.----LeeB

#4 olcowhand OFFLINE  

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Posted November 21, 2011 - 10:05 AM

Hate to disappoint, but I have no specs on it at all. I've never had need to work on the one MF12H that I have. All I knew was it was Hydrogear. Wish I could tell you more. As far as specs, what are you looking for...... hp rating/pressures, etc???

#5 Toolpartzman OFFLINE  

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Posted November 21, 2011 - 10:12 AM

Yes flows/pressure etc. I've not been able to find it yet at Hydrogear or Sunstrand, but I've just started. I was under the impression that Eaton's had the finned housings, but this unit has fins all over it. The manual only refers to it as "Hydra Speed".

#6 olcowhand OFFLINE  

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Posted November 21, 2011 - 10:34 AM

Yes flows/pressure etc. I've not been able to find it yet at Hydrogear or Sunstrand, but I've just started. I was under the impression that Eaton's had the finned housings, but this unit has fins all over it. The manual only refers to it as "Hydra Speed".


When speaking of the finning, we are referring to the inline type hydro units which are variable piston to fixed piston. Your style hydro is variable piston to gear motor.
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#7 Toolpartzman OFFLINE  

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Posted November 21, 2011 - 10:59 AM

olcowhand----hummm interesting. dug a little on Sundstrand and it seems they invented variable drives for constant speed prime movers for the B36 bomber in about '46 and was an independant company up to 1999, when purchsed by a Textron group. The tag would lead to speculation that they provided the drive to Hydrogear-hence the nameplate. No wonder they're so tough.-----LeeB




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