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captaindana 
Orange Level
Joined: 14 Sep 2009
Location: Fort Plain, NY
Points: 2494
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 Topic: D19 power steering
Posted: 30 Mar 2011 at 6:03pm |
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question that I keep meanin' ta ask and keep forgetting. Can I use ATF? Is that better than hydraulic fluid? Thanks, Dana
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DrAllis
Orange Level Access
Joined: 12 Sep 2009
Points: 21060
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Posted: 30 Mar 2011 at 6:37pm |
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Use modern day universal hyd fluid.......less leaks and it just works better because it's thicker viscosity.
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Hurst
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Joined: 11 Sep 2009
Location: Midway, Ky
Points: 1213
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Posted: 30 Mar 2011 at 7:22pm |
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For our Fords, which take hydraulic fluid for the powersteering, we have always used ATF just so it is easy to distinguish if it starts leaking, because the sump is so small and that pump burns up so easily... I see red drops on the ground where one of them sat the night before, I know I need to go chase it down and get it to the shop. So yes, it is fine to use in Power Steering pumps, just costs a bit more, but comes in small bottles too (another plus).
Hurst
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1979 Allis Chalmers 7000
5800 Hours
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Brian Jasper co. Ia
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Joined: 11 Sep 2009
Location: Prairie City Ia
Points: 10508
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Posted: 30 Mar 2011 at 7:22pm |
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Follow the Dr's orders, but it does say in the original D17 service manual to ask the owner what he has been using. It could have hydraulic fluid, Dexron ATF, or SAE 10 motor oil.
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"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford
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Butch(OH)
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Joined: 11 Sep 2009
Location: Lucerne Ohio
Points: 3835
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Posted: 30 Mar 2011 at 8:33pm |
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We ended up with everything rebuilt in ours when chasing down the oil foaming problem, which by the way was the pump shaft seal. And when everything is up to snuff 10W or AW32 works great and cold steering effort is much less and responce is quicker than with universal tractor fluid. But as the Dr said when things are worn the tractor fluid helps out with the assist when it's important, warm oil.
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