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Hydraulic Fluid or Type A ATF??

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Horsepower View Drop Down
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    Posted: 11 Oct 2012 at 8:49am
The hydraulic reservoir on a Gleaner C2 says to use Type A transmission oil.  Considering that the combine is mid 60's vintage and 45 + years old, would a universal hydraulic oil be a suitable "modern day" substitute?  Are there certain required characteristics of Type A that would not be found in regular hydraulic oil?  If regular hydraulic oil would be suitable, are the two compatible or would the hydraulic system need to be drained and purged?  Anyone shed any light on this?  Thanks. 
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farmtoybuilder View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote farmtoybuilder Quote  Post ReplyReply Direct Link To This Post Posted: 11 Oct 2012 at 10:01am
I would leave the type A oil in it. Otherwise you would have to get all of it flushed out of lines and cylinders. Not worth the time and money to change to new oil in my opinion.
5 different TT-10's,5 TT-18's Terra Tigers,B-10,2 B-207's,B-110,2 B-112's,HB-112,B-210,B-212,HB212,2 Scamp's & Homilite T-10. Still hunting NICE HB-112 & anything Terra Tiger & Trailers for them.   
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DMiller Quote  Post ReplyReply Direct Link To This Post Posted: 11 Oct 2012 at 11:17am
Type A ATF has been replaced by listings by Dextron, I would not add universal hydraulic or any other hydraulic oil into it.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Coke-in-MN Quote  Post ReplyReply Direct Link To This Post Posted: 11 Oct 2012 at 12:13pm
Some properties of it are different and the interchange would be ill advised. Hyd fluid in itself is not the problem but if there are any clutch or other type items in the system the type A is made for those. 
 I used both type A , 10/30 oils in straight hyd systems as well as hyd oil, but in anything calling for Universal fluid I use just that. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Joe(TX) Quote  Post ReplyReply Direct Link To This Post Posted: 11 Oct 2012 at 7:46pm
The Gleaner A hydraulics will work with just about any hydraulic fluid. It has a gear or vane pump and a couple of hydraulic cylinders. You do not need tge addatives for clutchs.
1970 190XT, 1973 200, 1962 D-19 Diesel, 1979 7010, 1957 WD45, 1950 WD, 1961 D17, Speed Patrol, D14, All crop 66 big bin, 180 diesel, 1970 170 diesel, FP80 forklift. Gleaner A
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SHAMELESS Quote  Post ReplyReply Direct Link To This Post Posted: 12 Oct 2012 at 12:11am
my "G" used dextron
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DMiller Quote  Post ReplyReply Direct Link To This Post Posted: 12 Oct 2012 at 7:14pm
Before you go swinging a can of hydraulic fluid n your case, read up on type A and Dexron, they are compatible, others may not even as others have used them without issues:
 
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Horsepower View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Horsepower Quote  Post ReplyReply Direct Link To This Post Posted: 15 Oct 2012 at 8:06am

Thanks for the link to the background information of Type A and Dexron ATF fluids.  Answered a lot of questions. 

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Brian Jasper co. Ia View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian Jasper co. Ia Quote  Post ReplyReply Direct Link To This Post Posted: 15 Oct 2012 at 12:11pm
Wiki did make a mistake on Dex6. GM says it is reverse compatible will all variations of Dexron ever produced.
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