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Felix 
Bronze Level
Joined: 04 Apr 2025
Location: Hawkeye IA
Points: 3
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 Topic: New to me D-17 series 1 hydro issues
Posted: 07 Apr 2025 at 3:59pm |
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What type of hydro fluid do you all use?
Mine appears to have gotten water in it and is grey as a battleship.
Having issues with the pump also. It’s pushing air when I crack the hose at the end. Any suggestions would be much appreciated. TIA
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waldersha
Bronze Level
Joined: 30 Sep 2013
Location: Kansas
Points: 47
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Posted: 07 Apr 2025 at 4:06pm |
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I use the universal hydraulic oil from TSC. I’d probably start with a drain and refill and then figure out if you still have a pump problem but others may have a more informed opinion.
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Felix
Bronze Level
Joined: 04 Apr 2025
Location: Hawkeye IA
Points: 3
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Posted: 07 Apr 2025 at 5:56pm |
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Thank you
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WF owner
Orange Level
Joined: 12 May 2013
Location: Bombay NY
Points: 5059
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Posted: 07 Apr 2025 at 6:03pm |
I use a hydraulic fluid that meets 821 specs in all my tractors, simply so I only have to keep one jug in stock. It's a little more expensive, but easier.
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AC720Man
Orange Level
Joined: 10 Oct 2016
Location: Shenandoah, Va
Points: 5250
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Posted: 07 Apr 2025 at 7:41pm |
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From the rear hydraulic fitting? Confused about where you seeing these air bubbles from. I use Fram in a 5 gal bucket from Carquest, 821 approved.
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1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD
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steve(ill)
Orange Level Access
Joined: 11 Sep 2009
Location: illinois
Points: 88607
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Posted: 07 Apr 2025 at 8:43pm |
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any "good quality" hydraulic / transmission fluid would be fine.. There should be a list on the bucket of what "SPECS" it meets... If it has no spec, dont buy it.. If it is GOOD OIL it will have 10 - 30 specs listed... CAT, IH, CASE, AC, FORD... etc.
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Like them all, but love the "B"s.
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