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New to me D-17 series 1 hydro issues

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=206211
Printed Date: 16 Apr 2025 at 6:28pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com


Topic: New to me D-17 series 1 hydro issues
Posted By: Felix
Subject: New to me D-17 series 1 hydro issues
Date Posted: 07 Apr 2025 at 3:59pm
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



Replies:
Posted By: waldersha
Date Posted: 07 Apr 2025 at 4:06pm
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.


Posted By: Felix
Date Posted: 07 Apr 2025 at 5:56pm
Thank you


Posted By: WF owner
Date 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.



Posted By: AC720Man
Date Posted: 07 Apr 2025 at 7:41pm
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


Posted By: steve(ill)
Date Posted: 07 Apr 2025 at 8:43pm
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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