Farm Equipment - D17 Power steering issue

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D17 Power steering issue

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=206685
Printed Date: 13 May 2025 at 12:47am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: D17 Power steering issue

Posted By: CTALLIS
Subject: D17 Power steering issue
Date Posted: 12 May 2025 at 3:34pm

Have a D17 Series 2.

Power steering not working as it should. Sometimes it steers like a mule to the left, other times its ok.

The fluid foams and if I try to fill it it comes out the breather.

put 5w 20 oil in it.

any help would be great.

thank you

Replies:

Posted By: AC720Man
Date Posted: 12 May 2025 at 8:16pm

Wide front or narrow front? I run 821 Hydraulic oil in my series 1 narrow front. I would drain the system and replace the oil if you haven't already done so. Fill only to cover the gears, you may be over filling it? Check the breather and make sure it is clean so it functions properly.

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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: DrAllis
Date Posted: 12 May 2025 at 10:57pm

5W-20 is engine oil, correct ??? Engine oil could have a foaming effect that the proper type of HYDRAULIC oil doesn't have. Has the problem surfaced when changing to this 5W-30 oil?? if so, drain it and get Hytran/HyGard or AGCO 821 oil in there and just cover the gears with fluid. Any fuller than that and it will vomit out the excess.