Farm Equipment - D17 power steering Ram Cylinder

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D17 power steering Ram Cylinder

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=187626
Printed Date: 13 Aug 2025 at 1:38pm
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Topic: D17 power steering Ram Cylinder

Posted By: Newmama552
Subject: D17 power steering Ram Cylinder
Date Posted: 12 Apr 2022 at 1:06pm

I bought a D17 last fall used it for a day and it started leaking power steering fluid. Thought I had it fixed and then it started to spray fluid out of the cylinder when I turn the steering wheel. Fixable or do I need to find a new part?

Replies:

Posted By: steve(ill)
Date Posted: 12 Apr 2022 at 1:15pm

"MOST" small cylinders come apart.......... and the thing that goes WRONG is the VEE rubber seals is piston seals.. They can be replaced.... 2-3 different ways those small cylinders are made on the head removal / disassemble........... I have not done a D17.... just did a CASE 530 last year.. Worked great !

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Like them all, but love the "B"s.

Posted By: steve(ill)
Date Posted: 12 Apr 2022 at 1:21pm

https://www.youtube.com/watch?v=EOp7PSx7cAc%20" rel="nofollow - https://www.youtube.com/watch?v=EOp7PSx7cAc

is this what it looks like ? Maybe i am way off base .

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Like them all, but love the "B"s.

Posted By: Gatz in NE
Date Posted: 12 Apr 2022 at 4:54pm

where is it spraying from the PS cylinder or ram ?

If it's between the endcap and cylinder tube, it's probably the o'ring seal.

http://na.apb.agcocorp.com/p/agcoallis/79001549/l/360?" rel="nofollow - http://na.apb.agcocorp.com/p/agcoallis/79001549/l/360?

There's another o'ring where the cylinder bolts to the front casting, but it's not under pressure.

Other causes;

Might be a cracked cylinder tube.

Loose or stripped fitting at the rear where the line screws on.

@steve(ill) , yep that's the one. I'd hate to pay that guy an hourly wage.

BTW, no need to remove the rack from the piston rod; that is ONE HEAVY press-fit.

Posted By: DrAllis
Date Posted: 12 Apr 2022 at 5:01pm

I have a good used cylinder with the rack I would sell if you need one.

Posted By: Newmama552
Date Posted: 16 Apr 2022 at 12:30pm

It is spraying from the end of the cylinder

Posted By: steve(ill)
Date Posted: 16 Apr 2022 at 12:47pm

so the cylinder is CRACKED ?

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Like them all, but love the "B"s.