Removing the pivot pin for the hydraulic piston
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=169732
Printed Date: 03 Feb 2025 at 7:03am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Removing the pivot pin for the hydraulic piston
Posted By: djake
Subject: Removing the pivot pin for the hydraulic piston
Date Posted: 02 Apr 2020 at 4:44pm
| I am confused on how to remove the pivot pin securing the hydraulic piston for the lift arms on my D17. The manual says to remove the pointed bolt on the bottom of the right brake unit. I did that. The bolt is 1/2 inch that I can tell. Then I'm supposed to thread in a standard 1/2 bolt or shaft 8 inches long to remove the pin. I do that and it just bottoms out in the hole and does nothing. There must be something more to it. |
Replies:
Posted By: MACK
Date Posted: 02 Apr 2020 at 9:39pm
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I suppose you have the lift arm housing off? The pin should be threaded but may be full of dirt + brake rod may be in the way. Drive it out from inside out. . MACK |
Posted By: Brian G. NY
Date Posted: 03 Apr 2020 at 11:48am
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Those instructions sure do leave a lot to be desired. The way I read them, after you remove the "pointed setscrew", you then insert the 8" rod in through the access hole on the RH side of the brake housing just above where you removed the setscrew. I plugged that hole on my tractor to keep out the critters who like to live there. The pivot pin for the ram is much larger than 1/2" but is tapped with 1/2" threads into which you screw the 8" bolt which enables you to then pull that large pin and release the ram. Then.......you will be able to remove the lift arm housing. Now.......I haven't done this yet so I am not speaking from experience but I am going to have to at some point as either the hose or ram is leaking some on my D-17 Series II. I hope my interpretation is correct.......I have, on occasion, posted stuff on here that was not totally correct. LOL
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Posted By: MACK
Date Posted: 03 Apr 2020 at 10:02pm
| You need to remove lift arm housing first. The piston will pull out of barrel with lift arm housing. MACK |
Posted By: Brian G. NY
Date Posted: 04 Apr 2020 at 10:14am
Interesting idea......not what the book says but it certainly looks like it will work. Maybe an A-C tech's shortcut? Probably need about 3 hands to put it back together that way.  |
MACK wrote:Posted By: Alvin M
Date Posted: 04 Apr 2020 at 10:30am
| Mack That Is The Way I Have Don Them For Years No Need To Pull The Pin Alvin M |
Posted By: Brian G. NY
Date Posted: 04 Apr 2020 at 11:51am
Except.......probably the reason you're going through all of this work is that you are going to repair the cylinder or replace the hose! Then, you might want to remove the pin. Granted, you probably wouldn't bother to use that 8" 1/2" bolt since you are now right in there where the pin is.
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