AC 6040 lift going up on it's own
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=202428
Printed Date: 16 Sep 2024 at 3:19pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: AC 6040 lift going up on it's own
Posted By: DanT
Subject: AC 6040 lift going up on it's own
Date Posted: 24 Jul 2024 at 6:17pm
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I just got this tractor on a trade, the Piston that raises the lift arms was in a box and came with the tractor. The tractor ran fine everything works good except for the lift. He told me that he tried to fix it but after he put new seals on the piston when he started the tractor, the arms went all the way up and crack the top of the Piston housing so he took the Piston out and it's been in a box ever since. I thought I would see if I could get it back to working cleaned everything as best I could put new seals on the piston new o rings where I found them and just as he said arms went up on their own to the point of the Piston being in a bind against the housing both levers were in the down position. Also after shutting the tractor off the lift will not lower. Any ideas? |
Replies:
Posted By: DanT
Date Posted: 25 Jul 2024 at 8:46am
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Posted By: DrAllis
Date Posted: 25 Jul 2024 at 3:31pm
| Never worked on a 6040 in that area. Generally speaking, the lifting system has feed-back linkage to see to it that cannot happen. I'm sure it worked fine until it was taken apart, the linkage didn't get assembled correctly and now we have a broken housing. When you pull up on the 3-point lever the hitch only goes up in relation to where the lever is. Half-way up on the lever and the hitch goes half-way up and stops, etc, etc. |
Posted By: DanT
Date Posted: 25 Jul 2024 at 5:55pm
| Thanks for the feedback, I plan tearing it down and looking at all the linkage. I feel like you're spot on, I don't see why else it should have over extended like that. |