7020 3 Point 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=139872
Printed Date: 17 Aug 2025 at 10:11pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 7020 3 Point Issues
Posted By: Basehorhawk
Subject: 7020 3 Point Issues
Date Posted: 28 Jun 2017 at 10:14am
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I'm the same one that had the PTO issues, Diff lock issues, etc. PTO issue was resolved which did not resolve the diff lock pedal always engaging itself. Following repair of PTO and getting pressures up to where they needed to be, it engages, stays put, and will run the baler with no issues. New issue is the 3 point will come up fine but will only go down slowly. It's really not that big of an issue as it will go from the highest position to the lowest in about 10 seconds and I can proceed with the task at hand. In reading previous threads, it was said that in the 3 point "pump" I guess i'll call it, the lower piston sometimes locks up and needs to be tapped to get loose, but I believe that was on the 7010 and smaller. Is there something I can do to get the 3 point back to normal? It's not nearly as pressing an issue as the PTO not working, but an issue none the less. And to throw a little bigger wrench into my question, when operating the shorter remote lever, it will sometimes actually raise the 3 point a little. Not sure if it has something to do with the traction lever, etc. Appreciate any help in advance.
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Replies:
Posted By: Basehorhawk
Date Posted: 28 Jun 2017 at 10:15am
| More info, it is a 78 7020 black belly PS with around 5900 hours. |
Posted By: DrAllis
Date Posted: 28 Jun 2017 at 11:59am
| Engine more than dead idle and COLD hyd oil with nothing on the hitch?? They don't come down very fast without a load on them as a rule. |
Posted By: Basehorhawk
Date Posted: 28 Jun 2017 at 12:06pm
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You are correct Doc. Had only been running for a minute or so with no load on it. I do believe it was up around 2500 RPMS as I was cycling the baler (another issue that the service tech couldn't figure out but I resolved by looking at a picture on purplewave auction site, but thats a different frustration), to verify it was working. Didn't know if it was really an issue but now with the recent problems I think i'm just looking for more  ). Going to hook up the 3 point disc mower tonight and i'll let you know if it is normal. thanks again.
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