8070 p/s slow reverse
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=45102
Printed Date: 11 Sep 2025 at 12:47pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 8070 p/s slow reverse
Posted By: cowkicker
Subject: 8070 p/s slow reverse
Date Posted: 06 Feb 2012 at 6:24pm
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I have a 8070 p/s that is extremely slow engaging reverse. Wnen you first put it in reverse you can feel it trying to move and sometimes if you are on level ground it will creep ever so slowly. When it does completely engage there is no slipage at all. Sometimes it seems, (might just be my imagination) that if you rev the engine up and then slow it down quickly it will engage sooner. All other gears seems fine. Anybody have any suggestions? Thanks!
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Replies:
Posted By: DrAllis
Date Posted: 06 Feb 2012 at 7:06pm
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Until you connect gauges on the reverse clutch and the inching clutch for reverse and come up with some pressure readings, there's not much anyone can tell you. I'd guess you have 4,000 plus hrs on it and it's starting to show it's age. Make sure the clutch pedal comes all the way to the top and the inching spool is pushed all the way in (within .030" of bottoming) when the pedal is up. Acts up much more in High range than low range, right??
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Posted By: Brad(WI)
Date Posted: 06 Feb 2012 at 7:21pm
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our 7045 did that for a while. Eventually it stopped moving forward too! Mighy want to look into it soon.
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Posted By: Orange Blood
Date Posted: 06 Feb 2012 at 7:41pm
Our 7060 p/s did that once, and it was in the inching clutch. Been a long time, not exactly sure what it was, but pretty sure it was in the valve.
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Posted By: cowkicker
Date Posted: 06 Feb 2012 at 8:15pm
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It is a 9000 hr, loader tractor, abused daily until retirement last year. Thought I might get the trans problem worked out if it was something simple and use it as sprayer tractor.
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Posted By: MACK
Date Posted: 06 Feb 2012 at 9:51pm
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If you take off with no load it will take off ok and will never slip or as soon as it moves 3 foot it is ok. (RIGHT) MACK
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