Farm Equipment - 7040 AC

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7040 AC

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=27107
Printed Date: 27 Feb 2025 at 11:02am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 7040 AC

Posted By: golddog
Subject: 7040 AC
Date Posted: 10 Mar 2011 at 7:36pm

my 7040 is a powershift and after you run it for awhile reverse quits

Replies:

Posted By: Orange Blood
Date Posted: 10 Mar 2011 at 8:22pm

Can you be a little more specific about "quits", does it slip, or not engage at all, handle won't move, etc.

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Posted By: golddog
Date Posted: 13 Mar 2011 at 11:32am

it hesitates engaging then stops pulling but its only in low range seems to me like its in the valve body

Posted By: DrAllis
Date Posted: 13 Mar 2011 at 4:35pm

If it does it in Low range, it almost has to do it in high range and even worse in high. First of all it has to be full of oil and the dipstick is in the cab to check and add oil if needed. How many hrs are on it??? anything over 5000 hrs might dictate re-sealing of the tranny and it possibly might have broken clutch discs in the rev clutch pack which could be determined by removing the valve body and looking at the rev clutch pack.