Farm Equipment - Replace fuel sender on 7040

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Replace fuel sender on 7040

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=202491
Printed Date: 10 Nov 2025 at 5:07am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Replace fuel sender on 7040

Posted By: jazzsuds
Subject: Replace fuel sender on 7040
Date Posted: 29 Jul 2024 at 7:20pm

Hi folks
Can someone tell me in detail steps how to replace the fuel sender on my 7040?
Thanks

Replies:

Posted By: Lynn Marshall
Date Posted: 29 Jul 2024 at 10:03pm

Get the floor mat moved out of the way in the front left corner of the cab. There's an access hole cover there that just pops up with screwdriver. Clean the area well. Remote the small nut that has the signal wire on it. Now remove the screws that hold the sender in the tank. One of them has the ground wire on it. The sender can now be taken out the top. You have to gently bend the float rod a little bit for it to come out. Assemble in reverse order. The float rod will need to be bent some on a new sender and then straightened back once you get it into the tank hole. The sender screw holes and gasket are offset enough so that it will only line up one way.

Posted By: jazzsuds
Date Posted: 30 Jul 2024 at 11:54am

Thanks Lynn. My tractor has no cab and no floor trap door to access. Its just a steel floor and it appears i have to remove it to get to the fuel tank top