Farm Equipment - 7040 maroon belly shifter

Print Page | Close Window

7040 maroon belly shifter

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=150626
Printed Date: 07 May 2024 at 11:47am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 7040 maroon belly shifter

Posted By: 7040
Subject: 7040 maroon belly shifter
Date Posted: 20 May 2018 at 7:20am

Periodically my 7040 will get stuck in two gears when shifted. It seems to happen less when shifted at low rpm. Yesterday it happened again and I pulled shifter realigned and put back together.unit works properly again. My question is to my untrained eye's I'm not seeing what is worn allowing this to happen. Just curious if there is possibly an easy fix. I don't feel I'm being overly aggressive and I've ran this style of ac for thirty some years.
Thanks in advance for any help.

Replies:

Posted By: DrAllis
Date Posted: 20 May 2018 at 9:03am

I assume you are talking the floor shifter ???? I've never had one ever bother with what you are experiencing. I'd have to look into the shifter hole to determine if there's any extra space/gaps created and remove the cover itself and see if it can be addressed. My guess is there's a setscrew loose?? or a certain part that was never made quite correctly and now in its old age is causing trouble.

Posted By: 7040
Date Posted: 20 May 2018 at 9:37am

Yes the floor shifter. When it happens I remove metal dust cover then a snap ring and pull shifter up and out. Realign with a screw driver or punch. Reinstall shifter and it works properly again. It doesn't happen Alot but has happened several times. This is the only maroon belly I have experienced this on.

Posted By: 7040
Date Posted: 20 May 2018 at 9:47am

One more note I can make is it's only when shifting from 2nd or 3rd to 4th.or 2ND or 3rd to 1st/reverse. And when it happens shifter will not move at all and neither will tractor. I probably schould not say stuck in two gears more stuck between gears tractor acts like it's in neutral but doesn't roll or bog down engine when clutch is let out

Posted By: DrAllis
Date Posted: 20 May 2018 at 10:00am

In theory, if the shift cover has all the interlock pins installed and working properly, there's no way to actually get it into two gears at once. Only one shift rail can move out of the neutral position at a time. The other two shift rails cannot move when the other one is moved first.

Posted By: MACK
Date Posted: 20 May 2018 at 8:52pm

Sounds like a worn out old WD45. I'm older than Dr. And I have never saw that happen either. They have been a bullet proof shifter. MACK