Farm Equipment - AC 7040

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AC 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=16925
Printed Date: 05 Feb 2025 at 2:00pm
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Topic: AC 7040

Posted By: combine pilot
Subject: AC 7040
Date Posted: 21 Aug 2010 at 7:27am

I have a AC 7040.I am having problems with the Power stering, it always pulls hard to one side. I have tryed bleediing the system and replacing filters. Has anyone had this problem befpore? if so what do I need to fix it?

Replies:

Posted By: DrAllis
Date Posted: 21 Aug 2010 at 8:00am

If the steering "effort" is higher when turning to the right, I'd guess the flow divider/priority spool is stuck in the power steering pump OR the steering pump itself has some internal issues. I assume all other hydraulic functions work correctly?? and I also assume the front spindles have been thoroughly greased??

Posted By: combine pilot
Date Posted: 21 Aug 2010 at 11:51pm

Yes, the front spindles have been greased thoroughly. All other hydraulics work perfect. I will give the diverter/priority spool a look. What it does is turns to the right (if you let go of the steering)and hard (nearly impossible)to get it back straight. Was a real challenge to drive it 4 miles down the rode to get it home from the feild. Thanks for the advise.