Farm Equipment - 5040 hydraulic question?

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5040 hydraulic question?

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=39900
Printed Date: 18 Jul 2025 at 7:19am
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Topic: 5040 hydraulic question?

Posted By: bigwally2
Subject: 5040 hydraulic question?
Date Posted: 01 Nov 2011 at 8:30pm

hey everyone,i have an ac 5040 and my mechanic is beginning to overhaul the hydraulcs,apparrently there was much water in with the fluid.well,found a used control unit from wengers in pa.,im in nj,and am about to order new sleeve liner,gaskets and o rings....it seems the mystry part to locate is a 4 inch or so o ring that goes with the gasket between the control unit and the piston assembly....im about as green as you can get when it comes to hydraulics,if anyone has an idea where i might locate this o ring,i would greatly appreciate the help..........on a side note,since the trans and hydraulics share the same fluid how sound would i expect the trans to remain if water is in the mix,might it settle to the bottom? or am i embarking on an odessey....im only about 2700 into this tractor over 3 years,deisel,never let me down,ill be about 500 in parts on the hydraulics,was ok with a bottom plow but now that i got a bush hog the lift was bouncing like crazy so it was time to open it up

Replies:

Posted By: Jeff Z. NY
Date Posted: 02 Nov 2011 at 7:47am

Go to the AGCO Online Parts Books and find the number for the part and call an AGCO dealer to see if it is an available part.
It should be.

http://www.agcopartsbooks.com/PartsBooksN/login.aspx?region=NorthAmerica

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