Farm Equipment - 7040 Question

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7040 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=56240
Printed Date: 07 Sep 2025 at 4:39pm
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Topic: 7040 Question

Posted By: Lynn TN
Subject: 7040 Question
Date Posted: 02 Sep 2012 at 3:48pm

The transmission pressure above 1800 rpm light has got a little slow to go off, it use to go off a little above idle but now has to be sped up wandering what could cause this, do the filters need to be changed?

Replies:

Posted By: GM Guy
Date Posted: 02 Sep 2012 at 4:25pm

if it is a power director (manual shift) the only filter on that circuit is the spin-on on the left frame rail, IIRC. there might be a coarse screen on the pickup tube as well. if your fluid is clean, maybe just change the filter.

good luck!

Posted By: ryan(IN)
Date Posted: 02 Sep 2012 at 5:21pm

If its a pd there is no spin on filter I don't think. I could be wrong. Could just be a sender issue.

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ryan
1984 8070 FWA,1979 7060,1975 7040,1971 190,1960 D-17D,1957 D-14, 196? D-19G, 1975 5040,1971? 160,1994 R62

Posted By: Lynn TN
Date Posted: 02 Sep 2012 at 7:36pm

It is a PD I looked and cant see the number of the spin on filter does anyone have that number so NAPA can cross it over, and do you check that oil in the cab floor or on the back end? Does it take the same hydraulic fluid for both of these? Just checking going to change spin on tomorrow if I can find one, needing tractor to pull Grain cart next week

Posted By: Jordan(OH)
Date Posted: 02 Sep 2012 at 8:37pm

As long as it is off above 1800 rpm you are ok. Thats why it says above 1800

Posted By: Lynn Marshall
Date Posted: 02 Sep 2012 at 9:29pm

Agco #70267600--Napa#1830.Transmission oil goes in cab,under the seat.Same type of oil in the tranny and rear end (hydraulics).