Farm Equipment - 7040 power director transmission will not drive

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7040 power director transmission will not drive

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=204862
Printed Date: 03 May 2025 at 8:12am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 7040 power director transmission will not drive

Posted By: Dock
Subject: 7040 power director transmission will not drive
Date Posted: 07 Jan 2025 at 5:14pm

I have a 7040 that pulled it out of shed this morning loaded feed wagon and it would not move again. It has been cold about 10deg this morning. Transmission oil pressure light is on at all rpms. Shift lever will freely go into all gears in both ranges with clutch pedal released. Both transmission and diff oil levels are good. I ordered a service manual but wondering if there could be something simple that I'm missing. Clutch spool sticking??? I don't know a whole lot about this transmission so kinda going in blind. Any advice would be appreciated.

Replies:

Posted By: DrAllis
Date Posted: 07 Jan 2025 at 5:36pm

Power steering works ?? or not

Posted By: Dock
Date Posted: 07 Jan 2025 at 5:59pm

Yes, a little hard but oil had cooled before i tried it, I know the hydraulics work as well as the pto.

Posted By: DrAllis
Date Posted: 07 Jan 2025 at 6:37pm

If the 1800 light is on all the time, either it is very low on oil on the cab dipstick or I'd guess the transmission gerotor pump has failed or its screen is plugged.

Posted By: Dock
Date Posted: 07 Jan 2025 at 6:52pm

Ok, thank you. The pump is the first in the stack (to the rear of the tractor) on the lower rh side of the machine? And the cover for the screen is on the bottom with 8 or 10 bolts?

Posted By: DrAllis
Date Posted: 07 Jan 2025 at 9:13pm

Yes and yes.

Posted By: Mikez
Date Posted: 07 Jan 2025 at 9:40pm

Welcome to the forum.

Goodluck