Farm Equipment - 7020 hydraulic oil from trans to rear

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7020 hydraulic oil from trans to rear

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=197386
Printed Date: 25 Sep 2024 at 3:36am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 7020 hydraulic oil from trans to rear

Posted By: BillinAlberta
Subject: 7020 hydraulic oil from trans to rear
Date Posted: 26 Sep 2023 at 7:06pm

Well the engine is runnung fine(more on a seperate post)but the oil is going fast into the rear case and out of the transmission .According to the manual there are 2 areas to look at.

Pump is out and I have ordered the seal that is recommended to change but the seal that is there LOOKS not too bad.It will get replaced.

The book also recommends pulling the range shift cover and sealing up the core plug.I have gone through that manual and can't find a location for the Range Shift Cover.Is the cover(aluminum)on the right side with all the levers and valves under the batteries the right one?If I remove it are there any special precautions ? It looks like it might be a nightmare if not done properly.

I really appreciate all the advice given on here.Hopefully my "Big Al" will run again.

Replies:

Posted By: DrAllis
Date Posted: 26 Sep 2023 at 7:48pm

Going fast, as in how fast ?? Last time I heard about something like this, the oil cooler/radiator area had been worked on and two hoses got reconnected wrong.

Posted By: BillinAlberta
Date Posted: 26 Sep 2023 at 10:22pm

I just ran outside in my pj's and checked.You could be right.I will have to check tomorrow.

Yes I changed engines and those lines were off.

Posted By: Lynn Marshall
Date Posted: 27 Sep 2023 at 7:37am

The aluminum cover is the power shift valve body. The range cover is further back behind the small fuel tank. I don't think that is your problem.