Farm Equipment - 7020 charging system

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7020 charging system

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=12732
Printed Date: 31 Jan 2025 at 5:52pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 7020 charging system

Posted By: mnjoe
Subject: 7020 charging system
Date Posted: 20 May 2010 at 7:57pm

My 7020 alternator light started to glow dimly this afternoon. Checked voltage..was 11 volts. Checked batteries some dead cells and others low on water. They have been giving me problems. Went to NAPA to get 2 new ones. Now my light stays off till I speed up the motor. Voltage is 13. Is my alternator also bad/ Thanks mnjoe

Replies:

Posted By: Hurst
Date Posted: 20 May 2010 at 9:05pm

Check the ground on the alternator. If that is good, go to the auto store and get a $10 rebuild kit for a delco 10si and put in new brushes and a regulator with new bearings. I did that this past summer to my 7000. Does your 7020 have a delco? If not, then disregard the rebuild part.

Hurst

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1979 Allis Chalmers 7000
5800 Hours