Farm Equipment - D-10 s III

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D-10 s III

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=18498
Printed Date: 07 Feb 2025 at 3:18am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: D-10 s III

Posted By: Dusty MI
Subject: D-10 s III
Date Posted: 20 Sep 2010 at 1:43pm

My D-10 has a 12 volt system on it, the generator was changed to a 1 wire alternator with a 3 pole ignition switch. The switch was giving problems so I changed it to a 2 pole switch and added a diode. It bleeds about 2.25 volts, draining about .04 volts a day from the battery, Why?

Dusty

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917 H, '48 G, '65 D-10 series III "Allis Express"

Replies:

Posted By: pineyjd
Date Posted: 21 Sep 2010 at 3:25am

Are your gauges shutting off

Posted By: Dusty MI
Date Posted: 21 Sep 2010 at 6:35am

Yes. The diode is part of the plug that plugs the wire into the alternator. If I unplug it the 2.25 volt drain goes away. Or if I pull the alternator wire off the ignition switch the 2.25 volt drain stops.

Dusty

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917 H, '48 G, '65 D-10 series III "Allis Express"

Posted By: Dusty MI
Date Posted: 21 Sep 2010 at 7:06am

I took my meter and the new harness back in to where I got it. They got another one off the shelf. They both tested the same. I went to an auto parts and got another alternator, put it on, still had the drain.

I took the alternator back.

Dusty

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917 H, '48 G, '65 D-10 series III "Allis Express"