Farm Equipment - Charging System

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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=38352
Printed Date: 09 Sep 2025 at 4:31am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Charging System

Posted By: Tom Miller (IA)
Subject: Charging System
Date Posted: 03 Oct 2011 at 9:32pm

Would it be possible to set up a WD-45 for a 6 volt charging and 12 starting system? I have a hard starting WD-45 but have a working 6 volt generator!

Replies:

Posted By: Orange Blood
Date Posted: 03 Oct 2011 at 9:38pm

Well, they were all orriginally 6 volt systems, the starter just happens to be tough enough, and not typically used that much to burn it up. If you are having problems, with cranking speed, make sure ALL battery connections are good, clean, and tight. Also make sure your battery cables are the correct size, not some aftermarket cheap autozone pencil sized replacement. In theory to get the same effort out of the same starter all other things being equal, a 6 volt will have to flow twice the current of a 12 volt starter to put out the same mechanical force. So, on a 6 volt system, everything needs to be in top shape, or the thing will spin slow.

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Still in use:
HD7 WC C CA WD 2-WD45 WD45LP WD45D D14 3-D17 D17LP 2-D19D D19LP 190XTD 190XTLP 720 D21 220 7020 7030 7040 7045 3-7060
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