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Date:   Tue, 9 Apr 2013 09:41:54 -0400
Reply-To:   David Beierl <dbeierl@ATTGLOBAL.NET>
Sender:   Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:   David Beierl <dbeierl@ATTGLOBAL.NET>
Subject:   Re: Heater fan CHIRP!
Comments:   To: Mike Bucchino Sr <mbucchino@CHARTER.NET>
In-Reply-To:   <924C565C-E4C7-4EDA-89CA-8400759CABE7@charter.net>
Content-Type:   text/plain; charset="us-ascii"; format=flowed

At 08:18 AM 4/9/2013, Mike Bucchino Sr wrote: >A "loud motor type sound" can be the brushes riding against a >poorly-machined commutator. It will either cause the softer carbon >brushes to wear out faster, or the harder copper commutator sectors >to eventually smooth over and quiet down. You can dress a >commutator , if that's the case, but it has to be done very >carefully and properly.

Too long ago for me to remember with clarity...that's conceivable although I don't think so. But dressing it would be next to impossible, not an option for the average user.

Yours, David


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