Return-Path: Received: from mtiwmhc12.worldnet.att.net ([204.127.131.116] verified) by logan.com (CommuniGate Pro SMTP 4.3c3) with ESMTP id 820632 for flyrotary@lancaironline.net; Fri, 25 Mar 2005 18:04:47 -0500 Received-SPF: none receiver=logan.com; client-ip=204.127.131.116; envelope-from=keltro@att.net Received: from 204.127.135.59 ([204.127.135.59]) by worldnet.att.net (mtiwmhc12) with SMTP id <2005032523040111200lm74ee>; Fri, 25 Mar 2005 23:04:01 +0000 Received: from [209.247.222.100] by 204.127.135.59; Fri, 25 Mar 2005 23:04:00 +0000 From: keltro@att.net (Kelly Troyer) To: flyrotary@lancaironline.net Subject: alternators and regulators Date: Fri, 25 Mar 2005 23:04:00 +0000 Message-Id: <032520052304.6935.424498E000048AC500001B172160280651019D9B040A05@att.net> X-Mailer: AT&T Message Center Version 1 (Feb 14 2005) X-Authenticated-Sender: a2VsdHJvQGF0dC5uZXQ= MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_6935_1111791840_0" --NextPart_Webmail_9m3u9jl4l_6935_1111791840_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Found this on another site........Do not know about validity of content..... Surely one of our many talented members can tell us if it is good info !! FWIW -- Kelly Troyer Dyke Delta/13B/RD1C/EC2 Just had to say something about alternators and regulators. If you really want an education on regulators call Femi at Hazotonics, use to be his companies name. He may have changed it but it is in Trade-A-Plane. He owns the company that makes after market regulator replacements, and also repairs them. He is not Electronsonics. That company is something entirely different. He is real interesting to talk to on regulators, and anything electrical. Here is a tip if you want to catch a alternator before it eats up your regulator. Once a year grab your digital volt ohm meter. Hook it up to the aircraft DC bus system. Now don't set it to DC, set it to AC. When the alternator diodes start to break down from age, and heat they start loosing their ability to chop off the AC output from the alternator and you still get your DC current but it will have AC voltage riding on top of the DC. It is kind of cool to read it. Normally the alternator has about .1 or .2 volts AC showing on the Volt ohm meter on a brand new alternator. That's the best the diodes can do to make it a clean DC output. I have seen people put on brand new regulators, and have them destroyed in short amount of flight time due to the diodes starting to go. When the alternator diodes start to go, the AC reading jumps all over the place showing higher voltages of ac like 4, 7, 6,3, 1,2, back to one then back up again to a random number above the .1 or .3 volt range of your meter, all bad readings are over a volt in the AC range on the meter . You could also tell this if you have a Loran installed if you check the signal to noise ration in the Loran it would get so bad it would knock the Loran chain out, that you were using. Saw it on a helicopter I use to maintain. --NextPart_Webmail_9m3u9jl4l_6935_1111791840_0 Content-Type: text/html Content-Transfer-Encoding: 8bit

Found this on another site........Do not know about validity of content..... Surely

one of our many talented members can tell us if it is good info !! FWIW

--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2

Just had to say something about alternators and regulators. If
you really want an education on regulators call Femi at Hazotonics,
use to be his companies name. He may have changed it but it is in
Trade-A-Plane. He owns the company that makes after market regulator
replacements, and also repairs them. He is not Electronsonics. That
company is something entirely different. He is real interesting to
talk to on regulators, and anything electrical. Here is a tip if you
want to catch a alternator before it eats up your regulator. Once a
year grab your digital volt ohm meter. Hook it up to the aircraft DC
bus system. Now don't set it to DC, set it to AC. When the alternator
diodes start to break down from age, and heat they start loosing
their ability to chop off the AC output from the alternator and you
still get your DC current but it will have AC voltage riding on top
of the DC. It is kind of cool to read it. Normally the alternator has
about .1 or .2 volts AC showing on the Volt ohm meter on a brand new
alternator. That's the best the diodes can do to make it a clean DC
output. I have seen people put on brand new regulators, and have them
destroyed in short amount of flight time due to the diodes starting
to go. When the alternator diodes start to go, the AC reading jumps
all over the place showing higher voltages of ac like 4, 7, 6,3, 1,2,
back to one then back up again to a random number above the .1 or .3
volt range of your meter, all bad readings are over a volt in the AC
range on the meter . You could also tell this if you have a Loran
installed if you check the signal to noise ration in the Loran it
would get so bad it would knock the Loran chain out, that you were
using. Saw it on a helicopter I use to maintain.

--NextPart_Webmail_9m3u9jl4l_6935_1111791840_0--