Return-Path: Sender: (Marvin Kaye) To: lml Date: Tue, 20 May 2003 07:31:40 -0400 Message-ID: X-Original-Return-Path: Received: from imo-m03.mx.aol.com ([64.12.136.6] verified) by logan.com (CommuniGate Pro SMTP 4.1b6) with ESMTP id 2355891 for lml@lancaironline.net; Tue, 20 May 2003 05:44:11 -0400 Received: from TByrnes133@aol.com by imo-m03.mx.aol.com (mail_out_v34.22.) id q.17b.1a8ae2ac (4394) for ; Tue, 20 May 2003 05:44:08 -0400 (EDT) From: TByrnes133@aol.com X-Original-Message-ID: <17b.1a8ae2ac.2bfb52e8@aol.com> X-Original-Date: Tue, 20 May 2003 05:44:08 EDT Subject: Re: [LML] LN360 Alternator breaker popping on gear up/down ops X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: 7.0 for Windows sub 10637 Charles I had a problem on my Lancair IV with the field breaker popping about once or twice a flight for no apparent reason. After much trouble shooting, including wiring and the alternator, I found out from Vern at Lancair that B& C had a modification for the LR-3 Regulator and that I should call them. They explained that it was caused by the crow bar circuit sometimes detecting noise on the voltage sense wire and interpreting it as over voltage. They modified the regulator free and suggested that I get the voltage sense signal from nearby in the engine compartment to minimize the chance of noise on the wire. I ran a wire from the master relay to the regulator and that combined with their modification fixed the problem. If you run a separate wire from the master relay IT MUST BE PROTECTED WITH A VERY SMALL INLINE FUSE. I used a 1/4 amp in line fuse. Tom Byrnes Lancair IV N54TB