X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 05 Mar 2012 12:32:21 -0500 Message-ID: X-Original-Return-Path: Received: from [69.84.129.244] (HELO asp.reflexion.net) by logan.com (CommuniGate Pro SMTP 5.4.4) with ESMTPS id 5428805 for lml@lancaironline.net; Mon, 05 Mar 2012 09:31:35 -0500 Received-SPF: none receiver=logan.com; client-ip=69.84.129.244; envelope-from=cberland@systems3.net Received: (qmail 32219 invoked from network); 5 Mar 2012 14:30:55 -0000 Received: from unknown (HELO mail-cs-02.app.dca.reflexion.local) (10.81.19.2) by 0 (rfx-qmail) with SMTP; 5 Mar 2012 14:30:55 -0000 Received: by mail-cs-02.app.dca.reflexion.local (Reflexion email security v6.60.3) with SMTP; Mon, 05 Mar 2012 09:30:55 -0500 (EST) Received: (qmail 9639 invoked from network); 5 Mar 2012 14:30:55 -0000 Received: from unknown (HELO remote.systems3.net) (98.172.79.178) by 0 (rfx-qmail) with (AES128-SHA encrypted) SMTP; 5 Mar 2012 14:30:55 -0000 Received: from S3SBS08SERVER.Systems3.local ([fe80::6077:364b:fa39:c71b]) by S3SBS08SERVER.Systems3.local ([fe80::6077:364b:fa39:c71b%10]) with mapi; Mon, 5 Mar 2012 07:30:54 -0700 From: Craig Berland. X-Original-To: Lancair Mailing List X-Original-Date: Mon, 5 Mar 2012 07:30:54 -0700 Subject: [LML] Field breakers popping Thread-Topic: [LML] Field breakers popping Thread-Index: Acz60uR+QDyuBgP1QAew0oJjV+Ma9wACD6yQ X-Original-Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: multipart/alternative; boundary="_000_D7A6B5700A0803448C27264F1F5387364EB0040D9FS3SBS08SERVER_" MIME-Version: 1.0 --_000_D7A6B5700A0803448C27264F1F5387364EB0040D9FS3SBS08SERVER_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Craig, a voltage spike will trip the B&C crowbar and pop the field breaker.= Since this happens when the hydraulic pumps comes on, I would look for so= mething that would cause a voltage spike in that system. Loose wiring, rel= ay going bad.... Craig Berland N7VG Dear Listers, Recently, I completed my annual and test flew the airplane. Upon lifting t= he gear both primary and secondary alternator field breakers popped. Pushe= d them back in and all charging returned to normal on the primary and secon= dary alternators. Landed, checked connections, put in a different battery, ran through B and = C voltage regulator troubleshooting guide (came out normal) and did a grou= nd run up. When lifting the flaps, hydraulic pump kicked on both field bre= akers popped again. Right now I am assuming it is the voltage regulator (b= oth pri and sec are B and C), alternator , or a connector. Anyone have similar issues and can recommend the next course of action? Thank you, Craig Gainza IV-P TSIOF 550 782 hours and holding --_000_D7A6B5700A0803448C27264F1F5387364EB0040D9FS3SBS08SERVER_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Craig, a = voltage spike will trip the B&C crowbar and pop the field breaker. = ; Since this happens when the hydraulic pumps comes on, I would look for so= mething that would cause a voltage spike in that system.  Loose wiring= , relay going bad….

= Craig Berland

N7VG

 

=

Dear Listers,

Recently, = I completed my annual and test flew the airplane.  Upon lifting the ge= ar both primary and secondary alternator field breakers popped.  Pushe= d them back in and all charging returned to normal on the primary and secon= dary alternators. 

Landed, checked connections, put in a diffe= rent battery, ran through B and C voltage regulator troubleshooting guide (= came out normal)  and did a ground run up.  When lifting the flap= s, hydraulic pump kicked on both field breakers popped again.  Right n= ow I am assuming it is the voltage regulator (both pri and sec are B and C)= , alternator , or a connector.

Anyone have similar issues and can re= commend the next course of action?

Thank you,

Craig GainzaIV-P TSIOF 550
 782 hours and holding


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