X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 22 Mar 2010 14:24:12 -0400 Message-ID: X-Original-Return-Path: Received: from smtpauth23.prod.mesa1.secureserver.net ([64.202.165.47] verified) by logan.com (CommuniGate Pro SMTP 5.3.4) with SMTP id 4174671 for lml@lancaironline.net; Mon, 22 Mar 2010 13:14:07 -0400 Received-SPF: none receiver=logan.com; client-ip=64.202.165.47; envelope-from=jsabot@oxforditconsult.com Received: (qmail 6913 invoked from network); 22 Mar 2010 17:13:31 -0000 Received: from unknown (66.159.155.121) by smtpauth23.prod.mesa1.secureserver.net (64.202.165.47) with ESMTP; 22 Mar 2010 17:13:31 -0000 From: "Jay M. Sabot" X-Original-To: "'Lancair Mailing List'" X-Original-Cc: "Joe Gauthier" , , "'Jabe Luttrell'" References: Subject: RE: [LML] Re: Legacy Inner Gear Door Chatter X-Original-Date: Mon, 22 Mar 2010 13:13:11 -0400 X-Original-Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_004A_01CAC9C1.6CB6F080" X-Mailer: Microsoft Office Outlook 11 In-Reply-To: Thread-Index: AcrJykfh4UvIX1boQo6c7AFofBXViQAF9/+A X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 This is a multi-part message in MIME format. ------=_NextPart_000_004A_01CAC9C1.6CB6F080 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Thanks Jim! This sounds exactly like my problem! I will try disconnecting the outer gear doors just to see if it fixes the problem, then adjust them looser. Or, I guess I could also adjust the sequence valve a bit lower as well perhaps?? Jay _____ From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Jim Thomas Sent: Monday, March 22, 2010 10:16 AM To: lml@lancaironline.net Subject: [LML] Re: Legacy Inner Gear Door Chatter Jay, I experienced the same problem when I had adjusted the outer door attached to the landing gear too tight. What was happening was the gear would retract and activate the sequence valve, but the outer door would add some pull down force on the gear because it was adjusted too tight. As the hydraulic pressure dropped due to the opening of the sequence valve, the outer door would pull the strut down just a bit, thus closing the sequence valve. Once the sequence valve was closed hydraulic pressure was shut off to the inner gear door stopping its motion and the gear strut would retract. As the gear pulled up tight the sequence valve would open, starting the cycle all over again. The symptom is that the inner gear door closes with a jerky motion. By lengthening the outer gear door links just a bit, the problem went away. Jim Thomas Legacy with 300 hours ------=_NextPart_000_004A_01CAC9C1.6CB6F080 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Thanks Jim! =

 

This sounds exactly like my = problem! I will try disconnecting the outer gear doors just to see if it fixes the problem, then adjust them looser. Or, I guess I could also adjust the = sequence valve a bit lower as well perhaps??

 

Jay

 

 

 

 

From: = Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Jim Thomas
Sent: Monday, March 22, = 2010 10:16 AM
To: = lml@lancaironline.net
Subject: [LML] Re: Legacy = Inner Gear Door Chatter

 

Jay,

 

I experienced the same problem when I had = adjusted the outer door attached to the landing gear too tight.  What was happening was the gear would retract and activate the sequence valve, = but the outer door would add some pull down force on the gear because it was = adjusted too tight.  As the hydraulic pressure dropped due to the opening = of the sequence valve, the outer door would pull the strut down just a bit, = thus closing the sequence valve.  Once the sequence valve was closed hydraulic pressure was shut off to the inner gear door stopping its = motion and the gear strut would retract.  As the gear pulled up tight = the sequence valve would open, starting the cycle all over = again.

 

The symptom is that the inner gear door = closes with a jerky motion.  By lengthening the outer gear door links just a = bit, the problem went away.

 

Jim Thomas

Legacy with 300 = hours

 

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