X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 10 Jul 2006 02:23:15 -0400 Message-ID: X-Original-Return-Path: Received: from vms048pub.verizon.net ([206.46.252.48] verified) by logan.com (CommuniGate Pro SMTP 5.1c.2) with ESMTP id 1230065 for lml@lancaironline.net; Sun, 09 Jul 2006 20:38:54 -0400 Received: from ieee.org ([71.110.173.7]) by vms048.mailsrvcs.net (Sun Java System Messaging Server 6.2-4.02 (built Sep 9 2005)) with ESMTPA id <0J2500D4SWGRYVH0@vms048.mailsrvcs.net> for lml@lancaironline.net; Sun, 09 Jul 2006 19:38:52 -0500 (CDT) X-Original-Date: Sun, 09 Jul 2006 17:41:01 -0700 From: "Charles R. Patton" Subject: Sticky landing gear and brake hydraulics X-Original-To: Lancair Mailing List Reply-to: charles.r.patton@ieee.org X-Original-Message-id: <44B1A21D.5020809@ieee.org> MIME-version: 1.0 Content-type: text/plain; charset=windows-1252; format=flowed Content-transfer-encoding: 8BIT X-Accept-Language: en-us, en User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.5) Gecko/20031007 In the middle of this year’s annual on a LNC2 (N360JM) and I have two questions. 1) The plane is on jacks and when I run the free-fall gear test, it stops before the overcenter link finishes. Pulled the bolt on the over-center link and all indications are that the Matco hydraulic cylinder is sticking as everything else swings very free. The kit was started in ‘91 and started flying in ‘99. I changed out the hydraulic fluid last year during the annual (the pump plastic tank was splitting.) and used new bulk fluid, type 41, from Aircraft Spruce. Do the cylinder seals go bad around this time frame on Matcos? If so, can I get just the elastomer parts and rebuild myself or is it a factory job only? 2) In a similar vein, it appears the Matco brake pucks are also sticking. So same question – do they tend to go bad around this time frame? Thanks, Charles Patton