X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 03 Apr 2012 13:28:57 -0400 Message-ID: X-Original-Return-Path: Received: from mail-yw0-f52.google.com ([209.85.213.52] verified) by logan.com (CommuniGate Pro SMTP 5.4.4) with ESMTPS id 5466997 for lml@lancaironline.net; Tue, 03 Apr 2012 12:45:57 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.213.52; envelope-from=pjdmiller@gmail.com Received: by yhpp61 with SMTP id p61so2582900yhp.25 for ; Tue, 03 Apr 2012 09:45:22 -0700 (PDT) Received: by 10.236.138.197 with SMTP id a45mr11144158yhj.97.1333471522897; Tue, 03 Apr 2012 09:45:22 -0700 (PDT) X-Original-Return-Path: Received: from [192.168.15.102] ([67.8.30.163]) by mx.google.com with ESMTPS id m30sm59727968yhe.15.2012.04.03.09.45.20 (version=TLSv1/SSLv3 cipher=OTHER); Tue, 03 Apr 2012 09:45:22 -0700 (PDT) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Apple Message framework v1084) Subject: Re: [LML] Legacy overcenter links From: Paul Miller In-Reply-To: X-Original-Date: Tue, 3 Apr 2012 12:45:18 -0400 Content-Transfer-Encoding: quoted-printable X-Original-Message-Id: References: X-Original-To: Lancair Mailing List X-Mailer: Apple Mail (2.1084) Interesting pictures Charles. We have a Legacy on jacks with those = links back to Lancair for fixing and it has been more than a month with = continuing delays so I'm not sending mine in until I know I can get them = back in short order. I doubt the 2 day turnaround is accurate on = Lancair's part based on our recent experience. On the removed parts, there was no crack but the powder coating was = missing at the critical area and corrosion was apparent at that exact = same spot. Other than missing the crack, it looked just like your = link. It appeared to have been stressed at that area. I would suggest = anyone with unusual powder coating or marks in that area pay careful = attention although no crack may not be evident. It may indicate a = stress problem. And, we already know the other end of the hydraulic = actuator has had failures so both welds need to be examined especially = if making adjustments to the pressures or linkages. My links do not = have powder coating but the usual Florida surface corrosion is typically = all I see in that area. I note that another group here at Spruce with the SX-300 aircraft use an = accumulator to absorb the pressure spikes on the gear pump. On my = Legacy I might want to include that or perhaps use the snubbers from = McMaster Carr that absorb the shock as the gear is pulled into the well. = Otherwise, as I understand it, you have a full pressure hydraulic pump = running at 1200 psi limits (or thereabouts) that slams the gear into the = well, hits the high pressure cut out and shuts off. It may recycle is = the pressure drops and the inner gear door also comes into play but the = spikes would be inherent in the design without a snubber or accumulator. = Comments would be appreciated on anyone who has gone the accumulator = route--I believe the snubber has been discussed in past threads already. Paul=20 Legacy RG Spruce Creek On 2012-04-03, at 10:21 AM, Charles Brown wrote: > Short story: My 2006 Legacy kit with 2008 overcenter links has the = flawed parts and needs fixing.