Return-Path: Sender: (Marvin Kaye) To: lml Date: Tue, 29 Oct 2002 00:46:41 -0500 Message-ID: X-Original-Return-Path: Received: from [32.97.166.32] (HELO prserv.net) by logan.com (CommuniGate Pro SMTP 4.0) with ESMTP id 1847213 for lml@lancaironline.net; Mon, 28 Oct 2002 22:13:14 -0500 Received: from oemcomputer (slip-12-64-234-126.mis.prserv.net[12.64.234.126]) by prserv.net (out2) with SMTP id <2002102903131320201ho4v6e>; Tue, 29 Oct 2002 03:13:13 +0000 From: "Larry Henney" X-Original-To: "'Lancair Mailing List'" Subject: RE: [LML] Re: LNC 2 hydraulics X-Original-Date: Mon, 28 Oct 2002 21:11:40 -0600 X-Original-Message-ID: <000601c27ef8$e7539940$7eea400c@oemcomputer> MIME-Version: 1.0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.2627 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Ed Writes: >This is important because what happens in summer is that the fluid leaks across into the low pressure side, the pump for some reason does not allow this pressure to vent to the reservoir. Then, while you taxi to the active, the system heats up causing pressure in both circuits to rise together. If this pressure rises to 800 psi, the switches will not allow you to raise the landing gear and actuating the dump valve will have no effect. You will be stuck until you land and crack the system to let pressure out. I know because it has happened to me several times until I started pulling the breaker on the ground. With overhauled cylinders, it's no longer a threat. Thanks Ed. That was an absolute Gold Nugget of clarification. I had this happen a couple times and wasn't sure why / how I had "fixed" the lockup. Larry Henney N360LH LNC2 IO-360 B1 16XS Ft Worth, TX