Return-Path: Received: from cdihost.cdicorp.com ([207.79.152.5]) by truman.olsusa.com (Post.Office MTA v3.1.2 release (PO203-101c) ID# 0-44819U2500L250S0) with SMTP id AAA12213 for ; Fri, 6 Nov 1998 09:10:16 -0500 Received: from CDIM-PTS-MAIL by cdihost.cdicorp.com via smtpd (for truman.olsusa.com [205.245.9.2]) with SMTP; 6 Nov 1998 14:10:24 UT Received: by cdim-pts-mail.ports-va.marine.cdicorp.com with SMTP (Microsoft Exchange Server Internet Mail Connector Version 4.0.995.52) id <01BE0964.DB8D6950@cdim-pts-mail.ports-va.marine.cdicorp.com>; Fri, 6 Nov 1998 09:07:19 -0500 Message-ID: From: "Rumburg, William" To: "'Angier M. Ames'" , "'lancair.list@olsusa.com'" Subject: RE: LC20 Hydraulics Date: Fri, 6 Nov 1998 09:07:18 -0500 X-Mailing-List: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> There has been a lot of discussion lately among Glasair owners about hydraulic pressure on the low side (gear down), bleeding off to very low or zero psi levels when the plane sits idle for a week or more. Is this something we should be concerned about? Angier Ames Angier - The hydraulic system on my 320 seems to maintain the 500 psi down-lock pressure for quite a while. Only occasionally, after its sat for at least several days, does the pump run for a short burst to reestablish the full down-lock pressure when first turned on. In any event, the springs easily hold the overcenter link in the down-locked position, so I can't see any reason for concern. Bill Rumburg N403WR (Sonic Boom)