Return-Path: Sender: "Marvin Kaye" To: lml@lancaironline.net Date: Tue, 01 Mar 2005 07:52:14 -0500 Message-ID: X-Original-Return-Path: Received: from tomts16-srv.bellnexxia.net ([209.226.175.4] verified) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP id 763792 for lml@lancaironline.net; Mon, 28 Feb 2005 20:25:43 -0500 Received-SPF: none receiver=logan.com; client-ip=209.226.175.4; envelope-from=ian.crowe@sympatico.ca Received: from crowe ([69.159.74.163]) by tomts16-srv.bellnexxia.net (InterMail vM.5.01.06.10 201-253-122-130-110-20040306) with SMTP id <20050301012453.STMV1836.tomts16-srv.bellnexxia.net@crowe> for ; Mon, 28 Feb 2005 20:24:53 -0500 X-Original-Message-ID: <001801c51dfd$4c658460$65c4fea9@crowe> From: "Ian B. Crowe" X-Original-To: "Lancair Mailing List" Subject: LNC 2 Hydraulics X-Original-Date: Mon, 28 Feb 2005 20:23:38 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0015_01C51DD3.631FF1B0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_0015_01C51DD3.631FF1B0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable My a/c has been in the hangar for at least two weeks whilst we worked on = an oil cooler problem. When we closed it up and were doing the preflight I noticed the "Down" = pressure gauge was showing zero but the pump refused to run. On closer = inspection I realised the needle was pegged against the stop and was = registering 1000psi ++ I opened the emergency gear extension cock a hair, bled the pressure = down to 400psi and the pump kicked in and brought it back to 550psi. = Pressure switch works ok obviously. The hangar is heated to about 55F. We flew the a/c and the gear worked well, no problem. Where this = pressure comes from beats me as with the gear down the HP side of the = system is at zero and the gear select is in the down position. The = safety switch I have will not allow the pump to run to retract the gear. Curiouser and curiouser to quote Alice in Wonderland. Ian Crowe. ------=_NextPart_000_0015_01C51DD3.631FF1B0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
My a/c has been in the hangar for at = least two=20 weeks whilst we worked on an oil cooler problem.
 
When we closed it up and were doing the = preflight I=20 noticed the "Down" pressure gauge was showing zero but the pump refused = to=20 run.  On closer inspection I realised the needle was pegged against = the=20 stop and was registering 1000psi ++
 
I opened the emergency gear extension = cock a hair,=20 bled the pressure down to 400psi and the pump kicked in and brought it = back to=20 550psi.  Pressure switch works ok obviously.  The hangar is = heated to=20 about 55F.
 
We flew the a/c and the gear worked = well, no=20 problem.  Where this pressure comes from beats me as with the gear = down the=20 HP side of the system is at zero and the gear select is in the down=20 position.  The safety switch I have will not allow the pump to run = to=20 retract the gear.
 
Curiouser and curiouser to quote Alice = in=20 Wonderland.
 
Ian Crowe.
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