X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sat, 22 Jan 2011 07:32:27 -0500 Message-ID: X-Original-Return-Path: Received: from blu0-omc3-s6.blu0.hotmail.com ([65.55.116.81] verified) by logan.com (CommuniGate Pro SMTP 5.4c2a) with ESMTP id 4822353 for lml@lancaironline.net; Fri, 21 Jan 2011 19:52:47 -0500 Received-SPF: pass receiver=logan.com; client-ip=65.55.116.81; envelope-from=cgainza@msn.com Received: from BLU139-W33 ([65.55.116.72]) by blu0-omc3-s6.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Fri, 21 Jan 2011 16:52:13 -0800 X-Original-Message-ID: X-Original-Return-Path: cgainza@msn.com Content-Type: multipart/alternative; boundary="_ac81c056-0566-467a-b1c0-566e03605ad6_" X-Originating-IP: [32.177.197.33] From: Craig Gainza X-Original-To: Lancair List Subject: Intermittent hydraulic pump 4P X-Original-Date: Fri, 21 Jan 2011 16:52:13 -0800 Importance: Normal MIME-Version: 1.0 X-OriginalArrivalTime: 22 Jan 2011 00:52:13.0501 (UTC) FILETIME=[9B97CED0:01CBB9CE] --_ac81c056-0566-467a-b1c0-566e03605ad6_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I recently noticed frequent cycling of the hydraulic pump when activating f= laps only. =20 My gear extends and retracts with normal pump operation. It runs continual= ly and smoothly until the proper pressure is reached. I replaced the pressure switch (showed leakage) and the intermittent pump o= peration continues. My next step is to replace the accumulator or rebuild the control quadrant. I assume since the cycling of the pump occurs when only using the flaps=2C = that a rebuild of the control quadrant would be the next step. Any thoughts from those more knowledgeable in hydraulics than I? Thanks=2C Craig Gainza=20 680 hrs 4P = --_ac81c056-0566-467a-b1c0-566e03605ad6_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I recently noticed frequent cycling of the hydraulic pump when activatin= g flaps only. =3B

My gear extends and retracts with normal = pump operation. =3B It runs continually and smoothly until the proper p= ressure is reached.

I replaced the pressure switch (showed leakage) = and the intermittent pump operation continues.

My next step is to re= place the accumulator or rebuild the control quadrant.

I assume sinc= e the cycling of the pump occurs when only using the flaps=2C that a= rebuild of the control quadrant would be the next step.

Any thought= s from those more knowledgeable in hydraulics than I?

Thanks=2C
<= br>Craig Gainza
680 hrs 4P
= --_ac81c056-0566-467a-b1c0-566e03605ad6_--