X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sat, 06 Dec 2008 22:46:17 -0500 Message-ID: X-Original-Return-Path: Received: from mailrelay.embarq.synacor.com ([208.47.184.3] verified) by logan.com (CommuniGate Pro SMTP 5.2.10) with ESMTP id 3333992 for lml@lancaironline.net; Sat, 06 Dec 2008 10:11:56 -0500 Received-SPF: pass receiver=logan.com; client-ip=208.47.184.3; envelope-from=liegner@embarqmail.com X-Original-Return-Path: X_CMAE_Category: 0,0 Undefined,Undefined X-CNFS-Analysis: v=1.0 c=1 a=57NtMODilSoA:10 a=-A3WDf4CKigA:10 a=Kaj4sjeLNb7tdwRmE5MA:9 a=JqkWS4-_B6FBSEUrqpIA:7 a=UskPV2tHD31yYIWO4UVC_Mr3WnMA:4 a=bXWKqgsz22YA:10 a=PM3h3NMDdTMA:10 a=EvFsD9_1mWgA:10 X-CM-Score: 0 X-Scanned-by: Cloudmark Authority Engine Authentication-Results: smtp02.embarq.synacor.com smtp.user=liegner@embarqmail.com; auth=pass (LOGIN) Received: from [71.1.169.202] ([71.1.169.202:15108] helo=[172.16.1.2]) by mailrelay.embarq.synacor.com (envelope-from ) (ecelerity 2.2.2.36 r(27513/27514)) with ESMTPA id BF/92-21973-3169A394; Sat, 06 Dec 2008 10:11:20 -0500 Mime-Version: 1.0 X-Sender: liegner@embarqmail.com@pop.embarqmail.com X-Original-Message-Id: X-Original-Date: Sat, 6 Dec 2008 09:21:57 -0500 X-Original-To: lml@lancaironline.net From: "Jeffrey Liegner, MD" Subject: re: Manual Gear Down Hand Pump Hydralic Leak (LIVP) Content-Type: text/plain; charset="us-ascii" ; format="flowed" More follow up on the emergency hand pump. The three O rings went into the pump housing with modest effort but fairly straight forward. After reinstall, I cycled the gear many times (on jacks) and everything worked well. Observation: it now takes 16 pumps on the emergency hand pump to get a down and locked gear; before it took 22 pumps. A noticeable difference. Happy flying. Jeff L >This is a brief update on my Emergency Gear Down Hand Pump service. >The pumps have a ring Rebuild Kit (Lancair part# HC-490) which >contains three O-Rings: > O-Ring Hand Pump plug (Item 33X3) > O-Ring Polypak Hand Pump (Item 4615.1870-0875) > Wiber Hydralic Cylinder Main Gear Down (Item 940-3) > >This part# HC-490 (~$10) is not listed on the aerocraftparts.com >website. Michelle provided this quickly. >Replacment of these rings does not look complicated. > >I'll be installing these rings shortly, and will have some follow up >reports in a couple months of use. > >Jeff L > > >>My LIVP is in annual now, so I've pulled everything out for a >>thorough inspection (and floor vacuuming of the accumulum of dirt). >> >>I note the gear down hand pump hydralic valve (between the front >>seats) has a small weeping leak of hydralic fluid. It appears to >>be from the bottom gaskets or ring seals. I'm about to dive into >>that subject, but I am posting to others who have dealt with it. >>Lessons learned? Best fix technique? Complications and pitfalls >>encountered? Cheaper to just replace? >> >>Share your past experience. Thanks. >> >>Jeff Liegner >>LIVP in New Jersey