X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 29 Jan 2013 00:11:00 -0500 Message-ID: X-Original-Return-Path: Received: from va3outboundpool.messaging.microsoft.com ([216.32.180.30] verified) by logan.com (CommuniGate Pro SMTP 6.0.1) with ESMTPS id 6034158 for lml@lancaironline.net; Mon, 28 Jan 2013 21:49:49 -0500 Received-SPF: pass receiver=logan.com; client-ip=216.32.180.30; envelope-from=rpastusek@htii.com Received: from mail47-va3-R.bigfish.com (10.7.14.253) by VA3EHSOBE009.bigfish.com (10.7.40.29) with Microsoft SMTP Server id 14.1.225.23; Tue, 29 Jan 2013 02:49:13 +0000 Received: from mail47-va3 (localhost [127.0.0.1]) by mail47-va3-R.bigfish.com (Postfix) with ESMTP id 29B2B2C016A for ; Tue, 29 Jan 2013 02:49:13 +0000 (UTC) X-Forefront-Antispam-Report: CIP:157.56.245.5;KIP:(null);UIP:(null);IPV:NLI;H:CH1PRD0710HT002.namprd07.prod.outlook.com;RD:none;EFVD:NLI X-SpamScore: -2 X-BigFish: PS-2(zz98dI9371Ic85fhzz1ee6h1de0h1202h1e76h1d1ah1d2ahzz8275ch17326ah8275dh18c673h8275bhz2fh2a8h668h839hd25hf0ah1288h12a5h12bdh137ah1441h1504h1537h153bh15d0h162dh1631h1758h18e1h1155h) Received-SPF: pass (mail47-va3: domain of htii.com designates 157.56.245.5 as permitted sender) client-ip=157.56.245.5; envelope-from=rpastusek@htii.com; helo=CH1PRD0710HT002.namprd07.prod.outlook.com ;.outlook.com ; Received: from mail47-va3 (localhost.localdomain [127.0.0.1]) by mail47-va3 (MessageSwitch) id 1359427750614616_25470; Tue, 29 Jan 2013 02:49:10 +0000 (UTC) Received: from VA3EHSMHS018.bigfish.com (unknown [10.7.14.251]) by mail47-va3.bigfish.com (Postfix) with ESMTP id 6DFF5A0118 for ; Tue, 29 Jan 2013 02:49:10 +0000 (UTC) Received: from CH1PRD0710HT002.namprd07.prod.outlook.com (157.56.245.5) by VA3EHSMHS018.bigfish.com (10.7.99.28) with Microsoft SMTP Server (TLS) id 14.1.225.23; Tue, 29 Jan 2013 02:49:08 +0000 Received: from CH1PRD0710MB367.namprd07.prod.outlook.com ([169.254.11.248]) by CH1PRD0710HT002.namprd07.prod.outlook.com ([10.255.152.37]) with mapi id 14.16.0263.000; Tue, 29 Jan 2013 02:49:03 +0000 From: Robert R Pastusek X-Original-To: Lancair Mailing List Subject: RE: [LML] Re: hydraulic pump/reservoir in IVP Thread-Topic: [LML] Re: hydraulic pump/reservoir in IVP Thread-Index: AQHN/W3IQ60lVMHjC0O8A6YrCpF1mphflymQ X-Original-Date: Tue, 29 Jan 2013 02:49:02 +0000 X-Original-Message-ID: <41361035E6613244A377D5AC3BF5EFDD4A866000@CH1PRD0710MB367.namprd07.prod.outlook.com> References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [166.147.113.67] Content-Type: multipart/alternative; boundary="_000_41361035E6613244A377D5AC3BF5EFDD4A866000CH1PRD0710MB367_" MIME-Version: 1.0 X-Original-Return-Path: rpastusek@htii.com X-OriginatorOrg: htii.com --_000_41361035E6613244A377D5AC3BF5EFDD4A866000CH1PRD0710MB367_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Laurie Fitzgerald (Australia) advises that while the manual pump can compen= sate for an electric pump failure, it will likely only help you dump the re= maining hydraulic fluid overboard in the event of a leak. I agree with this= assessment...for leaks within most of the IV/IV-P hydraulic system. Laurie= further advises that he's working on an improvement. If he successfully fi= gures this out, we'd be pleased to publish it to LML and LOBO followers. Bob From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of John= Barrett Sent: Monday, January 28, 2013 10:40 AM To: lml@lancaironline.net Subject: [LML] Re: hydraulic pump/reservoir in IVP Thanks Bob, And that's a great idea for the dip stick. As I recall the overflow vent w= as called for in the plans and I have that feature. John From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Robe= rt R Pastusek Sent: Monday, January 28, 2013 6:28 AM To: lml@lancaironline.net Subject: [LML] Re: hydraulic pump/reservoir in IVP John Barrett wrote: Anyone know the capacity of the reservoir? I measured the box roughly and = got 6"X6"X6.5". Don't know the displacement of the internal parts that go = inside the tank. An even more important question is how full to fill the tank? All the way = or some measurement below the top? John, I'd recommend you leave at least an inch of airspace at the top of the rese= rvoir; 2" is better. This allows for thermal expansion and to accommodate a= ny air that might get into the system. It's also important that the tank be= vented as shown in the building diagrams...for the same reason. The volume= in the reservoir doesn't change appreciably during operation of the gear a= nd flaps. Also note that the tank has a pickup for the emergency extension = hand pump that is lower than the normal pump pickup. This allows the emerge= ncy pump to draw oil for gear extension after the electric pump has pumped = all it can overboard in the event of a leak. I made a very simple "dip stick" for the reservoir by drilling the fill plu= g from the inside for a length of 1/8" aluminum pipe, and bonding the tubin= g in the plug with JB Weld. Then mark the dip stick for the max and min lev= els you'd like. Do this easily by crimping the tube gently to mark it with = a pair of side cutters. Works well... Bob --_000_41361035E6613244A377D5AC3BF5EFDD4A866000CH1PRD0710MB367_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Laurie Fitzgerald (Australia) advises that while the manual pum= p can compensate for an electric pump failure, it will likely only help you dump the remaining hydraulic fluid overboard = in the event of a leak. I agree with this assessment…for leaks within= most of the IV/IV-P hydraulic system. Laurie further advises that he’= ;s working on an improvement. If he successfully figures this out, we’d be pleased to publish it to LML and LOBO foll= owers.

 

Bob

 

 

From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of John Barre= tt
Sent: Monday, January 28, 2013 10:40 AM
To: lml@lancaironline.net
Subject: [LML] Re: hydraulic pump/reservoir in IVP=

 

Thanks Bob,=

 

And that’s a gre= at idea for the dip stick.  As I recall the overflow vent was called f= or in the plans and I have that feature.

 

John=

 

From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Robert R Pastusek
Sent: Monday, January 28, 2013 6:28 AM
To: lml@lancaironline.net
Subject: [LML] Re: hydraulic pump/reservoir in IVP=

 

John Barrett wrote:

 

Anyone know the capacity of the reservoir?  I m= easured the box roughly and got 6”X6”X6.5”.  DonR= 17;t know the displacement of the internal parts that go inside the tank.

 

An even more important question is how full to fill = the tank?  All the way or some measurement below the top?

 

 

John,

 

I’d recommend yo= u leave at least an inch of airspace at the top of the reservoir; 2” = is better. This allows for thermal expansion and to accommodate any air tha= t might get into the system. It’s also important that the tank be vented as shown in the building diagrams…for the sa= me reason. The volume in the reservoir doesn’t change appreciably dur= ing operation of the gear and flaps. Also note that the tank has a pickup f= or the emergency extension hand pump that is lower than the normal pump pickup. This allows the emergency pump to draw = oil for gear extension after the electric pump has pumped all it can overbo= ard in the event of a leak.

 

I made a very simple &= #8220;dip stick” for the reservoir by drilling the fill plug from the= inside for a length of 1/8” aluminum pipe, and bonding the tubing in= the plug with JB Weld. Then mark the dip stick for the max and min levels you’d like. Do this easily by crimping the tube g= ently to mark it with a pair of side cutters.


Works well…


Bob

--_000_41361035E6613244A377D5AC3BF5EFDD4A866000CH1PRD0710MB367_--