X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 06 Dec 2007 14:40:30 -0500 Message-ID: X-Original-Return-Path: Received: from eastrmmtao102.cox.net ([68.230.240.8] verified) by logan.com (CommuniGate Pro SMTP 5.2c1) with ESMTP id 2556733 for lml@lancaironline.net; Wed, 05 Dec 2007 00:08:18 -0500 Received-SPF: none receiver=logan.com; client-ip=68.230.240.8; envelope-from=rpastusek@htii.com Received: from eastrmimpo01.cox.net ([68.1.16.119]) by eastrmmtao102.cox.net (InterMail vM.7.08.02.01 201-2186-121-102-20070209) with ESMTP id <20071205050740.ZDFY16464.eastrmmtao102.cox.net@eastrmimpo01.cox.net> for ; Wed, 5 Dec 2007 00:07:40 -0500 Received: from dlhtpax009 ([72.213.209.230]) by eastrmimpo01.cox.net with bizsmtp id Lt731Y0014yoHb40000200; Wed, 05 Dec 2007 00:07:06 -0500 From: "Robert Pastusek" X-Original-To: "'Lancair Mailing List'" References: In-Reply-To: Subject: RE: [LML] emailable diagram of IVP hydraulic system X-Original-Date: Wed, 5 Dec 2007 00:07:15 -0500 X-Original-Message-ID: <000a01c836fc$c144f700$43cee500$@com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000B_01C836D2.D86EEF00" X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: Acg1+8Du7E2M71HFQrOU3Jl2/ui+iQA8+VsQ Content-Language: en-us This is a multipart message in MIME format. ------=_NextPart_000_000B_01C836D2.D86EEF00 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Colyn writes. Does anyone have an emailable copy of the IVP hydraulic system diagram? Also, I was out yesterday and did 8 cycles on the gear and then on the last touch and go I couldn't get the gear handle to move. Is there a typical failure mode associated with this? Colyn, I have the diagram in paper copy and could fax it to you if needed. If you have a "built to plans" IV or IV-P, it's equipped with an electric solenoid that mechanically locks the gear handle in the down position when the airspeed is below a pre-set value-probably 90 kts or so-depending on your builder. This is an electrical circuit, probably on a circuit breaker or fuse, so check this first. It's also possible to easily jam the mechanical part of the solenoid by trying to raise the handle before the solenoid pin has been electrically retracted. If the gear handle is forced at all, it bend or marks the solenoid pin, preventing it from working smoothly afterward. The fix in this case is probably to replace the solenoid. It's located immediately under the "drum" on the landing gear side of the center vertical instrument console. Hope this helps. Contact me off-line if you'd like to discuss further. Bob ------=_NextPart_000_000B_01C836D2.D86EEF00 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Colyn writes…

Does anyone have an emailable copy of the IVP hydraulic system = diagram?

Also, I was out yesterday and did 8 cycles on the gear and then on the last = touch and go I couldn't get the gear handle to move. Is there a typical = failure mode associated with this?

Colyn,

I have the diagram in paper copy and could fax it to you = if needed.

If you have a “built to plans” IV or IV-P, = it’s equipped with an electric solenoid = that mechanically locks the gear handle in the down position when the = airspeed is below a pre-set value—probably 90 kts or so—depending on = your builder. This is an electrical circuit, probably on a circuit breaker or = fuse, so check this first. It’s also possible to easily jam the = mechanical part of the solenoid by trying to raise the handle before the solenoid pin = has been electrically retracted. If the gear handle is forced at all, it bend or = marks the solenoid pin, preventing it from working smoothly afterward. The fix = in this case is probably to replace the solenoid. It’s located = immediately under the “drum” on the landing gear side of the center = vertical instrument console.

Hope this helps. Contact me off-line if you’d like to discuss = further.

Bob

------=_NextPart_000_000B_01C836D2.D86EEF00--