Return-Path: Sender: "Marvin Kaye" To: lml@lancaironline.net Date: Sun, 27 Feb 2005 20:30:10 -0500 Message-ID: X-Original-Return-Path: Received: from imo-m28.mx.aol.com ([64.12.137.9] verified) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP id 761728 for lml@lancaironline.net; Sun, 27 Feb 2005 13:41:14 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.9; envelope-from=Sky2high@aol.com Received: from Sky2high@aol.com by imo-m28.mx.aol.com (mail_out_v37_r3.8.) id q.14.3ffe6740 (4410) for ; Sun, 27 Feb 2005 13:40:25 -0500 (EST) From: Sky2high@aol.com X-Original-Message-ID: <14.3ffe6740.2f536e19@aol.com> X-Original-Date: Sun, 27 Feb 2005 13:40:25 EST Subject: Re: [LML] Re: Hydraulic diagnostic assistance needed X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1109529625" X-Mailer: 9.0 Security Edition for Windows sub 5000 -------------------------------1109529625 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 2/27/2005 12:16:41 P.M. Central Standard Time, PJHWFD@aol.com writes: My Legacy has developed a problem with failure to retract. It will take between 5 and 30 seconds after flipping the switch to get the pump to activate. This only happens first retract of the day and in cold weather. It has never done it a second time within a given flight and cannot be repeated on jacks. Lancair says this is a qwerk in cold weather but if this is true what is the mechanism? Any insight? Peter, Electrons move slower when cold. Or 1. "Up" relay is sticking until current warms coil and vibration frees it*. 2. Pressure switch is sticking? 3. Squat switch is still thinking that you are still squatting. 4. I assume that you are in a heated hangar when the plane is up on jacks. If so, put it up on jacks, turn off the heat, leave the door open on a cold night and then, first thing in the morning take two aspirin and try it. Of course, if you have an air speed activated squat switch, you probably bypassed it in order to raise the gear whilst on the jacks. Scott Krueger AKA Grayhawk Lancair N92EX IO320 SB 89/96 Aurora, IL (KARR) Fair and Balanced Opinions at No Charge! There is an oxymoron in that, somewhere... * Intermittant gear relays are frequently damaged by Lancair wiring scheme and miscellaneous testing done with the master switch on while failing to pull the "relay" breaker. -------------------------------1109529625 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
In a message dated 2/27/2005 12:16:41 P.M. Central Standard Time,=20 PJHWFD@aol.com writes:
<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>My=20 Legacy has developed a problem with failure to retract. It will take betwe= en 5=20 and 30 seconds after flipping the switch to get the pump to=20 activate. This only happens first retract of the day and in cold weat= her.=20 It has never done it a second time within a given flight and cannot be=20 repeated on jacks. Lancair says this is a qwerk in cold weather but if thi= s is=20 true what is the mechanism? Any insight?
Peter,
 
Electrons move slower when cold.
 
Or
 
1. "Up" relay is sticking until current warms coil and vibration frees=20 it*.
 
2. Pressure switch is sticking?
 
3. Squat switch is still thinking that you are still squatting.
 
4.  I assume that you are in a heated hangar when the plane is up=20= on=20 jacks.  If so, put it up on jacks, turn off the heat, leave the door op= en=20 on a cold night and then, first thing in the morning take two aspirin=20 and try it.  Of course, if you have an air speed=20 activated squat switch, you probably bypassed it in order to raise the=20= gear=20 whilst on the jacks.
 
Scott Krueger=20 AKA Grayhawk
Lancair N92EX IO320 SB 89/96
Aurora, IL (KARR)

Fai= r=20 and Balanced Opinions at No Charge!
There is an oxymoron in that,=20 somewhere...

* Intermittant gear relays are frequently damaged by Lancair wiring sch= eme=20 and miscellaneous testing done with the master switch on while failing=20= to=20 pull the "relay" breaker.
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