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Trim motor adjustment

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Jimz

Joined: 09 Dec 2007
Posts: 31

Posted: Thu Jun 09, 2011 10:29 am Post subject: Trim motor adjustment

I am doing the initial adjustment on my electric trim. I set the 7/16 inch clearance called for in the manual. I then run the unit all the way down. When I run it back up it goes past the 7/16 inch setting and hits the tube above. Do I have a bad unit or am I missing something in my adjustment procedure?  Thanks for any input.



Jim 

Series 5 0-200

21D MN

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lcfitt(at)sbcglobal.net
Guest

Posted: Thu Jun 09, 2011 11:21 am Post subject: Trim motor adjustment

Jim,



I am only a looker on a Series V, but the rod end on the end of the jack 

screw on the local V is snugged in pretty tight.  I suspect there might be a 

little slop in the gear train.  I think what I would do is drop the rod end 

as far as it will go and then cycle the actuator to the top and then 

reposition the rod end so there is no contact with the tube.  My guess is 

that the only time you will ever trim to the extremes of the movement is 

during the test phase when you will demonstrate controllability in the case 

of a run away trim system.



Lowell



--------------------------------------------------

From: "Jimz" <jezim(at)pro-ns.net>

Sent: Thursday, June 09, 2011 11:29 AM

To: <kitfox-list(at)matronics.com>

Subject: Trim motor adjustment



 	  Quote: 	
		   



 I am doing the initial adjustment on my electric trim. I set the 7/16 inch 

 clearance called for in the manual. I then run the unit all the way down. 

 When I run it back up it goes past the 7/16 inch setting and hits the tube 

 above. Do I have a bad unit or am I missing something in my adjustment 

 procedure?  Thanks for any input.



 Jim

 Series 5 0-200

 21D MN





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=342526#342526

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n981ms(at)yahoo.com
Guest

Posted: Tue Jun 14, 2011 5:17 am Post subject: Trim motor adjustment

I need use full up for approach and landing with flaps and still have to hold a little back pressure. I don't think this is isolated to my aircraft.  I don't think I have ever needed full down though.

 

Maxwell Duke

Kitfox S6/TD/IO240 500+hrs

1996 Maule M7 235C Sold

RV-10 IO-540

Dublin, GA

From: Lowell Fitt <lcfitt(at)sbcglobal.net>

To: kitfox-list(at)matronics.com

Sent: Thu, June 9, 2011 3:19:07 PM

Subject: Re: Trim motor adjustment



 --> Kitfox-List message posted by: "Lowell Fitt" <lcfitt(at)sbcglobal.net (lcfitt(at)sbcglobal.net)>



Jim,



I am only a looker on a Series V, but the rod end on the end of the jack screw on the local V is snugged in pretty tight.  I suspect there might be a little slop in the gear train.  I think what I would do is drop the rod end as far as it will go and then cycle the actuator to the top and then reposition the rod end so there is no contact with the tube.  My guess is that the only time you will ever trim to the extremes of the movement is during the test phase when you will demonstrate controllability in the case of a run away trim system.



Lowell



--------------------------------------------------

From: "Jimz" <jezim(at)pro-ns.net (jezim(at)pro-ns.net)>

Sent: Thursday, June 09, 2011 11:29  AM

To: <kitfox-list(at)matronics.com (kitfox-list(at)matronics.com)>

Subject: Trim motor adjustment



[quote] --> Kitfox-List message posted by: "Jimz" <jezim(at)pro-ns.net (jezim(at)pro-ns.net)>

 

 I am doing the initial adjustment on my electric trim. I set the 7/16 inch clearance called for in the manual. I then run the unit all the way down. When I run it back up it goes past the 7/16 inch setting and hits the tube above. Do I have a bad unit or am I missing something in my adjustment procedure?  Thanks for any input.

 

 Jim

 Series 5 0-200

 21D MN

 

 

 

 

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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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