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fougapilot
Joined: 20 Jul 2007
Posts: 88
Location: Flat on my back with minimum airspeed
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 Posted: Sat Apr 30, 2016 12:59 pm Post subject: Stab trim |
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Hey guys,
Just completed the annual and during the maintenance run up we discovered that the stab trim does not work. Worked great last time I used it, but no so much anymore. It refuses to move what so ever.
Here is what we know so far;
The motor works. We connected it directly to 24v power and it works well in both directions.
We think the problem may be with the control box just above the motor (the one containing the 4 contact/stop switches) or with the relays in the aft fuselage.
Anyone ever saw this before? If so your ideas would be greatly appreciated.
Cheers,
DF
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delfin29(at)me.com
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| Posted: Sat Apr 30, 2016 1:34 pm Post subject: Stab trim |
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Could be some switch near and connected to the flaps.
Jean
| Quote: | Le 30 avr. 2016 à 22:59, fougapilot <fougapilot(at)hotmail.com> a écrit :
Hey guys,
Just completed the annual and during the maintenance run up we discovered that the stab trim does not work. Worked great last time I used it, but no so much anymore. It refuses to move what so ever.
Here is what we know so far;
The motor works. We connected it directly to 24v power and it works well in both directions.
We think the problem may be with the control box just above the motor (the one containing the 4 contact/stop switches) or with the relays in the aft fuselage.
Anyone ever saw this before? If so your ideas would be greatly appreciated.
Cheers,
DF
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=455692#455692
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fougapilot
Joined: 20 Jul 2007
Posts: 88
Location: Flat on my back with minimum airspeed
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| Posted: Sat Apr 30, 2016 1:42 pm Post subject: Re: Stab trim |
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Thanks.
I will look it up.
I did blow the flaps down (I had to service the accumulator any way) to make sure the fact that the flaps were up didn't affect the stab trip, but still no change. I will look at the switches. I would assume it is a stop switch in the up position?
D
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ca6209(at)flash.net
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| Posted: Sat Apr 30, 2016 1:55 pm Post subject: Stab trim |
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Normally the cannon plug that was removed
When the tail was removed. Clean the plug and pins.
Gary
Sent from my iPad
| Quote: | On Apr 30, 2016, at 4:34 PM, delfin29(at)me.com wrote:
Could be some switch near and connected to the flaps.
Jean
> Le 30 avr. 2016 à 22:59, fougapilot <fougapilot(at)hotmail.com> a écrit :
>
>
>
> Hey guys,
>
> Just completed the annual and during the maintenance run up we discovered that the stab trim does not work. Worked great last time I used it, but no so much anymore. It refuses to move what so ever.
>
> Here is what we know so far;
>
> The motor works. We connected it directly to 24v power and it works well in both directions.
>
> We think the problem may be with the control box just above the motor (the one containing the 4 contact/stop switches) or with the relays in the aft fuselage.
>
> Anyone ever saw this before? If so your ideas would be greatly appreciated.
>
> Cheers,
>
> DF
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=455692#455692
|
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fougapilot
Joined: 20 Jul 2007
Posts: 88
Location: Flat on my back with minimum airspeed
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| Posted: Sat Apr 30, 2016 2:13 pm Post subject: Re: Stab trim |
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Ok, we'll look at it, but we do have 22volts at the connector next to the motor.
Is there a different pin for the power than the signal?
D
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Dawg
Joined: 19 May 2013
Posts: 355
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| Posted: Sat Apr 30, 2016 2:37 pm Post subject: Stab trim |
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Micro switch is stuck. Remove top wing strap and use long screw driver to actuate micro switches.
I can’t remember which wing??
On Apr 30, 2016, at 14:59, fougapilot <fougapilot(at)hotmail.com> wrote:
| Quote: |
Hey guys,
Just completed the annual and during the maintenance run up we discovered that the stab trim does not work. Worked great last time I used it, but no so much anymore. It refuses to move what so ever.
Here is what we know so far;
The motor works. We connected it directly to 24v power and it works well in both directions.
We think the problem may be with the control box just above the motor (the one containing the 4 contact/stop switches) or with the relays in the aft fuselage.
Anyone ever saw this before? If so your ideas would be greatly appreciated.
Cheers,
DF
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=455692#455692
|
| | - The Matronics L29-List Email Forum - | | | 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:
http://www.matronics.com/Navigator?L29-List |
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_________________
Dawg |
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skyking76t(at)verizon.net
Guest
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| Posted: Sun May 01, 2016 4:52 am Post subject: Stab trim |
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Had this happen on my L-29. My tail stuck in the landing position. Took off and didn't know it had stuck there. Very interesting when the nose goes straight up when you retract the flaps.
Fix told to me by Zach McNeil and it worked on my plane. Get some spray electronic cleaner, usually available at your auto parts store, and spray down the sides of the flap buttons. Give it a good spray several times. I did this and this fixed my problem. Might not work for you but worth a try.
On Saturday, April 30, 2016 6:39 PM, Bill Geipel <l129bs(at)gmail.com> wrote:
--> L29-List message posted by: Bill Geipel <l129bs(at)gmail.com (l129bs(at)gmail.com)>
Micro switch is stuck. Remove top wing strap and use long screw driver to actuate micro switches.
I can’t remember which wing??
On Apr 30, 2016, at 14:59, fougapilot <fougapilot(at)hotmail.com (fougapilot(at)hotmail.com)> wrote:
| Quote: | --> L29-List message posted by: "fougapilot" <fougapilot(at)hotmail.com (fougapilot(at)hotmail.com)>
Hey guys,
Just completed the annual and during the maintenance run up we discovered that the stab trim does not work. Worked great last time I used it, but no so much anymore. It refuses to move what so ever.
Here is what we know so far;
The motor works. We connected it directly to 24v power and it works well in both directions.
We think the problem may be with the control box just above the motor (the one containing the 4 contact/stop switches) or with the relays in the aft fuselage.
Anyone ever saw this before? If so your ideas would be greatly appreciated.
Cheers,
DF
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=455692#455692
gator?L29-List" target="_blank">http://www.matronics.com/Navigator?L29-Li> http://foru - NEW MATRONICS LIST WIKI --> http://wiki  tronics.com/contribution" target="_blank">http://www.matronics.com/contri================
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fougapilot
Joined: 20 Jul 2007
Posts: 88
Location: Flat on my back with minimum airspeed
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| Posted: Mon May 16, 2016 12:06 pm Post subject: Re: Stab trim |
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Alright, all fixed.
Turns out is was the switch in the LH wing that never sent the signal that the flaps were moving, so the trim worked perfectly - it didn't move.
Played with it a few times and all works perfectly now. I did clean it with some contact cleaner just to be safe.
Now I know where it is, so should it happen again I known where to look.
Thanks for the help.
Dan
C-FITA
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Dawg
Joined: 19 May 2013
Posts: 355
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| Posted: Mon May 16, 2016 12:23 pm Post subject: Stab trim |
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Score one for the Korean!!
Sent from my Samsung Galaxy smartphone.
-------- Original message --------
From: fougapilot <fougapilot(at)hotmail.com>
Date:05/16/2016 14:06 (GMT-07:00)
To: l29-list(at)matronics.com
Cc:
Subject: L29-List: Re: Stab trim
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Dawg |
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