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Date: Mon, 17 Jan 2011 09:57:07 -0500
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Subject: Re: [LML] elevator trim speed (TruTrak)
From: Colyn Case <colyncase@earthlink.net>
In-Reply-To: <list-4675815@logan.com>
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Paul, in your system are the trim servos themselves made by tru-trak or =
just the auto-trim box?   Given my understanding of the auto-trim box , =
the speed is completely controlled by the trim servo, which in my case =
is a ray allen..

On Jan 15, 2011, at 10:10 AM, paul miller wrote:

> On my Legacy I have the 2004 Trutrak autotrim system with a DFC250 28v =
and all works well.  The trim speed is very fast such that a bump of the =
switch sets up a big pitch change.  I measure the full up to full down =
travel time which is adjustable on the module from 5-8 seconds =
only--very fast.  My certified aircraft run 30-40 seconds.  I wrote =
Trutrak and they said the unit has to come back because it says 24v but =
may be wired for only 12v.   I measured the voltage to the unit and it =
is fed 28v.  If you have one and have similar trim speeds you might want =
to think about a fix because there is nothing in the wiring diagrams =
that would suggest an error in installation.  The diagram inputs show =
12-24v to the unit.  I'd be interested in travel times for other Legacy =
trims for comparison.
>=20
> Paul
> L2K-186 =20
> --
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