<HTML><FONT FACE=arial,helvetica><FONT SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">In a message dated 11/29/2003 10:31:19 AM Eastern Standard Time, rcaerobob@cox.net writes:<BR>
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<BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">Subj:<B>DuBro Servo Arms-JR Servos </B><BR>
Date:11/29/2003 10:31:19 AM Eastern Standard Time<BR>
From:<A HREF="mailto:rcaerobob@cox.net">rcaerobob@cox.net</A><BR>
Reply-to:<A HREF="mailto:discussion@nsrca.org">discussion@nsrca.org</A><BR>
To:<A HREF="mailto:discussion@nsrca.org">discussion@nsrca.org</A><BR>
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Wondering if anyone has used these? What's your experience on JR servos?</FONT><FONT COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"><BR>
</FONT><FONT COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">I have a couple that seem to not be seating fully down on the output shaft no matter how tight. Almost as if something is stopping the arm from going on all the way.</FONT><FONT COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"><BR>
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</FONT><FONT COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">Any thoughts, insights?</FONT><FONT COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"><BR>
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Bob Pastorello, Oklahoma<BR>
NSRCA 199, AMA 46373<BR>
<A HREF="mailto:rcaerobob@cox.net">rcaerobob@cox.net</A><BR>
<A HREF="http://www.rcaerobats.net/">www.rcaerobats.net</A><BR>
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Bob are you talking about the heavy duty plastic arms? If that's what you are talking about, I had a similar experience as yours, with one arm not seating firmly all the way. The retaining screw was the standard short that came with earlier generation JR servos. <BR>
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Didn't think that much about it since it was an aileron application. The good news is it was an aileron application, with its built-in servo redudancy which saved the plane possibly. Bad news is the output servo splined shaft tore off the servo.<BR>
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Two things: first, the short screw was a little too short and did not reach down far enough into the splined shaft. Second, The arms are thicker in the screw mount area and that exacerbated the problem. <BR>
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If you use these, make sure that the retaining screws go far enough into the shaft. Better yet, toss the arm and refit another that fits AND use a longer retaining screw. The heavy duty arms are very robust and I will continue to use them (with extra care thgough)<BR>
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Matt K</FONT></HTML>