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</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'>I had a serious problem with aluminum arms on certain JR servos…..the bag works very well.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'>Just hold a piece over the spline and press down on the arm….fixed.<o:p></o:p></span></p><div><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'><o:p> </o:p></span></b></p><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'>David Harmon<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'>Sperry, OK<o:p></o:p></span></b></p></div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext'> NSRCA-discussion [mailto:nsrca-discussion-bounces@lists.nsrca.org] <b>On Behalf Of </b>John Gayer via NSRCA-discussion<br><b>Sent:</b> Monday, February 13, 2017 1:57 PM<br><b>To:</b> General pattern discussion <nsrca-discussion@lists.nsrca.org><br><b>Subject:</b> Re: [NSRCA-discussion] Futaba BLS173SV centering problem<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'>Take a small piece of a plastic bag and sandwich it between the splines and the output arm. That will reduce/eliminate the slop. Some plastic arms don't fit right either.<o:p></o:p></p><div><p class=MsoNormal>On 2/13/2017 12:43 PM, Earl Haury via NSRCA-discussion wrote:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><div><div><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;color:black'>Dan<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;color:black'>�<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;color:black'>I find that 0.13 dead band works well. Gear wear isn�t usually a problem with the 173, the Futaba aluminum arms don�t fit the splines tightly though � you might check this if using these arms. Lots of folks use the 173 on bipe ailerons (which tend to be smaller). Some time ago I measured servo current draw on each surface and ailerons were by far the highest � as Peter notes, big surface. At 7.5v they might be OK, I use the BLS171 which has 60 or so more oz-in torque. I�ve also found that servos slow a fair bit whenever current draw exceeds 60% of stall current � another reason to err on the high side.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;color:black'>�<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;color:black'>Earl<o:p></o:p></span></p></div><div><div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black'>�<o:p></o:p></span></p></div><div><div><p class=MsoNormal style='background:whitesmoke'><b><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black'> Daniel Underkofler via NSRCA-discussion <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:whitesmoke'><b><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black'>Sent:</span></b><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black'> Monday, February 13, 2017 11:58 AM<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:whitesmoke'><b><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black'>To:</span></b><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black'> NSRCA <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:whitesmoke'><b><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black'>Subject:</span></b><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black'> [NSRCA-discussion] Futaba BLS173SV centering problem<o:p></o:p></span></p></div></div></div><div><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;color:black'>�<o:p></o:p></span></p></div></div><div><div><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;color:black'>Guys, <o:p></o:p></span></p><div><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;color:black'>I'm new to Futaba programable servos.� Have new BLS173SV on ailerons and have a bit of "slop" in the servo output.� I'm confident that the majority of the slop is in the servo, not the linkage.� <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;color:black'>�<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;color:black'>Should I need to replace gears after only a couple hundred flights?� Hard to tell, but seems like there is too much slop with power off, so adjusting settings may not be the answer.� Can't find the gearset on Futaba or Tower website anyway.� Anybody know the part number and how/where to order?<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;color:black'>�<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;color:black'>I was going to try reducing the deadband from .36 to .20.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;color:black'>Recommendations on programable parameter settings improve centering?<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;color:black'>�<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;color:black'>Thanks,� Dan<o:p></o:p></span></p></div></div><div class=MsoNormal align=center style='text-align:center'><span style='font-family:"Calibri",sans-serif;color:black'><hr size=2 width="100%" align=center></span></div><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;color:black'>_______________________________________________<br>NSRCA-discussion mailing list<br><a href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br><a href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><o:p></o:p></span></p></div></div></div><p class=MsoNormal><br><br><br><o:p></o:p></p><pre>_______________________________________________<o:p></o:p></pre><pre>NSRCA-discussion mailing list<o:p></o:p></pre><pre><a href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><o:p></o:p></pre><pre><a href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><o:p></o:p></pre></blockquote><p class=MsoNormal><o:p> </o:p></p></div></body></html>