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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.<br>
<br>
<div class="moz-cite-prefix">On 2/13/2017 12:43 PM, Earl Haury via
NSRCA-discussion wrote:<br>
</div>
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<div>Dan</div>
<div> </div>
<div>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.</div>
<div> </div>
<div>Earl</div>
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<div style="font-color: black"><b>From:</b> <a
moz-do-not-send="true"
title="nsrca-discussion@lists.nsrca.org">Daniel
Underkofler via NSRCA-discussion</a> </div>
<div><b>Sent:</b> Monday, February 13, 2017 11:58 AM</div>
<div><b>To:</b> <a moz-do-not-send="true"
title="nsrca-discussion@lists.nsrca.org">NSRCA</a> </div>
<div><b>Subject:</b> [NSRCA-discussion] Futaba BLS173SV
centering problem</div>
</div>
</div>
<div> </div>
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<div dir="ltr">Guys,
<div>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. </div>
<div> </div>
<div>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?</div>
<div> </div>
<div>I was going to try reducing the deadband from .36 to
.20.</div>
<div>Recommendations on programable parameter settings
improve centering?</div>
<div> </div>
<div>Thanks, Dan</div>
</div>
<p> </p>
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