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HomeAircraftHelicopterBeginners Corner › Weird 9252 servo movement
04-24-2013 02:06 AM  5 years agoPost 1
Heli143

rrElite Veteran

Phenix City, Alabama

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While test flying my Predator with newly installed four bladed head I found the Heli acting strangely in that it hovered smoothly one second then all over the place the next.

I checked everything and found one servo acting weird. I disconnected it from the Rx so it had no input. when I turned it to one side and let go it snapped back to center. It does this from both sides.
I've never had a servo do that and have no idea what is causing that. The gears are like new still.

Anyone ever experience this or know what the cause could be?

Thanks in advance!

Roy Mayoral

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04-24-2013 05:22 AM  5 years agoPost 2
dkshema

rrMaster

Cedar Rapids, IA

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Could be a bad motor (broken armature winding) or a bad feedback pot. Possibly a bad or broken cable.

Several years back, I had a relatively new, low-time S9254 act up...this is what I found:

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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04-24-2013 11:29 AM  5 years agoPost 3
Heli143

rrElite Veteran

Phenix City, Alabama

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thanks Dave!

I will not be flying the heli until I can replace the servo. I have one on the way

Roy Mayoral

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