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HelicopterMain Discussion › Strange Servo Behavior
06-17-2014 03:46 AM  3 years agoPost 1
Funky Trex

rrElite Veteran

Westerville, OH - USA

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I was flying my e5 this weekend. In the 2nd flight, it powered up fine but when I took off, the heli flopped all over the place and I quickly set it down. I checked the heli (still in hold mode) and my elevator servo had very little torque. It moved fine with my TX controls, but I could hold the servo still or move it by hand with very little force. The other 3 servos were acting normal. I shut off the heli and TX. After powering it back up, everything responded normally and all of the servos had full torque. After stressing the ELE servo by hand a few times and triple checking all of the controls, I flew it. The heli flew fine for 3 more flights.

I have been flying for about 7 years with many different servo/gyo/rx combos. This is the first time I have had a servo respond this way. Is this a sign of a problem or just a fluke? Any help would be greatly appreciated. If this is an obvious sign, I could really use the help.

E5, RJX cyclic/tail servos, 7200bx, cc120, Scorpion motor. Straight 2s lipo to RX with 2 connectors. All plugs are hot-glued in the 7200. There are around 50 flights on this heli.

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06-17-2014 04:15 AM  3 years agoPost 2
Josh Kussman

rrApprentice

Superior, NE

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If all the wires look clear of damage and all plugged in I would replace it. Talking for my self I would rather change a servo than hAve it go crazy in flight, you would be replacing it after crash and then some.

If I can't trust electronics it's good bye for it. But that's me.

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06-17-2014 06:48 AM  3 years agoPost 3
AWittleWabbit

rrElite Veteran

O.C., CA

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Dump it to Crumpet.
I agree with the above. I would replace it for piece of mind. I had a tail servo act strange like that. At the time I assumed it was a glitch since the behavior went away. It gave out finally a few flights later.

Maybe you can send it in for a check up?

Heli-itis sufferer.

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06-17-2014 03:53 PM  3 years agoPost 4
balsabasher

rrVeteran

Central Ohio, USA

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I would replace the servo. Could be a power wire to the servo broken/breaking, a bad solder joint, dirty pot, or intermittent electronic issue in the servo.

Blades; what goes around, comes around!

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HelicopterMain Discussion › Strange Servo Behavior
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