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Home✈️Aircraft🚁HelicopterHelicopter Main Discussion › 1 new servo erratic
04-25-2014 10:39 PM  6 years ago
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soberflierross

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Cottage Grove, MN USA

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1 new servo erratic
I bought 3 new rjx 0521thv servos and installed them in my protos max

When ever the motor is run 1 servo jumps up or down and sometimes doesn't move at all, once you hit throttle hold or put 0% in for a throttle curve the servo is fine

I switched channels with another servo and it just does that with this one servo anybody ever heard of this, its new to me
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04-25-2014 10:51 PM  6 years ago
Funky Trex

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Westerville, OH - USA

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I had a mini rjx servo act erratic out of the box somewhat similar to what you are describing. I sent it back and the replacement acted fine like the other 2 I bought with no more odd behavior.
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04-25-2014 11:09 PM  6 years ago
JEEPWORLD2002/2

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Blue Bell, Pa

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sounds like some thing loosen up on inside I would drop the bottom cover off and look make sure the wire didnt break off the solder joint or a part fall off the board ?? look around might be an easy fix if you see nothing bolt back up and ship it back.Trex600n,Trex500,MR25,MikadoLoGo5003d/KDE,Goblin 380XNova,CastleCreations,Ys,JR XG8,Tags Mini XBus Dmss//FAA# FA3NYC9TAP
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04-25-2014 11:30 PM  6 years ago
icanfly

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ontario

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The servo gears could have undetected dirt/ machining chips in them.
A heli of mine had a similar problem. I cleaned out the gears, test flew yesterday after a week of sitting, heli was fine, no, amazing.
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04-26-2014 01:22 AM  6 years ago
petercp4e

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Oakham, Ma. USA

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Sounds like you have a choice. Either send it back or do surgery. To me this is a no brainer. I like brand new equipment, that I pay good money for, to be at 100% out of the box. Sure, anyone that has been flying for a while has had to work on servos. You could probably fix it, but why should you have to if it's new. Make the manufacturer stand behind their product. My vote is send it back.
Pete <:-}
Warning: Flying an RC helicopter is addictive and may become hazardous to your Wealth!
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04-26-2014 01:40 AM  6 years ago
soberflierross

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Cottage Grove, MN USA

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I already have another one coming in the mail, the one will be going back to hd, not worth the risk of messing with it
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04-26-2014 01:42 AM  6 years ago
Clearance

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Rain Forest of Western Canada

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Have a new RJX FX0391HV mini cyclic servo act erratically on the bench as compared to the other two, within a few minutes it died - even though it was purchased 7 months ago, RotorQuest replaced it without question when I sent it back to them.
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