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Old 08-09-2009, 10:13 AM   #1
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Default Servo Seizure

Anyone know why a servo would go into a convulsive fit? My steering servo did it yesterday, but it only seems to do it with the arm attached. I recharged the battery, looked for any sort of shorts, and everything looks good.
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Old 08-09-2009, 03:05 PM   #2
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Worn or damaged internals like bearin or bushing or gears. When the gears get worn the digital servos try & center so fast that it ends up laying ping pong between the extra slop in the gears & hooking the arm on ads extra force & amplifies the problem. If you grab one of the wheels to remove slop from the system it should stop the jerking,is that how it is? Jerking only at center is usually wirn gears & if it happens at other than center is probably bearing/bushing/broken case. What kind of servo is it? If you can get it warranty do it, if not just drive it till it dies wich may be never.
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Old 08-09-2009, 04:55 PM   #3
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That's it. Thanks Butch
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Old 08-09-2009, 11:46 PM   #4
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Originally Posted by NitroAmmo View Post
That's it. Thanks Butch
There are alot of reasons why this might happen .

One is broken down insulation of your rx battery which in turn releases a mangentic field and causes glitching.try tapping up your battery .

Another is worn out gears as slop in the gears will make the servo hunt for the centre and because alot of the digital servos have a very small deadband it will hunt and hunt as the extra gap doesnt line up .A bigger deadband also make the servo perform at lower rate .

Another is damping otherwise known as the braking) two step system of the servo which is in the programing if it is a programable servo like the hitecs.

But more likely its the gear problem .
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Old 08-10-2009, 05:35 AM   #5
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I will try putting some tape around it as the insulation has started comming off and the battery in my new truggy sits next to the reciever, unlike my Losi. Thanks Cobra
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