Hong Kong RC Sailplane Forum 香港滑翔機發燒友論壇

servo centering problem repair
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Author:  K.Y.Mak [ 06 Mar 2006 11:58 pm ]
Post subject:  servo centering problem repair


Have anyone tried to repair servos that have centering problem ?
Are there a sensor some where inside the servo, which can be repaired with some cleaning up !
I have a few servos with the same problem :(

Any suggestions ?

Author:  kin [ 08 Mar 2006 10:28 am ]
Post subject: 

Buy new ! your plan is a big money !!!!!!!!!!!!!!!!!!!!!!!!!

Author:  K.Y.Mak [ 08 Mar 2006 12:26 pm ]
Post subject: 

It's just a contering problem.
The plane will not drop off the sky because of that!
All it does is simply slows dowm the plane :(

My servos are soldered to the connecting cables, which are not that easy to change :x

Author:  Ah Pong [ 08 Mar 2006 04:53 pm ]
Post subject: 

Hi Mak,

I have little experience on repairing servo.

The centering problem usually comes from three reasons. First, the contact in the VR. Use contact cleaner to clear up the dirt on the little carbon surface in the VR.

Sometimes, the biggest gear in the servo would lead to the centering problem, which you won't note. Do you remember there has a little slot at the tip of the shaft of the VR? In fact, all metal gear servo (for example, Futaba S3102) has a little nylon nut in the middle of that big gear. Should the little nylon is worn out, that would cause the centering problem, and you could never see the worn out part in the gear.

Lastly, the position of the VR is lossen. A drop of CA could fix it.

Hope this could help.


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