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Rebuilding servos

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El Pirata

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  1. Bashing
I saw this pic posted by Christian:
9Mvc-740f-med.jpg


I noticed the servos taken apart and based on my track record any servo that has ever been put into that condition I have owned was never able to be successfully rebuilt. Is there some sort of trick to putting them back together so that they work. Don't tell me it's easy to rebuild them all I need is to do it right. Duh, I knew that one but I find it easier for me to trash the servo and for out another $60 for a new one rather than even thinking about trying to rebuild a wet servo.
 
EP, I guess the real issue is what you find to be difficult. I have taken apart a couple of servos to the level displayed in the picture. I have also put them back together and used one of them. Tricky? A little, if you do not pay attention to how the gears go together when you remove the cover and they happen to fall out. Impossible? Not entirely. Is it worth the time and trouble? Depends on whether or not you think the thing will function after the fact and whether or not you want to shell out $60+ prior to attempting the rebuild. I for one will take it down to spare parts and rebuild it prior to dropping the money for a new one, just in case I manage to bring it back to life. So far, I have only had one servo needing such treatment and it came back to life. The other instance...the servo was pretty much fragged beyond use.
 
20 days for an answer is better than 200 days. I see your point. You reminded me I need to start giving you the servos I tank in the hopes you can get them fixed like you do for the pullstarts that I no longer use.
 
Sorry so late on the response, some of us actually work whilst in the military, and I had been gone from the site for a little while.
 
Suddenly I'm reminded of that old video that Fast Eddy posted. The one where he was trying to hammer that Cirrus servo into oblivion. But the more he hit it, the less it broke. Man that thing was bulletproof.
Back on topic, I have rebuilt a few servos. I managed to toast the steering servo gears in my RC10GT when I first got it. The built in servo saver just didn't work well enough. It really seems simple once you do it a few times. Like Sky said, the big trick is getting the gears in the proper order. The gear on the control rheostat only goes on one way and that's what controls the whole thing. As Sky also eluded to, the other side is if you think the servo will work when you're done with that. If it got wet, it's quite possible the control board is damaged and there's no way to fix that. But there is a chance that when it drys it will work fine again.
 
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