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Old 02-11-2008, 12:19 AM   #1
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Default Killing Servos

Just wondering about people's experiences with killing servos. Through my own stupidity of not checking my EPA's, I seemed to have killed my throttle servo yesterday.

It's a JR Z9000S. The servo responds and moves correctly but as soon as you put any load on the horn, it slips, which leads me to believe a gear is stripped. I've pulled it apart but I cant see any dead teeth. So I'm just wondering if there is something that it's more likely to be?
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Old 02-11-2008, 12:36 AM   #2
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Check the casing for cracks because a crack can cause the gears to spread under load. Especialy if the servo is mounted very close to the chasis but on a MBX5R it should have plenty of room.

Other than that all i can sugest is a stripped servo horn if its plastic.

Possible bearing failure in the lower case, other than that im clueless.
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Old 02-11-2008, 01:43 AM   #3
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Haver it checked out by someone or send in form repairs.
Better yet get a ACE DS1313 or 1015 servos, closest to bullet proof you going to get.
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Old 02-11-2008, 04:05 AM   #4
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I only did it yesterday so haven't had a chance to get it checked. Don't think it's a cracked case Brad, everything was pretty tight when I took the case apart but I'll give it a closer look. I can order a replacement gear set for not too much, but if it's not going to fix it, I wont bother with it.
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Old 02-11-2008, 10:30 AM   #5
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if all the gears are fine do what reaper siad and checl out the horn
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Old 02-11-2008, 10:51 AM   #6
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Jr warrants their servos for 3 yrs, send it in and they'll fix or replace it
Or, do as suggested earlier, go Ace
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Old 02-11-2008, 05:34 PM   #7
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The horn is fine, it's an aluminium one and I checked with a second horn to be sure. I've been quite happy with JR servos, I only killed this one through my own stupidity so I don't see a reason to change. I know about the 3 year warranty, but if I send it away and they decide it's my fault, are they going to charge me anyway or simply send it back?
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Old 02-11-2008, 05:36 PM   #8
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JR has been very good to me in the past. If you DL the return form off their web, try to be as vague as possible though. You should be good to go
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