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Old 04-03-2007, 06:28 AM   #1
norm68
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Default My new Hitec 5955 gears making grindy noises

Just wondering if it's normal for these servos to have a bit of a grind in the gears when you hand turn them slowly.

Bit like gggrrrrrrrrrgggrrrrrrrrrrgggrrrrrrrr as if there is a part of one of the teeth sets that is meshing a bit harshly.
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Old 04-03-2007, 06:41 AM   #2
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Default Re: My new Hitec 5955 gears making grindy noises

Quote: Originally Posted by norm68
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Just wondering if it's normal for these servos to have a bit of a grind in the gears when you hand turn them slowly.

Bit like gggrrrrrrrrrgggrrrrrrrrrrgggrrrrrrrr as if there is a part of one of the teeth sets that is meshing a bit harshly.
Sounds pretty normal. I have heard "ratchety" to describe the grinding sound that comes from a 5955, also. They shouldn't sound like that under their own power, though.
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Old 04-03-2007, 07:09 AM   #3
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Default Re: My new Hitec 5955 gears making grindy noises

Mine do that as well and had me very worried to start with until i grabbed one on another person's plane and it did the same thing

Nothing to worry about.
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Old 04-03-2007, 08:27 AM   #4
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Default Re: My new Hitec 5955 gears making grindy noises

sweeeet
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Old 04-03-2007, 08:33 AM   #5
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Default Re: My new Hitec 5955 gears making grindy noises

I have eight of them in my Yak and the all make the same sound .

Some people call it grinding I say its the sound of NO SLOP .

Great servos and they will last a very long time .

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Old 04-04-2007, 02:06 PM   #6
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Default Re: My new Hitec 5955 gears making grindy noises

I call the sound, "Crunchy".

All 5 of my new 5955s do it too...

Only have 18 flights on the airframe now, but they're working great so far. (knocks on wood).
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Old 04-04-2007, 03:23 PM   #7
Al Czervik
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Default Re: My new Hitec 5955 gears making grindy noises

Same thing here..my 5955's sound like Captain Crunch cereal but when you fire them up..WATCH OUT!!!
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Old 04-04-2007, 04:51 PM   #8
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Default Re: My new Hitec 5955 gears making grindy noises

All my 5955s make the grinding noise as well.
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Old 04-05-2007, 09:41 AM   #9
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Default Re: My new Hitec 5955 gears making grindy noises

Thanks dudes,

Good to know that it's just a feature!

Otherwise, these servos have some serious attitude. Yeah baby.
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Old 04-05-2007, 09:42 AM   #10
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Default Re: My new Hitec 5955 gears making grindy noises

NORMAL.....I hope......
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Old 04-05-2007, 11:20 AM   #11
Neogenesis
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Default Re: My new Hitec 5955 gears making grindy noises

I've seen a single 5955 power a aileron on a 35% bird by itself for well over a hundred flights. When they were removed because of selling the airframe....they were as smooth and tight as the day they went in. There is no doubt these servos are top notch. And yes....mine all make the grindy noise as well.



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Old 04-05-2007, 01:08 PM   #12
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Default Re: My new Hitec 5955 gears making grindy noises

Mine too. I was unerved too. But, they work grrrrrreeeaaaatt! I have 17 of them now.

I did have one with tight spots in the gears though... when I ran it will a current meter in line there were significant spikes in the current. Replaced under warranty.
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