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Old 01-28-2008, 12:52 PM   #1
Drewi216
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Default odd gear noises

when my i2 is in RBM and i am moving it, it makes odd rattling (sp?) noises. It also does thes when one of the wheels goes from forward to reverse, or when i am moving less than one mph in one direction, does any one elses segway do this?
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Old 01-28-2008, 01:32 PM   #2
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I think that your question is: When I am not standing on the Seg (an I2) and I am moving it under power, I get a "rattling" sound.

If that is your question then it is behaving normally and you are getting "stick shake". The Seg is telling you that it does not like traveling as fast as you are moving it without someone standing on it. Your only option is to move it much slower so that you do not trigger this response in the Seg.

The speed at which this occurs is too low for MY standards as well as it makes it very difficult to move it with the power on in public without making it look like you are mistreating the machine.

If I have misunderstood your question, I apologize and will stay in lurk mode.
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Old 01-28-2008, 05:24 PM   #3
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you forgiven lol, its not the sitck shake warning, this is more subtle, its more along the lines of a gnashing rattling noise, i know that the RBM speed limit is very low, but i am talking about barely moving the machine
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Old 01-28-2008, 05:28 PM   #4
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let me elaborate on this, im not going from top speed to reverse, i am saying from a dead stop, slightly moving forward and backwards generates the same noise, it sounds like the gears have to much play inbetween there teeth and i can hear them catching on each other, but the way the gears in the segway are made contradict this fact (the swiss "watch" gears that slide on each other), and the other I2's that i have seen do not do this
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Old 01-28-2008, 05:58 PM   #5
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When I had odd gearbox noises, this was my solution....

http://forums.segwaychat.com/showthread.php?t=16022

http://forums.segwaychat.com/showthread.php?t=16402
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Old 01-28-2008, 08:09 PM   #6
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Quote:
Originally Posted by JIO View Post
Jio, the old pictures have evidently been moved, resulting in dead links. Could you load them onto SC and post again?

Did you ever have to actually install the replacement parts from INC, or did the cleaning and rotation of the old elastomeric coupling continue to work well? Does the coupling lift off easily?
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Old 01-28-2008, 08:44 PM   #7
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Default I doubt anything is wrong

It is very typical for a new owner to get the machine home and then call me saying they are hearing "the rattles". In other posts you may read about rattling that is "loud" and "embarrassing" and that is certainly trouble. If you're hearing subtle rattles while standing almost still I think this is completely normal and most all machines do it. When you were testing the machine you were probably excited and not paying any attention at all to the sounds or maybe there was a radio on or street noise. Most new owners in my experience have noticed what you're noticing and it is completely fine.
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Old 01-29-2008, 03:05 PM   #8
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The rattle you are hearing is called gear lash, or backlash. You can learn more here.

The gist of it is that there is a gap between the gear teeth and when the motors rapidly change the direction of torque, the gap is closed causing a little click or rattle.
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Old 01-29-2008, 06:21 PM   #9
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would this also be true for moving only in one direction? i know the segway rapidly apllies and removes power to the motors, would that be the cause,,... turn up the volume (this is the first time i have embeded a video, forgive me if this doesnt turn out right) <object width="425" height="350"> <param name="movie" value="http://www.youtube.com/v/XIPWz_VxpJU"> </param> <embed src="http://www.youtube.com/v/XIPWz_VxpJU" type="application/x-shockwave-flash" width="425" height="350"> </embed> </object>
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Old 01-29-2008, 06:24 PM   #10
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srry bout that, here is a link
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