Blunzn Posted July 17, 2015 Share Posted July 17, 2015 not sure when it exactly started ... i updated to 1.2.2 and was training to balance on the stand with front/back movements ...now since a few days my 9b1 E sounds like this -> https://www.youtube.com/watch?v=flQxg27Egywthe noise comes only when changing directions with medium/high acceleration, not during slow direction changes or while riding ... atm ...i have about 80km on the wheel with one medium speed crash, other than that just a few low speed fall-overs in the beginning.changing riding mode from 0 (my prefered setting) to 9 did not help, neither did resetting the sensors.anybody had similar problems ? not sure if its a loose hall sensor/magnet inside the motor or just some other issue.thx Link to comment Share on other sites More sharing options...
esaj Posted July 17, 2015 Share Posted July 17, 2015 If it only comes when changing direction, it sounds like something's moving around inside (ie. it continues in the previous direction after you change the direction and hits something). Loose things inside the motor probably should make noise all the time when the tire's turning, so probably something else. Can you contact the reseller and ask them for instructions? Does the warranty let you open the covers without voiding it, to see what's going on? Link to comment Share on other sites More sharing options...
Blunzn Posted July 17, 2015 Author Share Posted July 17, 2015 its a standard ninebot warranty, i'll try to reach the main reseller on monday.there seem to be no loose parts between cover and motor/tire, so its probably something inside ...its definitly not the battery, i tried my second battery with fits much firmer. Link to comment Share on other sites More sharing options...
dmethvin Posted July 17, 2015 Share Posted July 17, 2015 Is it a rattling sound of something loose, or more like a creaking of two plastic parts rubbing against each other? I am wondering if the case is flexing and making something like the light rings "tick" as they move. Link to comment Share on other sites More sharing options...
Blunzn Posted July 17, 2015 Author Share Posted July 17, 2015 its not a rattling or squeaking sound, just a metalic click when you change direction with some momentum. sounds more like metal or magnets rearanging or bumbing together, not like plastic.i removed the LED, outer cover-ring, pads and the bolts of the pedals. does not matter which side i put my weight on, neither does standing loose or squeezing the calves together change the sound.i didnt ride it outside the last 2 weeks, cause i had back pain. so i focused mostly on going slow inside, getting better balance, doing slow slalom, learned 180° turns and tried balancing with forth/back movements. so no crashes that suddenly ruined something ...is it possible to downgrade the firmware back to 1.2.0 firmware ? i didnt had the problems before upgrading Link to comment Share on other sites More sharing options...
Gimlet Posted July 18, 2015 Share Posted July 18, 2015 Difficult to be sure from the video but as it's such a click on direction change I would suspect that the wheel nuts may have loosened a little so that the split clamping shim/washer beneath them is allowing the axle to move a little.Not heard of a loose nut problem on a bot before though, it's more a feature of IPS and Gotway. If you check and find the nuts have loosened of a bit I suggest you remove them completely, clean the threads and refit with a little Locktite to prevent them loosening off again. Link to comment Share on other sites More sharing options...
Blunzn Posted July 18, 2015 Author Share Posted July 18, 2015 the axle & nuts were my first thought too, but hard to check ... and no clue how the split clamping would open without video/photo guide.all i found was speedyfeets video and this indian photo quide of a tear down ( http://blog.makeystreet.com/ninebot-one-tear-down-to-fix-a-puncture ) which was quite interesting (dust on the mainboard, notches an the battery) but they dont even go as far as to open these nuts.as the wheel is still on warranty i better dont fudge around ... next week the E+ should arrive, after a customs problem, so maybe i'm lucky and there is some sort of upgrade possibility ... Link to comment Share on other sites More sharing options...
Gimlet Posted July 18, 2015 Share Posted July 18, 2015 Most wheels use similar clamping methods. Here are the split tapered washers on my M10. The top one is in position in the slot on the right of the wheel. Link to comment Share on other sites More sharing options...
Blunzn Posted July 26, 2015 Author Share Posted July 26, 2015 the Mechanik meant its just the pedals. I'll see if it gets worse. Link to comment Share on other sites More sharing options...
vag72 Posted July 26, 2015 Share Posted July 26, 2015 I would recommend to dismantle the wheel and carefully inspect the parts. Then reassemble. The internals are quite simple so it shouldn't be a problem to find out the reason for this knocking sound. Link to comment Share on other sites More sharing options...
high'tems Posted July 27, 2015 Share Posted July 27, 2015 Hello Blunzn,Did you get some information from your reseller?We are in France and selling some Ninebot One E and E+. Please have a look of this video, we are changing the tube but you could see how to open and close a Ninebot OneIf you have any question, please let me know. Link to comment Share on other sites More sharing options...
Gimlet Posted July 27, 2015 Share Posted July 27, 2015 Here is a picture of the split clamping washer on my MCM but they all work the same way despite some being a different shape. Link to comment Share on other sites More sharing options...
Blunzn Posted July 27, 2015 Author Share Posted July 27, 2015 i looked at the axle, but the nuts seem to be steady as a rock. the ninebot axle nut is additionaly secured with 2 metal blocks - 4th picture from the top - http://blog.makeystreet.com/ninebot-one-tear-down-to-fix-a-puncture and you see it also on the Speedyfeet tear down video.from the 2 bolts securing the pedals, one felt a bit "looser". not really loose but one was way easier to remove (without a hammer). so it is probably just the pedal. Link to comment Share on other sites More sharing options...
Gimlet Posted July 27, 2015 Share Posted July 27, 2015 I see. They have a tab washer to stop the nuts from loosening off. That's a good idea but even those can loosen if the tabs aren't bent up enough to secure the nut. Link to comment Share on other sites More sharing options...
Blunzn Posted August 11, 2015 Author Share Posted August 11, 2015 got my old 9b1 E back from my little brother for the weekend. the pedalsound is still there but did not get worse. its quite battered up from crashes and jumping, but rides on like a champ. Besides the handle it really seems like a tank. Link to comment Share on other sites More sharing options...
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