Gimlet Posted January 12, 2015 Share Posted January 12, 2015 I'm not sure if other cheap Chinese imports are the same but this is how to re-calibrate an EYU.CO. First open the case. Disconnect the battery side to make the handling more simple. This isn't always possible, it isn't on my IPS eu's. Remove the control side of the case from the wheel. There is enough slack on the wire behind the electronics cover to pull it away slightly and swivel it around to work on it, be careful not to put any strain on the wire connections. You can then unscrew the cover plate to expose the control board. The two lengths of white wire need to be threaded through the hole in the side of the casing to the outside. Then the wheel needs to be reassembled carefully easing the slack of the motor supply wire back behind the electronics cover. To re-calibrate just stand the wheel upright, I found a workmate to be the perfect support to allow the wheel to spin freely. Strip the ends of the two protruding white wires and short them together whilst you turn on the wheel. The wheel spins about 3 revolutions in each direction then stops and beeps. Turn it off and the job is complete, check it works as expected. If all is well grip the stripped wire ends with a pair of pliers and ease the insulation back a little then snip off and pull the insulation forward again to protect the ends. You cah add a dab of glue or mastic to seal it if you like but it shouldn't be necessary. Poke the wires back in and you're done. Whilst you have the unit apart you can check the torque on the wheel nuts with a torque wrench and stilsons. This will probably be different for each manufacturer and you will need to contact them for the correct settings. The EYU are set to 20KGF and 1.0KGF for the one with the wire. I know that on the IPS the torque is critical and should be set to 75-85nm, to loose and you get wheel wobble at speed and too tight and the peddle lift warning doesn't happen and you get sudden failure sometimes with as little as one beep warning. Link to comment Share on other sites More sharing options...
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