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Electrical System
Motor
The motor used in this scooter is an efficient brushless DC motor with a permanent magnet
made of rare earths, which is integrated with the rear wheel.
The motor does not require maintenance in daily riding. However, attention should be paid
to the status of installation and tightening nuts on the motor shaft.
The motor is integrated with the rear wheel. Attention should be paid to inspection of the
tire pressure during maintenance. Driving at insufficient tire pressure will cause damages to
the motor hub.
The motor should be stopped immediately when the motor is abnormally hot, smoking,
smelling abnormally, sounding abnormally or has other abnormal conditions.
Check the battery for normal performance and make it charged fully before maintenance of
the motor system.
Check the Hall cable sensor connector, Hall motor connector and controller connector for
shorting due to moisture, looseness or bad contact before maintenance of the motor system.
Attention should be paid to proper maintenance of the motor system and appropriate
protection measures for avoidance of the electric shock, since the high current and voltage
are involved.
The Hall cable sensor and Hall motor sensor should be inspected for shorting before
replacement of the damaged controller with a new one, otherwise the new controller that
has been installed will get damaged again.
The motor temperature rises higher and faster in a high-altitude area than in a plain area.
Thus the scooter operating for a long time will easily result in the situation where the motor
becomes abnormally hot and even the motor fails.
Pay attention to the wire polarity in installing the battery or controller.
Summary of Contents for Kick Scooter KQi3
Page 1: ...V1 0 0 1 Kick Scooter KQi3 Service Manual Jiangsu Niu Electric Technology Co Ltd...
Page 20: ...V1 0 0 20 headlamp Section 4...
Page 25: ...V1 0 0 25 handlebar Section 5...
Page 27: ...V1 0 0 27 handlebar Section 5...
Page 34: ...V1 0 0 34 controller and battery pack Section 7 controller...
Page 35: ...V1 0 0 35 Lithium battery pro version sport version...
Page 42: ...V1 0 0 42 rear wheel and rear wheel fender Section 8 controller...
Page 49: ...V1 0 0 49 rear wheel and rear wheel fender Section 8 controller...
Page 59: ...V1 0 0 59 Wiring Diagram...
Page 60: ...V1 0 0 60 Fault Codes Dashboard Display and Screen Display in the Event of a Vehicle Fault...
Page 62: ...V1 0 0 62...
