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Clean the foreign body on the motor
Clean or replace the bearing
Check the carbon brush and commutater for worn, whether spring is normal
Whether the connection is correct and firm.
Brush carbon powder on shift plate and shift device.
Check magnetic brake air gap.
Test electric steering and its components.
Check tiller recuperating function.
Check whether the wheels fastening
Check wheels for wear and damage
Test displays and controls.
Check the function of micro switch and sensor.
Check electric wiring for damage. Make sure wire connections are
secure.
Test Emergency Disconnect switch.