I have a Black and Decker LST 136 grass trimmer. Its a 36 volt model and is apx. 4 years old. While using to trim,i noticed that the power was not as it usually is. them the unit would would start to die and i would have to shake to keep it going. then it stopped and a little white smoke came from the motor , located on the unit assembly on top of the cutting head next to the ground. Replaced the battery with a new one , but no luck getting it going. I wondered if it is possible it could be the PCB board and not the motor or is it for sure the motor ?
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When the magic smoke escaped from an electrical device, it's dead...
Seriously, smoke means something is dangerously overheating. To avoid doing further damage you should remove power from it and not attempt to use it until the problem has been found and fixed.
keshlam
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