my makita 9403 belt sander has a major problem, in mid use the power dropped. i checked the belt and looked for anything obstructing the belt but found nothing. on restarting the sander i could here a clear popping coming from the motor along with large sparks, maybe the motor is burnt out or the brushes are worn? can anyone help
It could be a burnt motor, armature of field, or just the brushes. Since the brushes are so inexpensive, I would replace those first and see if that helps. Here is a breakdown of your tool and you can see what parts you need.
http://www.toolsandmachinery.com/index.php?cPath=2213_2300_2301_2315
Don- www.toolsandmachinery.com
April 2009
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