Question about Makita LS1040 - 10In Miter Saw
This is usually brush related. It could be that the rotor needs to be machined round or that there is damage to it. Check the brushes first. Disconnect power, remove the cap over the brush and pull it out. Remember which way it came out. Check for length of brush, should be more than 1/4" long, check the spring to see if it is discoloured. Check the end of the brush, it should be smooth also. The sparks are an indication that the contact is not good for some reason.
Posted on Apr 12, 2015
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Posted on Jan 02, 2017
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