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Author Topic: CS 70 motor problems  (Read 348 times)

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Offline Dagobertono

  • Posts: 1
CS 70 motor problems
« on: May 08, 2020, 07:15 AM »

I have a CS 70 table saw that gets small bursts/spikes in rpm and excessive sparking. The carbon brushes looks good with plenty of meat left on them. I have messured the ohm on the commutator on side by side an opposite and i messsures consistent. I have sanded and polished the commutator. I have re-seated the brushes. Still it behaves more or less the same. Maybe a little better. Could my brushes be lemons or is this signs of a more Ā«sinisterĀ» problem?could it be a bad mosfet ect? The speed dial works. 

Anybody have anybideas?
« Last Edit: May 08, 2020, 08:55 AM by Dagobertono »

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