Motor sparking after new armature and brushes installed

lundi 28 septembre 2015

A friend has 2 dewalt table saws, both machines had armature problems after long continuous use.
I checked the fields and both seemed OK, so he ordered new armatures and brushes for both.

All put back together and one sparks a little the other sparks a lot (so he tells me).

Now I know they will need a little while to bed in properly (a minute or 2).
I'm not sure how long he's run them for yet.
I'll check the brushes are installed right and the springs are doing their job properly and keeping contact.

Anybody got any other ideas I should check for?

Pete


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