Carbon Brush And Holder 147097-09

1. Removed the brush holder to find a section of the brass burned away.
2. Replaced with two new holders.
3. Saw started fine, but brake was not working.

After attempting the Dewalt suggested remedies, short of replacing the armature and or field winding, I rechecked both holders. Found one of the brass spade lugs, on one of the holders, had passed by, instead of into the receiving connector. This particular lug was part of the brake circuit, had it been the other lug, the saw would not have started at all. Make sure the two lugs on each holder are lined up and watch that both mate properly with the field connections. The saw is now working like new.

Remove motor end cover. replace brushed and brush holders. Replace motor end cover.
done

1. Removed the brush cover piece.
2. Removed the brushes wires.
3. Pulled out the old brushes and holder out.
4. Cleaned all the dust out of the brushes cavity.
5. Pushed the new brushes holders in.
6. Pushed the new brushes into the brush holder.
7. Screwed the brush holder cap into place to hold the spring tension.
8. Placed the cover piece back on the saw.

Pull armature replaced bearing and brushes

Followed ereplacementparts video. It was perfect.

removed the brush holder and installed a new one including a new brush

Removed brush put new one in!!
Very easy

Installed new parts

Thanks for your patience in sending and replaceng the switches .Removed both brush holders and replaced them as well as the brushes..
I also replaced the switch since I had disposed of the old one.

1. Removed drive from saw and and tested continuity of each coil through the brush holder. One coil tested as open.
2. Could not find the part available so continued looking at motor repair videos and ran across the one on lignum buildup. Lignum vaporizes out of wood dust on the hot brushes and condenses on them when they cool. It is a great electrical insulator.
3. Removed coil assembly from motor casing and unplugged brush holder, Both coils tested fine at about 0.7 ohms. I had to scrape and scrape the point of my meter probe against the inside of the brush holder to get a reading. The lignum is clear (not visible). Ordered holders and brushes.
4. Used emery paper on commutator (just in case) and reassembled motor with new brush holders and brushes. Now it is running for another 10 years for under $40 instead of $500 replacement.