Wire fitting for brushes on elec motor

Who's done that then?

The answer to your question is don't. Obtain a new pair of brushes.

Those brushes look to need replacing.

There are various gizmos these days to disconnect brushes once a certain wear level is reached. It is to prevent undue sparking at the commutator as the spring tension reduces with wear on the brushes.

Almost looks like that brush was inserted upside down. I would stick a new set in and be done with it.

You could be right but I will wait until I get the bearing to see it still works ok. I think the wiring was badly done at the factory as the wire to one of the brushes is just shoved down the side of the brush and emerges at the bottom and touches the revolving part of the motor, that doesnt appear to be correct (to me) and I know the saw has never been dismantled before.

Don't think so. You can see the hole in the top of the brush in the second photo where the wire ought to be. It's been bodged badly by someone somewhere. As you say though, needs replacing whatever.

Tim

Unless the wire is wrapped right round the brush, then it is most definitely upside down. The wire should be connected to the TOP.

The pigtails probably originally extended so far into the brushes. Now that the brushes have worn down the "wires" are showing, a bit like rivetted-on brake pads as they wear away.

Time for new brushes!

I'd say definitely. Quality control, eh? In the possible event of no replacements being available, I'd re-insert that one the right way up and it'd be good for a while yet.

"Almost looks like that brush was inserted upside down. I would stick a new set in and be done with it."

The brush is not upside down, both brushes have like a small hole on top where the wire should be connected. The one that appears to be upside down has had the wire rammed down the side to make a connection. I believe these chop saws are made in China for B&Q so done cheap and anything goes. There is plenty of wear left on the brushes but will replace if the saw works ok after I replace the bearing as I dont like the wire connection.

Ah; a factory bodge to get it out the door. Must be ok, then.