Did you check the age of the post? I have not but most of them seem to be
years old when they suddenly reappear like some spectre.
Brian

--

This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please
Note this Signature is meaningless.!
"Paul" wrote in message
...
Neil wrote:
I can't get brushes out of my makita miter saw


OK, now that we've seen the Youtube video, we can
see how things can "go wrong" in there.

First of all, brushes don't always wear equally. The
last brush repair I did, one brush had twice as much
wear as the other brush.

We can use that to advantage.

The less-worn brush, should be removable as in the
Youtube video. It should just come out. Now you have
an intact sample to look at.

What's happened to the knackered brush, is all the
carbon got worn off it. The brush was no longer
long enough, to be supported by the guide rails.
Just the metal bit on the end of the spring is
left.

To remove it, the spring needs to be rotated,
until the metal portion aligns with the guides.

The problem is, the metal bit (being on the end
of a poorly controlled spring), it can be canted
at an angle. This prevents the metal bit from
being willing to go back up the guide rails.

If the brush had stayed in the guideway, then it
would easily have come out. And enough carbon
has to be left on the end of the brush, for it
to come back out.

*******

Your manual should have a procedure for
"armature replacement". If there is a commutator
failure (the shiny copper contact area), or the
wires had a short in the windings, sometimes the
armature (spinny part in the center of the motor)
needs to be replaced. This will require
taking the saw all apart. But, by doing so,
when you have access to the armature, you will
also be able to see the brush-end and use pliers
or tweezers to send it back up the guideway.

What's the worst thing that happens to brushes ?
When they burn the brush holder. This has been
known to ruin cheap appliances in the past. Fortunately,
the other companies learned from this, and the
materials used today are more robust.

So start by removing the easy-to-remove brush,
and visually examine it, to see how it could
break free of the guideway and get stuck in there.
You may be able to figure out how to get it
aligned again. Or, you may decide that for
least damage, taking the saw apart, pulling the
armature (carefully!) is the right answer to gaining
access.

Good luck,
Paul