this sander has started to mis-behave.
Instead of running smoothly (if a sander can be said to run smoothly) the
speed is variable and it sounds generally rough.
I have taken it apart and there seems to be no obvious visible problem, and
the brushes still seem to be of a reasonable length.
The speed variation gives the impression of 'misfiring' - it speeds up,
misses a bit, speeds up again.
It does this on all speed settings.
Anyone had/solved this problem?
These days I guess having B&D tools serviced is not cost effective - even
years ago they used to prefer to trade them in against new at the service