Thank you Gerald and Tim!!!
Before lunch, my wife encouraged us to purchase the latest version of
the Dewalt ROS single speed (the D26451K). It comes with a 3 amp motor
and is slightly more than 10% heavier than the previous models. The
palm grip is slightly oval shaped and is perhaps slightly easier to
I tried an experiment on the dust bag. I coated the joint between the
cloth and the plastic and all of the seams with black plastic tool dip
until there was an obvious plastic layer on top of the cloth. Time will
tell if this works as effectively as the duct tape approach advocated
For what it is worth, I have found that if I dampen the O-ring that
grips the dust bag adaptor before I install it, it is much less likely
to drop off.
After lunch I converted the DW423 to single speed as per my reading of
your suggestions. In fact, I unsoldered the speed controller from the
leads connected to it. I connected together the neutral leads which
entered one side of the controller and covered them with shrink tubing.
Then I connected the leads from the power switch and brushes in a
similar fashion. The machine now works again, just as you said it would.