23
9. To clean the commutator, press the commutator cleaning stone against the commutator
and rotate the armature by turning the spindle shaft by hand. Continue for a minute
or until the commutator is clean and shiny.
10. Reconnect the power wire, insuring that the wire path is correct (See figure 15), Re-
install the carbon brush holder into the slot on the motor housing and slide in until the
screw tab hits the stop, then install the screw using light pressure to prevent it from
stripping.
Note: All electric tools have two carbon brushes located on opposite sides of the tool. Turn
the tool over and replace the carbon brush on the other side following steps 2-10
again.
11. After both carbon brushes have been replaced, you can reassemble the rear handle
assembly. The switch side should be installed first. Make sure the power wires are in
the slot above the soft starter assembly and the soft starter assembly is in its holder
to prevent the pinching of the wire.
12. Hand-tighten the four self-tapping screws in the handle to prevent them from stripping
(see figure 13).
13. With the tool reassembled, perform the daily maintenance and run the tool in a no-load
condition for a couple of minutes to re-seat the carbon brushes.
Wire slot
Soft Starter
Assembly
Figure-20
Figure-21
Cleaning the Commutator
Reassembling the Handle