User`s manual

27
Part 2
Maintenance
Cleaning the Main Unit
When the main unit becomes dirty, use a dry cloth to wipe it.
Cleaning After Operation
When cleaning the PNC-2300, make sure that the main unit's power OFF.
Turn the power OFF.
1
Loosen the screws on the left and right, and remove
the spindle cover.
2
Use a commercially available flathead screwdriver to
remove the front and rear brush covers.
3
Remove the old motor brush and replace with a new
one.
4
Head
Replacing the Motor Brushes
The brushes for the spindle motor should be replaced periodically. As a general guide, replacement after every 1,000 hours of spindle rotation
is suggested. For an explanation of how to check the spindle rotation time, see “Display of Spindle Rotation Time” on page 29.
Loosen the
screw by hand
Spindle cover
Remove the brush
cover on the
opposite side as well
Motor brush
Please use a vacuum cleaner to remove cutting dust. Do
not use any blower like airbrush. Otherwise, dust spread
in the air may harm your health or damage this machine.
After cutting work is completed, use a vacuum cleaner to clean the PNC-2300
main unit and the surrounding area of cutting dust.