Maintenance - DeWalt D28000 Instruction Manual

4. Depress the spindle lock button and tighten clamp nut with
a wrench.
5. To remove the wheel, grasp and turn while depressing the
spindle lock button.
USING CUTTING WHEELS
WARNING: Do not use edge grinding/
cutting wheels for surface grinding applica-
tions because these wheels are not
designed for side pressures encountered
with surface grinding. Wheel breakage and
injury may result.
1. Allow tool to reach full speed before
touching tool to work surface.
2. Apply minimum pressure to work
surface, allowing tool to operate at
high speed. Cutting rate is greatest
when the tool operates at high speed.
3. Once a cut is begun and a notch is established in the work-
piece, do not change the angle of the cut. Changing the angle
will cause the wheel to bend and may cause wheel breakage.
4. Remove the tool from work surface before turning tool off. Allow
the tool to stop rotating before setting it down.
CARBON BRUSH REPLACEMENT
CAUTION: Turn off and unplug the
tool before making any adjustments or
removing or installing attachments or
accessories. Before reconnecting the
tool, turn the switch on and off to
ensure that the tool is off.
CAUTION: Only use the D
qualified carbon brush designed
for this tool, consult your local dealer or authorized service
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center for correct carbon brush. Use of carbon brush not
designed for this tool or not qualified by D
damage the tool and may result serious injury!
Loose the screws on brush doors and take out the brush
1.
doors.
2. Disconnect the brush terminal from connector by pull the
terminal out.
3. Pull the torsion springs which to hold the brush holder back
your brush arms are free now.
4. Replace the old carbon brushes by new carbon brush.
Reverse above procedures to finish brush change.
CAUTION: Make sure all screws are correctly fitted and
tightened before re-connect the tool to power supply.

MAINTENANCE

Cleaning
WARNING: Blowing dust and grit out of motor and switch actuator
using clean, dry compressed air is a necessary regular maintenance
procedure. Dust and grit containing metal particles often accumulate
on interior surfaces and could create an electrical shock or electrocu-
tion if not frequently cleaned out. It is recommended that a ground
fault circuit interrupter (GFCI) is utilized to further protect the user
from electric shock resulting from the accumulation of conductive
particles. If the tool is deactivated by the GFCI, unplug the tool and
check and clean the tool before resetting the GFCI.
SAFETY GLASSES when cleaning or using this tool.
14
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ALWAYS WEAR