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CAUTION!
Always wear safety goggles or a face shield during operation. Never switch on the tool
when it is in contact with the workpiece, it may cause an injury to operator. Never run the
tool without properly installed accessories.
Make sure that the water valve is closed. Connect the garden hose adapter to the water
source. Make sure that water comes out when the water valve is opened. Hold the tool
fi rmly. Turn the tool on and begin your application. Apply slight pressure only. Excessive
pressure will result in poor performance and premature wear.

MAINTENANCE

CAUTION!
Always be sure that the tool is switched off and unplugged before attempting to perform
inspection or maintenance.

DAILY

Before daily start-up inspect tool, power cord, GFCI, and backer pad or other spindle
attachments.
If damage has occurred, repair affected areas before use.
Connect the tool to the correct power source and test the Ground Fault Circuit Inter-
rupter (GFCI) before using the tool. Push the RESET button and confi rm that the red
light is on, push the TEST button and confi rm that the red run light is off and push the
RESET button to use the tool.
Turn the unit on and run in a no-load condition to ensure that backer pad or other
spindle attachment is balanced.
After daily use of the tool, clean and blow off the exterior of tool and around the rear
air intake vents to remove any standing water or dust. Failure to do this will shorten
the life of your tool, and could void your warranty.

PERIODIC

WARNING!
Preventive maintenance preformed by unauthorized personnel may result in misplacing
of internal wires and/or components which voids the warranty and could cause serious
hazards. We recommend that tool service and repairs not covered in the manual be
preformed by an Alpha® Repair Center.
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