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Problem
Tool will not start.
1. Cord not connected.
2. No power at outlet.
3. Tool's thermal reset
4. Internal damage or wear. (Carbon
Tool operates slowly.
1. Excess pressure applied to workpiece.
2. Power being reduced by long or
Performance
Carbon brushes worn or damaged.
decreases over time.
Excessive noise
Internal damage or wear. (Carbon brushes or
or rattling.
bearings, for example.)
Overheating.
1. Forcing tool to work too fast.
2. Blocked motor housing vents.
3. Motor being strained by long or
Tool does not
1. Disc accessory may be loose on Spindle.
grind, sand or
brush effectively.
2. Disc accessory may be damaged,
Follow all safety precautions whenever diagnosing or servicing
the tool. Disconnect power supply before service.
Page 10
Troubleshooting
Possible Causes
breaker tripped (if equipped).
brushes or switch, for example.)
small diameter extension cord.
small diameter extension cord.
worn or wrong type for the material.
For technical questions, please call 1-888-866-5797.
Likely Solutions
1. Check that cord is plugged in.
2. Check power at outlet. If outlet is unpowered,
turn off tool and check circuit breaker. If breaker
is tripped, make sure circuit is right capacity
for tool and circuit has no other loads.
3. Turn off tool and allow to cool.
Press reset button on tool.
4. Have technician service tool.
1. Decrease pressure, allow tool to do the work.
2. Eliminate use of extension cord. If an extension
cord is needed, use one with the proper
diameter for its length and load. See Extension
Cords in GROUNDING section.
Have qualified technician replace brushes.
Have technician service tool.
1. Allow tool to work at its own rate.
2. Wear ANSI-approved safety goggles and NIOSH-
approved dust mask/respirator while blowing
dust out of motor using compressed air.
3. Eliminate use of extension cord. If an extension
cord is needed, use one with the proper
diameter for its length and load. See Extension
Cords in GROUNDING section.
1. Be sure disc accessory is of correct
dimension and Flange Arbor Nut is tight.
2. Check condition and type of disc accessory. Use
only proper type of disc accessory in good condition.
Item 56932
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