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Page 15For technical questions, please call 1-800-444-3353.Item 68987
SAFETYOPERATIONMAINTENANCE SETUP
Troubleshooting
Problem Possible Causes Likely Solutions
Tool will not start. 1. Cord not connected.
2. No power at outlet.
3. Tool’s thermal reset breaker
tripped (if equipped).
4. Internal damage or
wear. (Carbon brushes or
switch, for example.)
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.
Tool operates slowly. Power being reduced by long or
small diameter extension cord.
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.
Performance
decreases over time.
1. Blade dull or damaged.
2. Carbon brushes worn
or damaged.
1. Keep blade sharp. Replace as needed.
2. Have qualified technician replace brushes.
Excessive noise
or rattling.
Internal damage or wear. (Carbon
brushes or bearings, for example.)
Have technician service tool.
Overheating. 1. Forcing tool to work too fast.
2. Blade dull or damaged.
3. Blocked motor housing vents.
4. Motor being strained by long or
small diameter extension cord.
1. Allow tool to work at its own rate.
2. Keep blade sharp. Replace as needed.
3. Wear ANSI-approved safety goggles and NIOSH-
approved dust mask/respirator while blowing
dust out of motor using compressed air.
4. 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.
Follow all safety precautions whenever diagnosing or servicing
the tool. Disconnect power supply before service.