Page 13
For technical questions, please call 1-888-866-5797.
Item 61481
SAFET
y
O
PERA
TION
M
AINTENANCE
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. Extension cord too long or
wire size too small.
Eliminate use of extension cord. If an extension
cord is needed, use shorter/heavier gauge cord.
See
Extension Cords
in
GROUNDING
section.
Performance
decreases over time.
1. Wheel worn or dull.
2. Carbon brushes worn
or damaged.
1. Replace wheel.
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 machine to work too fast.
2. Wheel worn or dull.
3. Blocked motor housing vents.
4. Motor being strained by long or
small diameter extension cord.
1. Allow machine to work at its own rate.
2. Replace wheel.
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.
