8
Symptom Possible Cause(s) Corrective Action
Tool will not start
Cord not connected Check that the cord is plugged in
No power at outlet
Check power at outlet. If outlet is
unpowered, turn off tool and check circuit
breaker. If breaker is tripped, make sure the
circuit is right capacity for tool and circuit has
no other loads.
Internal Damage or wear
Replace carbon brushes and/or have
technician service tool
Tool operates slowly
Excess pressure applied to workpiece.
Decrease pressure, allow tool to do the
work.
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.
Performance decreases
over time
Carbon brushes worn or damaged Replace brushes
Excessive noise or
rattling
Internal damage or wear Have technician service tool
Overheating
Forcing tool to work too fast. Allow tool to work at its own rate
Blocked motor housing vents.
Wear ANSI-approved safety goggles and
NIOSH-approved dust mask/respirator while
blowing dust out of motor using compressed
air.
Motor being strained 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.
Tool does not sand or
polish effectively
Disc or accessory may be loose on spindle
Be sure disc accessory arbor is correct and
outer flange/arbor nut is tight.
Disc accessory may be damaged, worn, or
wrong type for the material
Check condition and type of disc accessory.
Use only proper type of disc accessory in
good condition.
Wax sprays off polishing pad Reduce RPM to minimum setting
Troubleshooting Guide
feedback@natitools.com
1-800-348-5004
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