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Item 69917
SAFET
y
Op
ERA
TION
M
AINTENAN
c
E
SETU
p
Troubleshooting
problem
possible causes
Likely Solutions
Tool will not start. 1. Cord not connected.
2. No power at outlet.
3. 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. Have technician service tool.
Tool operates
slowly.
1. Excess pressure
applied to workpiece.
2. Power being reduced by
long or small diameter
extension cord.
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.
Performance
decreases
over time.
Carbon brushes worn
or damaged.
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. Blocked motor
housing vents.
3. Motor being strained by
long or small diameter
extension cord.
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.
Tool does not
sand effectively.
Sanding disc damaged, worn
or wrong type for the material.
Check condition and type of sanding disc.
Use only proper type of
sanding disc in good condition.
Follow all safety precautions whenever diagnosing or servicing
the tool. Disconnect power supply before service.
