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Item 68861
SAFET
y
Op
ERA
TION
M
AINTENANCE
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.
Attachment is
loose on the tool.
1. Holes on attachment not lined up
with pins on Spindle.
2. Cap screw not tight enough.
1. Remove the attachment and re-mount,
making sure that the holes in the attachment
are secured over the pins on the Spindle.
2. Remove the attachment and re-mount, making
sure that the holes in the attachment are
secured over the pins on the Spindle, then
tighten the Cap Screw to at least 10 ft-lb.
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. Attachment dull or damaged.
2. Carbon brushes worn
or damaged.
1. Keep cutting accessories 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. Attachment 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 cutting accessories 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.
