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loose hardware, misalignment or binding
of moving parts, cracked or broken parts,
damaged electrical wiring, and any
other condition that may affect its safe
operation.
2.
AFtER uSE,
of the tool with clean cloth. Do not use
solvents.
3.
Inspect the Chuck and remove any dirt
or debris.
Problem
Tool will not start.
Tool operates slowly.
Performance
decreases over time.
Excessive noise or
rattling.
Overheating.
Follow all safety precautions whenever diagnosing or servicing the tool.
Disconnect power supply before service.
SKU 3670
wipe external surfaces
troubleshooting
Possible causes
1.
Cord not connected.
2.
No power at outlet.
3.
Internal damage or wear.
(Carbon brushes or switch, for
example.)
1.
Extension cord too long or wire
size too small.
2.
Applying too much pressure.
1.
Accessory dull or damaged.
2.
Carbon brushes worn or
damaged.
Internal damage or wear. (Carbon
brushes or bearings, for example.)
1.
Forcing tool to work too fast.
2.
Accessory misaligned.
3.
Accessory dull or damaged.
4.
Blocked motor housing vents.
5.
Motor being strained by long or
small diameter extension cord.
For technical questions, please call 1-800-444-3353.
4.
PERIODIcALLY
Screws (3) and tighten if necessary.
5.
If Carbon Brushes (14) are worn, contact
Harbor Freight Tools for replacements
and have a qualified service technician
replace them.
6.
WARnIng! If the supply cord of
this power tool is damaged, it must be
replaced only by a qualified service
technician.
Likely Solutions
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.
1.
Eliminate use of extension cord. If an extension
cord is needed, use shorter/heavier gauge cord.
See Extension Cords in GROUNDING section.
2.
Lessen amount of pressure on tool by turning
torque setting to it minimum.
1.
Keep cutting accessories sharp. Replace as
needed.
2.
Have qualified technician replace brushes.
Have technician service tool.
1.
Allow tool to work at its own rate.
2.
Check and correct accessory to fence and/or
table alignment.
3.
Keep cutting accessories sharp. Replace as
needed.
4.
Wear ANSI-approved safety goggles and NIOSH-
approved dust mask/respirator while blowing dust
out of motor using compressed air.
5.
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.
check the Mounting
Page 11
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