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21. NEVER LEAVE TOOL RUNNING UNATTENDED.
TURN POWER OFF. Don’t leave tool until it
comes to a complete stop.
22. REPLACEMENT PARTS. When servicing use
only identical replacement parts.
23. POLARIZED PLUGS. To reduce the risk of elec-
tric shock, this equipment has a polarized plug
(one blade is wider than the other). This plug will
fit in a polarized outlet only one way. If the plug
does not fit fully in the outlet, reverse the plug. If
it still does not fit, contact a qualified electrician
to install the proper outlet. Do not change the
plug in any way.
VOLTAGE WARNING: Before connecting the tool to a
power source (receptacle, outlet, etc.) be sure the volt-
age supplied is the same as that specified on the name-
plate of the tool. A power source with voltage greater
than that specified for the tool can result in SERIOUS
INJURY to the user – as well as damage to the tool. If in
doubt, DO NOT PLUG IN THE TOOL. Using a power
source with voltage less than the nameplate rating is
harmful to the motor.
USE PROPER EXTENSION CORD: Make sure your
extension cord is in good condition. When using an
extension cord, be sure to use one heavy enough to
carry the current your product will draw. An undersized
cord will cause a drop in line voltage resulting in loss of
power and overheating. Table 1 shows the correct size to
use depending on cord length and nameplate ampere
rating. If in doubt, use the next heavier gage. The smaller
the gage number, the heavier the cord.
SPECIFIC SAFETY RULES
USB078-1
DO NOT let comfort or familiarity with
product (gained from repeated use)
replace strict adherence to portable cut-
off safety rules. If you use this tool
unsafely or incorrectly, you can suffer
serious personal injury.
1. Wear hearing protection during extended peri-
ods of operation.
2. Use only wheels having a maximum operating
speed at least as high as “No Load RPM”
marked on the tool’s nameplate. Use only fiber-
glass-reinforced cut-off wheels.
3. Check the wheel carefully for cracks or damage
before operation. Replace cracked or damaged
wheel immediately. Run the tool (with guard) at
no load for about a minute, keeping tool away
from others. If wheel is flawed, it will likely sepa-
rate during this test.
4. Secure the wheel carefully.
5. Use only flanges specified for this tool.
6. Be careful not to damage the spindle, the flange
(especially the installing surface) or the bolt.
Damage to these parts could result in wheel
breakage.
7. Do not operate the tool without guards in place.
Check wheel guard for proper closing before
each use. Do not operate the tool if wheel guard
does not move freely and close instantly. Never
clamp or tie the wheel guard into the open posi-
tion.
8. Hold the handle firmly.
9. Keep hands away from rotating parts.
10. Make sure the wheel is not contacting the work-
piece before the switch is turned on.
11. Before using the tool on an actual workpiece, let
it run for a while. Watch for vibration or wobbling
that could indicate poor installation or a poorly
balanced wheel.
12. Watch out for flying sparks when operating.
They can cause injury or ignite combustible
materials.
13. Remove material debris from the area that might
be ignited by sparks. Be sure that others are not
in the path of the sparks. Keep a proper ,
charged extinguisher closely available.
14. Use the cutting edge of the wheel only. Never
use side surface.
15. Do not attempt to keep the trigger in the ON
position.
16. If the wheel stops during operation, makes an
odd noise or begins to vibrate, switch off the tool
immediately.
Table 1. Minimum gage for cord
Ampere Rating
Volts Total length of cord in feet
120 V 25 ft. 50 ft. 100 ft. 150 ft.
More Than Not More Than AWG
0 6 18 16 16 14
6 10 18161412
10 12 16 16 14 12
12 16 14 12 Not Recommended