Craftsman 21239 - 12 in. Sliding Compound Miter Saw Operator's Manual page 7

ELECTRICAL REQUIREMENTS - cont'd
DOUBLE iNSULATED []
The power tool is double insulated to provide a
double thickness of insulation between you and
tool's electrical system. All exposed metal parts are
isolated from the internal metal motor components
with protecting insulation.
Replacement parts - When servicing, use only
identical replacement parts.
Polarized plugs - This saw has a plug that looks
like the one shown below:
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To reduce the risk of electrical shock, this saw 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.
i,_ WARNING]
Double insulation does not take the place of normal
safety precautions when operating this tool.
To avoid electrocution:
1. Use only identical replacement parts when
servicing a tool with double insulation. Servicing
should be performed by a qualified technician.
2. Do not use power tools in wet or damp locations
or expose them to rain or snow.
MOTOR SAFETY PROTECTION
iMPORTANT
To avoid motor damage, the motor should be blown
out or vacuumed frequently to keep sawdust from
interfering with the motor ventilation.
1. Connect this saw to a 120 V circuit. This circuit
must not be less than a #12 wire with a 20 A
time lag fuse ora #14 wire with a 15 A time lag
fuse. NOTE: When using an extension cord on a
circuit with a #14 wire, the extension cord must
not exceed 25 feet in length.
2. If the motor will not start, release the trigger
switch immediately. UNPLUG THE SAW.
Check the saw blade to make sure it turns
freely. If the blade is free, try to start the saw
again. If the motor still does not start, refer to the
TROUBLESHOOTING GUIDE.
3. If the tool suddenly stalls while cutting wood,
release the trigger switch, unplug the tool and
free the blade from the wood. The saw may now
be started and the cut finished.
4. FUSES may "blow" or circuit breakers may trip
frequently if:
a. MOTOR is overloaded - overloading can
occur if you feed too rapidly or make too
many start/stops in a short time.
b. LiNE VOLTAGE is more than 10% above
or below the nameplate voltage rating. For
heavy loads, the voltage at motor terminals
must equal the voltage specified on the
nameplate.
c. iMPROPER or dull saw blades are used.
5. Most motor troubles may be traced to loose or
incorrect connections, overload, low voltage or
inadequate power supply wiring. Always check
the connections, the load and supply circuit if the
motor doesn't run well. Check minimum gauge
for the length of cord you are using on the chart
below.
GUiDELiNES FOR EXTENSION CORDS
Use a 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. The table
below shows the correct size to use depending
on cord length and nameplate ampere rating. If in
doubt, use the next heavier gauge. The smaller the
gauge number, the heavier the cord.
Be sure your extension cord is properly wired
and in good condition. Always replace a damaged
extension cord or have it repaired by a qualified
person before using it. Protect your extension cords
from sharp objects, excessive heat and damp or wet
areas.
Use a separate electrical circuit for your tools.
This circuit must not be less than a #12 wire with a
20 A time lag fuse or a #14 wire with a 15 A time lag
fuse. NOTE: When using an extension cord on a
circuit with a #14 wire, the extension cord must not
exceed 25 feet in length. Before connecting the tool
to the power line, make sure the switch is in the OFF
position and the electric current is rated the same
as the current stamped on the motor nameplate,
running at a lower voltage will damage the motor.
(When using 120 volts only)
Ampere Rating Total length of Cord
I MoreThan Not MoreThan 25ft. 50ft. 100ft. 150ft.
16 181616 14
18 16 14 12
[10 12 [16 !6 14 12
CAUTION: in all cases make certain the
receptacle in question is properly grounded.
If you are not sure, have a certified electrician
check the receptacle.
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