Craftsman 137.21239 - Manual (Page 11)

11
ELECTRICAL REQUIREMENTS AND SAFETY
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
specifi ed 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 qualifi ed
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.
MINIMUM GAUGE FOR EXTENSION CORDS (AWG)
(When using 120 volts only)
Ampere Rating Total length of Cord
More Than Not More Than 25ft. 50ft. 100ft. 150ft.
0 6 18 16 16 14
6 10 18 16 14 12
10 12 16 16 14 12
12 16 14 12 Not Recommended
CAUTION: In all cases make certain
the receptacle in question is
properly grounded. If you are not
sure, have
a certifi ed electrician check the
receptacle.