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Craftsman 17539 - 6.0 Amp Plate Jointer Operator's Manual Page 7

Double insulated.
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DOUBLE
INSULATION
Double insulation is a concept in safety in electric power
tools, which eliminates the need for the usual three-wire
grounded power cord. All exposed metal parts are
isolated from the internal metal motor components
with
protecting insulation. Double insulated tools do not need
to be grounded.
_
WARNING:
The double insulated system is
intended to protect the user from shock resulting
from a break in the tool's internal insulation. Observe
all normal safety precautions to avoid electrical
shock.
NOTE: Servicing of a tool with double insulation requires
extreme care and knowledge of the system and should
be performed only by a qualified service technician. For
service, we suggest you return the tool to your nearest
authorized service center for repair. Always use original
factory replacement parts when servicing.
ELECTRICAL
CONNECTION
This tool has a precision-built
electric motor. It should be
connected to a power supply that is 120 volts, 60 Hz,
AC only (normal household
current). Do not operate
this tool on direct current (DC). A substantial voltage drop
will cause a loss of power and the motor will overheat. If
your tool does not operate when plugged into an outlet,
double-check
the power supply.
EXTENSION
CORDS
When using a power tool at a considerable distance from
a power source, be sure to use an extension cord that has
the capacity to handle the current the tool will draw. An
undersized cord will cause a drop in line voltage, resulting
in overheating and loss of power. Use the chart to deter-
mine the minimum wire size required in an extension cord.
Only round jacketed cords listed by Underwriter's
Labora-
tories (UL) should be used.
When working outdoors with a tool, use an extension
cord that is designed for outside use. This type of cord is
designated with "WA" on the cord's jacket.
Before using any extension cord, inspect it for loose or
exposed wires and cut or worn insulation.
**Ampere rating
(on tool faceplate)
0-2.0
2,1-3.4
3.5-5.0
5.1-7.0
7.1-12.0
12,1-16.0
Cord Length
Wire Size (A.W.G.)
25'
16
16
16
16
14
14
50'
16
16
16
14
14
12
100'
16
16
14
12
10
--
**Used on 12 gauge - 20 amp c_uit
NOTE: AWG = American Wire Gauge
A
WARNING:
Keep the extension cord clear of the
working area. Position the cord so that it will not get
caught on lumber, tools or other obstructions
while
you are working with a power tool. Failure to do so
can result in serious personal injury.
A
WARNING:
Check extension cords before each
use. If damaged replace immediately. Never use tool
with a damaged cord since touching the damaged
area could cause electrical shock resulting in serious
injury.

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