Double insulation, Electrical connection, Extension cords – Craftsman 315.279840 User Manual

Page 7: Electrical

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ELECTRICAL

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. Ail exposed metal parts are
isolated from the internal metal motor components with

protecting insulation. Double insulated tods do not need

to be grounded.

A

WARNING:

The doubie insulated system is

intended to protect the user from shock resulting
from a break in the tool's internal insulation. Observe
ail 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 tod has a precision-built electric motor. It should be

connected to a power supply that le 120 volte, 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.

"Amp«r» rating (on tool laceplate)

0-2.0

2.1-3.4

3.S-S.0

5.1-7.0

7.1-12.0 12.1-10.0

Cord Length

Wire Size (AW.Q.)

25-

16

16

16

16

14

14

SO'

16

16

16

14

14

12

100'

16

16

14

12

10

-

"Used on ‘>2 gauge

-

20 amp ara^

NOTE: AWG American Wire Gauge

WARNING:

Keep the extension cord dear of the

worldng area. Position the cord so that it will not get

caught on lumber, tools or other obstmctfons while

you are working with a power tool. Failure to do so

can result in serious personal injury.

WARNING:

Check extension cords before each

1

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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