EXTENSION CORDS
Grounded tools require a three wire extension
cord. Double insulated tools can use either a two
or three wire extension cord. As the distance from
the supply outlet increases, you must use a heavier
gauge extension cord. Using extension cords with
inadequately sized wire causes a serious drop in
voltage, resulting in loss of power and possible tool
damage. Refer to the table shown to determine the
required minimum wire size.
The smaller the gauge number of the wire, the greater
the capacity of the cord. For example, a 14 gauge
cord can carry a higher current than a 16 gauge cord.
When using more than one extension cord to make
up the total length, be sure each cord contains at
least the minimum wire size required. If you are using
one extension cord for more than one tool, add the
nameplate amperes and use the sum to determine
the required minimum wire size.
Guidelines for Using Extension Cords
• If you are using an extension cord outdoors, be sure
it is marked with the suffix "W" to indicate that it is
acceptable for outdoor use.
• Be sure your extension cord is properly wired and in
good electrical 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.
Recommended Minimum Wire Gauge
For Extension Cords*
Nameplate Amps
25'
0 - 2.0
18
2.1 - 3.4
18
3.5 - 5.0
18
5.1 - 7.0
18
7.1 - 12.0
16
12.1 - 16.0
14
16.1 - 20.0
12
* Based on limiting the line voltage drop to five volts at 150%
of the rated amperes.
READ AND SAVE ALL INSTRUCTIONS
FOR FUTURE USE.
Extension Cord Length
50'
75'
100'
18
18
18
18
18
16
18
16
14
16
14
12
14
12
10
12
10
--
10
--
--
WARNING
necting the grounding wire can result in the
risk of electric shock. Check with a qualified
electrician if you are in doubt as to whether the
outlet is properly grounded. Do not modify the
plug provided with the tool. Never remove the
grounding prong from the plug. Do not use the
tool if the cord or plug is damaged. If damaged,
have it repaired by a MILWAUKEE service facility
before use. If the plug will not fit the outlet, have
a proper outlet installed by a qualified electrician.
Tools with Three Prong Plugs
Tools marked "Grounding Required" have a three
wire cord and three prong grounding plug. The plug
must be connected to a properly grounded outlet
(See Figure A). If the tool should electrically mal-
function or break down, grounding provides a low
resistance path to carry electricity away from the
user, reducing the risk of electric shock.
The grounding prong in the plug is connected through
the green wire inside the cord to the grounding sys-
tem in the tool. The green wire in the cord must be
the only wire connected to the tool's grounding
system and must never be attached
to an electrically "live" terminal.
Your tool must be plugged into an
appropriate outlet, properly installed
and grounded in accordance with
all codes and ordinances. The plug
and outlet should look like those in
150'
Figure A.
16
Double Insulated Tools:
14
Tools with Two Prong Plugs
12
12
Tools marked "Double Insulated" do not require
--
grounding. They have a special double
--
insulation system which satisfies
--
OSHA requirements and complies with
the applicable standards of Underwrit-
ers Laboratories, Inc., the Canadian
Standard Association and the Na-
tional Electrical Code. Double Insulated tools may be
used in either of the 120 volt outlets shown in
Figures B and C.
4
GROUNDING
Improperly con-
Grounded Tools:
Fig. A
Fig. B
Fig. C