Extension Cords - Milwaukee 1670-1 Manual Del Operador

GROUNDING
WARNING
Improperly connecting the
grounding wire can result in the risk of elec-
tric shock. Check with a qualifi ed 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
fi t the outlet, have a proper outlet installed by
a qualifi ed electrician.
Grounded Tools: 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
malfunction 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 system 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 accord-
ance with all codes and ordinances.
The plug and outlet should look like
Fig. A
those in Figure A.
Double Insulated Tools:
Tools with Two Prong Plugs
Tools marked "Double Insulated" do not require
grounding. They have a special double insula-
tion system which satisfi es OSHA requirements
and complies with the applicable standards of
Underwriters Laboratories, Inc.,
the Canadian Standard Asso-
ciation and the National Elec-
trical Code. Double Insulated
tools may be used in either of
the 120 volt outlets shown in
Fig. B Fig. C
Figures B and C.

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 suffi x "W-A" ("W" in
Canada) 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
qualifi ed 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*
Extension Cord Length
Nameplate
25' 50' 75' 100'
Amperes
0 - 2.0 18 18 18 18
2.1 - 3.4 18 18 18 16
3.5 - 5.0 18 18 16 14
5.1 - 7.0 18 16 14 12
7.1 - 12.0 16 14 12 10
12.1 - 16.0 14 12 10
16.1 - 20.0 12 10
* Based on limiting the line voltage drop to fi ve volts at
150% of the rated amperes.
READ AND SAVE ALL
INSTRUCTIONS FOR FUTURE USE.
4
ASSEMBLY
WARNING
To reduce the risk of injury,
always unplug tool before attaching or remov-
ing accessories or making adjustments. Use
only specifi cally recommended accessories.
Others may be hazardous.
Installing Bits into Keyed Chucks
1. Unplug tool.
2. Open the chuck jaws
wide enough to insert
the bit. Be sure the bit
shank and chuck jaws
are clean. Dirt particles
may prevent the bit from
lining up properly.
3. Insert the bit into the
chuck. Center the bit in
the chuck jaws and lift it about 1/16" off of the
bottom. Tighten the chuck jaws by hand to align
the bit.
4. Place the chuck key in each of the three holes in
the chuck, turning it clockwise. Tighten securely.
5. To remove the bit, insert the chuck key into one
of the holes in the chuck and turn it counterclock-
wise.
Bit Selection
• Use sharp bits. Sharp bits are less likely to bind
when drilling.
• Use the proper bit for the job. There are many
types of bits designed for specifi c purposes. Check
the information on the bit's packaging for proper
usage.
• Do not use bits larger than the rated capacity of the
150'
drill. Gear damage or motor overload may result.
Pipe Handle
16
14 The pipe handle may be used on either side of the
12
tool. Thread pipe handle into one of the threaded
12
holes in the motor housing.
Spade Handle
The spade handle can be
attached to the tool in three
positions. Remove the hex
head screws which secure
the handle. Remove the han-
dle and move it to the desired
position. To mount the handle
in position C, it is necessary
to reverse the mounting holes
by turning the handle around.
OPERATION
WARNING
wear safety goggles or glasses with side
shields.
WARNING
personal injury when drilling, hold tool by in-
sulated gripping surfaces when performing an
operation where the cutting tool may contact
hidden wiring or its own cord. Contact with a
"live" wire will make exposed metal parts of
the tool "live" and shock the operator.
WARNING
speed drill or in HI with a two speed drill,
always hold the drill securely using the pipe
handle, or brace the drill against a solid fi xed
object in preparation for a sudden reaction.
When drilling in LO with a two speed drill,
always brace the drill against a solid fi xed
object in preparation for a sudden reaction.
When drilling, never use your body to brace
drill.
Never put your hands (or other body parts)
between the part of the drill being braced and
the object it is being braced against. Hands
(or other body parts) that are in the path of the
reaction can be pinched, crushed and broken.
Bit binding
Fig. 3
Fig. 2
A
B
If the bit binds, the drill will suddenly react in the
opposite direction of the rotation of the bit. Figure
C
3 shows the path of reaction (B) if the drill bit binds
while being driven in forward (A). The operator
should reduce the chances of a sudden reaction
by following the instructions listed below.
5
To reduce the risk of injury,
To reduce the risk of
When drilling with a single
B
A