Milwaukee 5211 Manuel De L'utilisateur page 3

intended for peripheral grinding, side forces applied
to these wheels may cause them to shatter.
• Always use undamaged wheel fl anges that are of
correct size and shape for your selected wheel.
Proper wheel fl anges support the wheel thus reducing
the possibility of wheel breakage. Flanges for cut-off
wheels may be different from grinding wheel fl anges.
• Do not use worn down wheels from larger power
tools. Wheel intended for larger power tool is not
suitable for the higher speed of a smaller tool and
may burst.
Additional Safety Warnings
• Maintain labels and nameplates. These carry im-
portant information. If unreadable or missing, contact
a MILWAUKEE service facility for a free replacement.
• Some dust created by power sanding,
WARNING
sawing, grinding, drilling, and other
construction activities contains chemicals known to
cause cancer, birth defects or other reproductive
harm. Some examples of these chemicals are:
• lead from lead-based paint
• crystalline silica from bricks and cement and other
masonry products, and
• arsenic and chromium from chemically-treated lumber.
Your risk from these exposures varies, depending on
how often you do this type of work. To reduce your
exposure to these chemicals: work in a well ventilated
area, and work with approved safety equipment, such
as those dust masks that are specially designed to
fi lter out microscopic particles.
SPECIFICATIONS
Cat. No. ...........................................................5211
Volts .......................................................120 AC/DC
Double Insulated
Rated RPM ....................................................16000
Arbor Size Diameter, Threads ..................... 3/8"-24
Wheel Size Thickness, Diameter ................. 1/2"x3"
Cat. No. ...........................................................5223
Volts .......................................................120 AC/DC
Double Insulated
Rated RPM ......................................................8500
Arbor Size Diameter, Threads ..................... 5/8"-11
Wheel Size Thickness, Diameter .................... 1"x5"
Cat. No. ...........................................................5243
Volts .......................................................120 AC/DC
Grounding Required
Rated RPM ......................................................7000
Arbor Size Diameter, Threads ..................... 5/8"-11
Wheel Size Thickness, Diameter .................... 1"x6"
SYMBOLOGY
Double Insulated
Volts
Alternating Current/Direct Current
Amps
Rated Revolutions per Minute (RPM)
UL Listing Mark for Canada and U.S.
C US
Approval Mark for Mexico
FUNCTIONAL DESCRIPTION
Cat. No. 5211 3"
8
1
2
3
4
5
8
Cat. No. 5223 5"
7
1
2
3
4
5
Cat. No. 5243 6"
8
7
1
2
1. Handle
2. Trigger
3
3. Motor housing
4
4. Spindle housing
(insulated handle)
5. Guard assembly clamp 5
6. Faceplate
7. Guard assembly
8. Tool rest
9. Spindle Nut
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.
4
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.
7 • 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*
6
Extension Cord Length
25' 50'
Nameplate Amps
0 - 2.0 18 18
2.1 - 3.4 18 18
3.5 - 5.0 18 18
5.1 - 7.0 18 16
7.1 - 12.0 16 14
12.1 - 16.0 14 12
16.1 - 20.0 12 10
* Based on limiting the line voltage drop to fi ve volts at 150%
of the rated amperes.
GROUNDING
Improperly connecting the ground-
WARNING
9
ing wire can result in the risk of
electric 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 pro-
vided 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 (Three-Prong Plugs)
Tools marked "Grounding Required" have a three
wire cord and three prong grounding plug. The plug
6
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
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 appro-
priate outlet, properly installed and
grounded in accordance with all codes
and ordinances. The plug and outlet
should look like those in Figure A.
Double Insulated Tools (Two-Prong Plugs)
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 Underwriters Laboratories, Inc., the
Canadian Standard Association and
the National Electrical Code. Double
Insulated tools may be used in either
of the 120 volt outlets shown in Figures
B and C.
ASSEMBLY
To reduce the risk of injury, always
WARNING
unplug tool before changing or
removing accessories. Only use accessories
specifi cally recommended for this tool. Others
may be hazardous.
To reduce the risk of injury, the wheel guard must
be fl ush with the spindle housing.
Installing Guard Assemblies
The guards for all tools in this manual are mounted
the same way:
1. Unplug tool and lay it on its tool rest.
2. Loosen guard clamping fasteners.
75' 100' 150'
3. Position guard clamp over the spindle housing and
18 18 16
against the housing shoulder.
18 16 14
16 14 12 Spindle
14 12 12
12 10 --
10 -- --
-- -- --
Spindle
housing
shoulder
4. Position guard so the operator is always behind
the guard. The open edge of the guard should face
the workpiece.
5. Tighten wheel guard clamps.
Grinding Wheel Selection
Only use wheels that:
• are high-strength
• are resinoid bond
• are the proper grit
• are the correct size
• are rated at or above the RPM listed on the tool's
nameplate
• have blotters that cover the entire fl ange contact area.
Grit Selection
The lower the grit number, the coarser the wheel.
Coarser wheels should be used for rough grinding and
fi ner wheels for fi nish grinding (see "Accessories").
Wheel Material
Grinding wheels are made from various materials and
are meant for different jobs. Be sure you choose the
proper wheel for the job you plan to do.
MILWAUKEE Straight Grinders use type 1, straight
Fig. A
wheels as defi ned by the American National Stan-
dards Institute (ANSI). Type 1 straight wheels are
made to be used for edge grinding. They are not to
be used for side grinding.
Care of Grinding Wheels
Grinding wheels should be protected from"
• wetness and extreme humidity
• any type of solvent
• extreme changes in temperature
• dropping and bumping.
Fig. B Fig. C
Grinding wheels should be stored:
• in an organized way so wheels can be removed
without disturbing or damaging other wheels
• with their safety information.
5
Guard clamp