Milwaukee Tool 6020-21 - Manual (Page 3)

4 5
SPECIFIC SAFETY RULES
• Hold power tool by insulated gripping surfaces,
because the belt may contact its own cord.
Cutting a “live” wire may make exposed metal
parts of the tool “live” and could give the operator
an electric shock.
• Maintain labels and nameplates. These carry
important information. If unreadable or missing,
contact a MILWAUKEE service facility for a free
replacement.
• WARNING Some dust created by power sanding,
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 spe-
cially designed to fi lter out microscopic particles.
Double Insulated
Volts
Alternating Current Only
Amps
OPM
Orbits Per Minute (OPM)
Underwriters Laboratories, Inc.
United States and Canada
SYMBOLOGY
SPECIFICATIONS
Cat. No.
Volts
AC
Amps
Orbits
Per Min.
Paper
Size
6020-21 120 3 14,000 1/4 sheet
FUNCTIONAL DESCRIPTION
1. Dust bag
2. On/Off Switch
3. Paper clamp
4. Sanding pad
5. Clamp lever
6. Paper Punch (not shown)
2
4
3
1
5
3 Fig. B Fig. C
Fig. A
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
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
Figures B and C.
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.
READ AND SAVE ALL
INSTRUCTIONS FOR FUTURE USE.
* Based on limiting the line voltage drop to fi ve volts at
150% of the rated amperes.
EXTENSION CORDS
Recommended Minimum Wire Gauge
For Extension Cords*
Extension Cord Length
Nameplate
Amperes
25' 50' 75' 100' 150'
0 - 2.0
2.1 - 3.4
3.5 - 5.0
5.1 - 7.0
7.1 - 12.0
12.1 - 16.0
16.1 - 20.0
18
18
18
18
16
14
12 18
18
18
16
14
12
10 18
18
16
14
12
10 18
16
14
12
10 16
14
12
12
ASSEMBLY
Selecting Sandpaper and Grits
Sandpaper can be made from various grit materi-
als and these should be selected according the
material to be sanded. The guidelines below list
materials and grit materials that should be used
with them.
• Fine woodwork – garnet or aluminum oxide
• Rough woodwork – aluminum zirconia or ce-
ramic aluminum oxide
• Manufactured wood products (particleboard,
medium density fi ber board etc.) – silicon carbide
or aluminum oxide
• Solid surfacing materials (Corian, etc.) – silicon
carbide or aluminum oxide
• Metals – emery or aluminum oxide
Grit Type Typical Application
60
80
Course
Ideal for initial sanding on rougher
surfaces. For fast stock removal.
Rough sanding and stripping of
painted and rusted surfaces.
100
120
Medium
For intermediate sanding
and removal of minor surface
imperfections.
150
180
220
Fine
Ideal for fi ne sanding prior to
straining, priming, or sealing.
Installing Sandpaper
Inspect sandpaper before installing. DO NOT use
if broken or defective.
1. Unplug the sander.
2. Push the clamp lever in and up toward the tool,
then slowly release it.
3. Insert end of new 1/4 sheet sandpaper approxi-
mately 1/4" under the paper clamp.
Sandpaper is also graded by coarseness. Start
your work with an abrasive grit just coarse enough
to remove high spots and excessive roughness.
Follow with a second sanding using a grit one or
two grades fi ner. Continue with successively fi ner
grits until you obtain the desired fi nish.
Do not switch from a coarse grit to a very fi ne grit
in one step because it may be diffi cult to remove
the marks made by the coarse grit abrasive. Use
the fi nest grits practical for the roughing operation,
and fi nish by using successively fi ner grits.
Fig. 1
WARNING To reduce the risk of injury,
always unplug tool before changing or re-
moving accessories. Only use accessories
specifi cally recommended for this tool. Others
may be hazardous.