Milwaukee 6078, 6065, 6065-6, 6072, 6066 User Manual
...
OPERATOR'S MANUAL
MANUEL de L'UTILISATEUR
MANUAL del OPERADOR
Catalog No.
No de Cat.
Catálogo No.
6065
6065-6
6066
HEAVY-DUTY SANDERS AND GRINDERS
PONCEUSES-RECTIFIEUSES EXTRA ROBUSTES
6066-6
6072
6078
LIJADORAS Y ESMERILADORAS HEAVY-DUTY
TO REDUCE THE RISK OF INJURY, USER MUST READ AND UNDERSTAND OPERATOR'S MANUAL.
AFIN DE RÉDUIRE LE RISQUE DE BLESSURES, L'UTILISATEUR DOIT LIRE ET BIEN COMPRENDRE LE
MANUEL DE L'UTILISATEUR.
PARA REDUCIR EL RIESGO DE LESIONES, EL USUARIO DEBE LEER Y ENTENDER EL MANUAL DEL
OPERADOR.
GENERAL SAFETY RULES — FOR ALL POWER TOOLS
WARNING!
Failure to follow all instructions listed below may result in electric shock, fire and/or serious injury. The term "power tool" in
all of the warnings listed below refers to your mains-operated (corded) power tool or battery-opearted (cordless) power tool.
SAVE THESE INSTRUCTIONS
READ ALL INSTRUCTIONS
WORK AREA SAFETY
1. Keep work area clean and well lit. Cluttered or dark areas invite
accidents.
2. Do not operate power tools in explosive atmospheres, such
as in the presence of flammable liquids, gases, or dust.
Power tools create sparks which may ignite the dust or fumes.
3. Keep children and bystanders away while operating a power
tool. Distractions can cause you to lose control.
ELECTRICAL SAFETY
4. Power tool plugs must match the outlet. Never modify the
plug in any way. Do not use any adapter plugs with earthed
(grounded) power tools. Unmodified plugs and matching outlets
will reduce risk of electric shock.
5. Avoid body contact with earthed or grounded surfaces such
as pipes, radiators, ranges and refrigerators. There is an
increased risk of electric shock if your body is earthed or grounded.
6. Do not expose power tools to rain or wet conditions. Water
entering a power tool will increase the risk of electric shock.
7. Do not abuse the cord. Never use the cord for carrying,
pulling, or unplugging the power tool. Keep cord away from
heat, oil, sharp edges, or moving parts. Damaged or entangled
cords increase the risk of electric shock.
8. When operating a power tool outdoors, use an extension
cord suitable for outdoor use. Use of a cord suitable for outdoor
use reduces the risk of electric shock.
PERSONAL SAFETY
16. Do not force the power tool. Use the correct power tool for
your application. The correct power tool will do the job better and
safer at the rate for which it was designed.
17. Do not use the power tool if the switch does not turn it on
and off. Any power tool that cannot be controlled with the switch is
dangerous and must be repaired.
18. Disconnect the plug from the power source and/or the bat-
tery pack from the power tool before making any adjustments, changing accessories, or storing power tools. Such
preventive safety measures reduce the risk of starting the tool accidentally.
19. Store idle power tools out of the reach of children and do
not allow persons unfamiliar with the power tools or these
instructions to operate power tools. Power tools are danger-
ous in the hands of untrained users.
20. Maintain power tools. Check for misalignment or binding of
moving parts, breakage of parts and any other condition
that may affect the power tool's operation. If damaged, have
the power tool repaired before use. Many accidents are caused
by poorly maintained power tools.
21. Keep cutting tools sharp and clean. Properly maintained cutting
tools with sharp cutting edges are less likely to bind and are easier
to control.
22. Use the power tool, accessories and tool bits etc., in accor-
dance with these instructions and in the manner intended
for the particular type of power tool, taking into account the
working conditions and the work to be performed. Use of
the power tool for operations different from those intended could
result in a hazardous situation.
POWER TOOL USE AND CARE
SERVICE
9. Stay alert, watch what you are doing and use common sense
when operating a power tool. Do not use a power tool while
you are tired or under the influence of drugs, alcohol or
medication. A moment of inattention while operating power tools
may result in serious personal injury.
10. Use safety equipment. Always wear eye protection. Safety
equipment such as dust mask, non-skid safety shoes, hard hat, or
hearing protection used for appropriate conditions will reduce personal injuries.
11. Avoid accidental starting. Ensure the switch is in the off-
position before plugging in. Carrying tools with your finger on
the switch or plugging in power tools that have the switch on invites
accidents.
12. Remove any adjusting key or wrench before turning the
power tool on. A wrench or a key left attached to a rotating part of
the power tool may result in personal injury.
13. Do not overreach. Keep proper footing and balance at all
times. This enables better control of the power tool in unexpected
situations.
14. Dress properly. Do not wear loose clothing or jewellery.
Keep your hair, clothing and gloves away from moving parts.
Loose clothes, jewellery, or long hair can be caught in moving parts.
15. If devices are provided for the connection of dust extrac-
tion and collection facilities, ensure these are connected
and properly used. Use of these devices can reduce dust-re-
lated hazards.
page 2
23. Have your power tool serviced by a qualified repair person
using only identical replacement parts. This will ensure that
the safety of the power tool is maintained.
SPECIFIC SAFETY RULES
1. Always use proper guard with grinding wheel. A guard protects operator from broken wheel fragments.
2. Accessories must be rated for at least the speed recommended on the tool warning label. Wheels and other accessories running
over rated speed can fly apart and cause injury.
3. Make sure all wheel flanges and other mounting hardware are in good condition and are always used properly. Defective or
missing parts may damage the wheels and other accessories. Always use mounting hardware supplied with the tool.
4. Hold power tools by insulated 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.
5. Keep hands away from all cutting edges and moving parts.
6. Maintain labels and nameplates. These carry important information. If unreadable or missing, contact a MILWAUKEE service facility for a free replacement.
7. 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 specially designed to filter out microscopic
particles.
page 3
Symbology
Specifications
Double Insulated
Canadian Standards
Association
Underwriters
Laboratories, Inc.
Volts Alternating Current/
Direct Current
Volts Alternating Current
No Load Revolutions
per Minute (RPM)
Amperes
Mexican Safety Standards
Cat.
No.
6065
6065-6
6066
6066-6
6072
6078
Volts
120 AC/DC
120 AC/DC
120 AC/DC
120 AC/DC
120 AC/DC
120 AC
Amps
15
15
15
15
13
13
No Load
RPM
5000
5000
6000
6000
5000
0 - 6000
Spindle
Size
5/8"-11
5/8"-11
5/8"-11
5/8"-11
5/8"-11
5/8"-11
Wheel
Size
7"/9"
7"/9"
7"/9"
7"/9"
9"
7"
Min. Wheel
RPM Rating
5500
5500
6500
6500
5500
6500
FUNCTIONAL DESCRIPTION
2
4
1
1
2
3
9
4
7
9
5
1. Cord
2. Back handle
7
6
3. Dial speed control (6078 only)
4. Tool rest
5. Side handle
6. Spindle
7. Spindle lock button
8. Guard
9. Trigger
8
5
6
page 4
GROUNDING EXTENSION CORDS
WARNING!
Improperly connecting 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.
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 accordance 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 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.
Fig. A
Fig. B
Fig. 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 suffix “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 qualified person before using it.
• Protect your extension cords from sharp objects, excessive heat
and damp or wet areas.
Recommended Minimum Wire Gauge
Nameplate
Amperes
8.1 - 12
12.1 - 15
15.1 - 20
* Based on limiting the line voltage drop to five
volts at 150% of the rated amperes.
for Extension Cords*
25'
0 - 5
5.1 - 8
16
16
14
12
10
Extension Cord Length
100'
14
12
10
10
--
150'
12
10
--
--
--
50'
16
16
14
12
10
75'
16
14
12
10
10
200'
12
--
--
--
--
READ AND SAVE ALL INSTRUCTIONS
FOR FUTURE USE.
page 5
TOOL ASSEMBLY
WARNING!
To reduce the risk of injury, always unplug tool before
attaching or removing accessories or making adjustments.
Use only specifically recommended accessories. Others
may be hazardous.
Removing and Replacing Quik-Lok® Cords (Select Models) (Fig. 1)
MILWAUKEE's exclusive Quik-Lok® Cords provide instant field replace-
ment or substitution.
Fig. 1
®
1. To remove the Quik-Lok
and pull it out.
2. To replace the Quik-Lok
push the connector in as far as it will go. Turn the cord nut 1/4 turn
to the right to lock.
Cord, turn the cord nut 1/4 turn to the left
®
Cord, align the connector keyways and
OPERATION
Installing the Side Handle
The side handle may be installed on either side of gear case for right or
left handed use. Position side handle in the location which offers best
control and guard protection. For operating zones that provide maximum
protection for the operator, see "Grinding". To install, thread side handle
into side handle socket on desired side of gear case and tighten securely.
Installing, Adjusting, and Removing the Guard (Select Models)
WARNING!
To reduce the risk of injury when grinding, ALWAYS use the
proper guard. ALWAYS properly install the guard.
The guard must be used when using the tool as a grinder. The guard
should be removed when using tool as a sander.
1. Unplug the tool and place it upside down on a level surface. Remove
any accessories from the spindle.
2. Place the grinding wheel guard over the spindle. Position the guard
in the location which offers best control and guard protection. For
operating zones that provide maximum protection for the operator,
see "Grinding".
3. Fasten the guard to the lower half of the gear case with screws and
lock washers provided.
WARNING!
To reduce the risk of injury, wear safety goggles or glasses
with side shields. Unplug the tool before changing
accessories or making adjustments.
Starting and Stopping the Motor
1. To start the tool, pull the trigger.
2. To stop the tool, release the trigger.
WARNING!
To reduce the risk of injury or damage to the tool, do not use
the spindle lock button to stop the spindle while the tool is
in use or is coasting after shut-off.
Locking the Trigger (Select Models)
The lock button holds the trigger in the ON position for continuous use.
1. To lock the trigger on, hold in the lock-on button while pulling the
trigger. Release the trigger.
2. To unlock the trigger, pull the trigger and release. The lock-on button will pop out.
Using the Dial Speed Control (Cat. No. 6078 only)
Cat. No. 6078 has a dial speed control and variable speed trigger switch.
The maximum speed may be preset using the speed control dial and the
speed may be varied by the trigger switch. Speed control dial settings
range from 1 to 5. Lower numbers correspond to lower speeds and
higher numbers correspond to higher speeds. Use the setting that best
suits the work.
To control the speed, set the dial to the desired number. Then, pull the
trigger. Increase or decrease pressure on the trigger to vary the speed.
To stop the tool, release the trigger.
Sanding Disc and Grinding Wheel Selection
WARNING!
To reduce the risk of personal injury and damage to the tool,
use ONLY accessories rated at or above the RPM listed on
the “WARNING” section of the tool's nameplate.
Use sanding discs and grinding wheels that are:
• correct size as written on tool's nameplate
• correct wheel type and grit for the job
• rated at or above the RPM listed in the “WARNING” section on
the tool's nameplate
Use backing pads, adapters, and other accessories that are:
• correct size for tool and for sanding disc or grinding wheel
• rated at or above the RPM listed in the “WARNING” section on
the tool's nameplate
• the proper accessory for the job
Sanding Disc and Grinding Wheel Material
Sanding discs and grinding wheels are made of various materials and
are designed for different jobs. Be sure that you choose the proper
sanding disc or grinding wheel for the job you plan to do.
page 6
USING SANDING DISCS
Installing Sanding Discs (Fig. 2)
1. Unplug tool and place it upside down on a level surface as shown. Remove any accessories from spindle.
2. Thread flange and nylon washer onto spindle. Attach backing pad and sanding disc using Fig. 2 to determine type and order of assembly.
NOTE: When installing flap disc without hub, position flap disc nut as shown.
3. To tighten, press in the spindle lock button while turning disc nut clockwise.
4. To remove sanding disc and backing pad, unplug tool and reverse procedure.
Fig. 2
Disc nut
Sanding
disc
Backing
pads
A. Polypropylene
B. Spiral
C. Rubber
D. Phenolic
BCDA
Rubber
pad
Nylon washer
Flange
Spindle
Flap disc
nut position
Flap disk
without hub
Type 27
flange
Flap disk
with hub
Spindle lock button
Sanding (Fig. 3)
1. Use a clamp, vise or other practical means to hold your work, freeing both hands to control your tool. Firmly grasp rear handle and side
handle before starting and while tool is in operation. Allow sanding
disc to come to full speed before beginning to sand.
2. Hold tool at 5° to 15° angle as shown to ensure proper sanding
pressure and control (Fig. 3). Too great an angle will result in too
much pressure and could cause excessive wear to the disc and
workpiece. Too small an angle will reduce control.
Fig. 3
Hold at a 5° to 15° angle
For best results, use only
this portion of the disc.
3. Use long, sweeping, side to side strokes, advancing forward to
produce the desired finish.
Removing Welds or Hammer Marks
When removing welds or hammer marks, limit coarse sanding to the
immediate area. Use successively finer grits to smooth surface.
Cross Sanding
When finishing a surface that has been prepared by a coarse disc or
wheel, sand at right angles to the strokes made by the coarser disc.
Finishing marks left from previous sanding are easily seen and removed
for a uniform finish. Failure to cross sand when changing from a coarse
disc to a finishing disc may result in deep scratches and circular marks.
Finishing Metal
Constantly move across the surface. Work faster on curved surfaces
where contact areas are smaller and pressure is greater. Flat areas may
appear at the end of the stroke when pressure is too heavy. Ease up on
pressure at end of each stroke and when reversing strokes.
Troubleshooting
Deep scratches and circular marks can result from:
• Using too coarse a grit
• Using a partially glazed disc
• Dirt or loose metal on the workpiece
• Failure to sand across the grain when changing from coarse to
finishing discs
Bluish discoloration of metal surface indicates:
• Excessive heat caused by circular motion in a small area
• Excessive pressure
• Use of worn out or glazed discs
Selecting Sanding Discs & Grit
Refer to the table below to select the correct type of sanding disc for your
job. Generally , use 16, 24 or 36 grit for heavy stock removal; 50, 60 or 80
grit for medium stock removal and 120 grit for finishing. Always begin
with a coarse grit, using successively finer grits to obtain the desired
finish. See Catalog for a complete list of MILWAUKEE sanding discs.
Aluminum
Oxide
For fast cutting,
general purpose discs
for most metal jobs.
Best for cold-rolled
steel, stainless steel or
metals requiring tough,
fast cutting, long lasting abrasives.
Aluminum
Zirconia Bi-Cut
Unique grit pattern is
arranged in clusters
for faster stock
removal and cleaning.
Ideal for removing paint
from cars, boats, etc.
without clogging.
Ceramic
Lasts up to 3 times
longer than aluminum
oxide discs. For
general metal working.
Ideal for tough jobs.
page 7
USING GRINDING AND CUT-OFF WHEELS
Installing Grinding Wheels (Fig. 4)
1. Unplug tool and place it upside down on a level surface as shown. Remove any accessories from spindle.
2. Thread flange and nylon washer onto spindle. Attach guard and grinding wheel using Fig. 4 to determine type and order of assembly (See
"Installing, Adjusting, and Removing the Guard" for attaching guard). NOTE: When installing Type 27 or Type 29 grinding wheels, position wheel
nut according to wheel thickness.
Position the guard in the location which offers best control and guard protection. For operating zones that provide maximum protection for the
operator, see "Grinding". NOTE: When selecting Type 11 grinding cup wheels, the guard’s skirt should be adjusted so that no more than 1/8" of
the wheel extends beyond the guard.
3. To tighten, press in the spindle lock button while turning wheel or disc nut clockwise using the spanner wrench provided.
4. To remove grinding wheel and guard, unplug tool and reverse procedure.
Fig. 4
Grinding wheels
A. Type 28 with hub
B. Type 27 with hub
Type 29 with hub
C. Type 27 with flange
Type 29 with flange
D. Type 11
Guard
E. Type 28
F. Type 27
G. Type 27
H. Type 11
Wheel nut
A
B
FG HE
Spindle
Spindle lock button
C
D
Wheel
Nylon washer
Hub adaptor
Flange
Screws
Lock washers
Guard
Care of Grinding & Cut-Off Wheels
WARNING!
To reduce the risk of injury, the operator should be instructed in the use, care and protection of grinding wheels.
Grinding and cut-off wheels should be protected from:
• wetness and extreme humidity
• any type of solvent
• extreme changes in temperature
• dropping and bumping
Grinding and cut-off wheels should be stored:
• in an organized way so wheels can be removed without disturbing
or damaging other wheels
• with their safety information
Grinding and cut-off wheels should NOT be:
• dropped
• rolled
• bumped
If any wheel is dropped, rolled, bumped, subjected to extreme changes
in temperature, or has come into contact with solvents or wetness,
discard wheel immediately.
page 8
Troubleshooting
Deep scratches and circular marks can result from:
• Uneven pressure
• Using a partially glazed wheel - especially on aluminum applications
• Dirt or loose metal on the workpiece
• Failure to constantly move across surface
Bluish discoloration of metal surface indicates:
• Excessive heat caused by circular motion in a small area
• Excessive pressure
• Use of worn out or glazed wheels
Inspecting Wheels
Always handle wheels carefully to avoid damage. Before installing any
wheel, always inspect it for cracks. If wheel is cracked, discard it to
prevent others from using it.
Selecting Wheels
WARNING!
Only use wheels with Maximum Safe Operating Speed rated
at or above the RPM listed on the “WARNING” section of the
tool's nameplate. This speed is based on the strength of the
wheel, allowing for a reasonable measure of safety. It is not
meant to imply a best or most efficient operating speed. Do
not exceed the Maximum Safe Operating Speed.
Grinding is the cutting action of thousands of abrasive grains on the face of
a grinding wheel. When grinding metals such as steel and iron, choose an
aluminum oxide grinding wheel. Select a silicon carbide grinding wheel for
stone and concrete. Use cotton reinforced wheels for non-ferrous metals.
Type 27 reinforced 1/8" cut-off wheels are suited for small cut-off and
shallow notching operations only.
Grinding (Fig. 5 & 6)
WARNING!
2. If you have just installed a grinding wheel or are just beginning a
period of work, test the wheel by letting it spin for one minute before
applying it to the workpiece.
NOTE: Out-of-balance wheels can mar workpiece, damage the tool,
and cause stress to wheel that may cause wheel failure.
3. Firmly grasp rear handle and side handle before starting and while
using tool. Allow wheel to come to full speed before starting to grind.
4. When grinding, hold tool at a 5o to 15o angle as shown, using constant pressure for a uniform finish (Fig. 6). Too great an angle causes
too much pressure on small areas which may gouge or burn work
surface.
Fig. 6
Hold at a 5° to 15° angle
To reduce the risk of injury when grinding:
• ALWAYS hold the tool firmly with both hands using
the handles provided; before and during grinding
• NEVER allow the wheel to bind
• NEVER use a wheel that has been dropped
• NEVER bang grinding wheel onto work
• NEVER grind without proper safety equipment
WARNING!
To reduce the risk of injury when grinding, ALWAYS use the
proper guard. ALWAYS properly install the guard.
1. Depending on your job, position the guard to provide maximum protection for the operator (Fig. 5).
Fig. 5
5. Control pressure and surface contact between wheel and workpiece. Too much pressure slows cutting speed.
Using Type 27 Cut-Off Wheels (Fig. 7)
WARNING!
A Type 27 guard must be installed when using a Type 27 cutoff wheel to provide maximum protection for the operator if
the wheel should break.
Type 27 cut-off wheels are only suited for small cut-off and shallow
notching operations.
1. Firmly grasp rear handle and side handle before starting and while
using tool. Allow wheel to come to full speed before starting.
2. When using a cut-off wheel, hold tool as shown, using only the
edge of the wheel (Fig. 7).
Fig. 7
Operator's Zones
3. Control pressure and surface contact between wheel and workpiece. Too much pressure slows cutting speed.
page 9
USING WIRE BRUSHES
Selecting Wire Brushes
Wire brushes are useful for removing rust, scale, burrs, weld slag, etc.
A wide variety of wire brushes are available for many applications.
WARNING!
Everyone in the area must wear protective clothing and
safety goggles or face shields. Fatigued wires and residue
will fly off the brush with considerable force, causing the
potential for serious injuries.
Installing Wire Cup Brushes (Fig. 8)
Fig. 8
Nylon washer
Flange
Spindle
Spindle lock button
1. Unplug tool and place it upside down on a level surface. Remove
any accessories from spindle.
NOTE: Never use a guard with a wire cup brush.
2. Thread flange and nylon washer onto spindle. Attach wire cup
brush onto spindle.
3. Press in the spindle lock button while tightening brush with a wrench
(not provided with tool).
4. To remove wire cup brush, unplug tool and reverse procedure.
Installing Wire Wheel Brushes (Fig. 9)
Wire cup brush
WARNING!
Fig. 9
Wire wheel brush
Nylon
washer
Guard
Flange
Spindle
Spindle
lock
button
1. Unplug tool and place it upside down on a level surface. Remove any
accessories from spindle.
2. Thread flange and nylon washer onto spindle. Attach guard and
wire wheel brush onto spindle (see Fig. 4 for attaching guard).
Position the guard in the location which offers best control and
guard protection. For operating zones that provide maximum protection for the operator, see "Grinding".
3. Press in the spindle lock button while tightening brush with a wrench
(not provided with tool).
4. To remove wire wheel brush and guard, unplug tool and reverse
procedure.
Using Wire Brushes
WARNING!
Never exceed Maximum Safe Operating Speed of the brush.
Do not use a damaged brush or one which is functioning
improperly (throwing wires, out-of-balance, etc.). These
conditions increase the possibility of further brush failure
and possible injury. Discard and replace damaged brushes
immediately.
Because the wires on wire wheel brushes are directed
towards the operator, a Type 27 guard must be used to
protect the operator when fatigued wires break.
page 10
1. Do not wear loose clothing when using wire brushes. The wires
may catch on loose clothing and pull the clothing into the moving
parts.
2. Firmly grasp rear handle and side handle before starting and while
using tool. Always test the wire brush for balance and loose or
damaged wires by running tool at no load speed for at least one
minute before applying it to your work.
3. When applying brush to work, avoid using too much pressure. This
causes over-bending of wires and heat build-up resulting in premature wire breakage, rapid dulling and reduced brush life.
Instead of using more pressure, try a wire wheel brush with more
aggressive cutting action (increased wire size, decreased wire
length or different brush type, i.e. knot type instead of crimped wire
type).
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