Operator’s Manual

4
5
• Support panels or any oversized workpiece to
minimize the risk of wheel pinching and kickback.
Large workpieces tend to sag under their own weight.
Supports must be placed under the workpiece near
the line of cut and near the edge of the workpiece on
both sides of the wheel.
• Use extra caution when making a “pocket cut”
into existing walls or other blind areas. The pro-
truding wheel may cut gas or water pipes, electrical
wiring or objects that can cause kickback.
Safety Warnings Specic for Sanding Operations:
• Do not use excessively oversized sanding disc
paper. Follow manufacturers recommendations,
when selecting sanding paper. Larger sanding
paper extending beyond the sanding pad presents a
laceration hazard and may cause snagging, tearing
of the disc or kickback.
Safety Warnings Specic for Wire Brushing Op-
erations:
• Be aware that wire bristles are thrown by the
brush even during ordinary operation. Do not
overstress the wires by applying excessive load
to the brush. The wire bristles can easily penetrate
light clothing and/or skin.
• If the use of a guard is recommended for wire
brushing, do not allow any interference of the
wire wheel or brush with the guard. Wire wheel
or brush may expand in diameter due to work load
and centrifugal forces.
Additional Safety Warnings
•
WARNING
To reduce the risk of injury in ap-
plications that produce a consid-
erable amount of dust, use an OSHA compliant
dust extraction solution in accordance with the
solution’s operating instructions.
• Always use common sense and be cautious when
using tools. It is not possible to anticipate every
situation that could result in a dangerous outcome.
Do not use this tool if you do not understand these
operating instructions or you feel the work is beyond
your capability; contact Milwaukee Tool or a trained
professional for additional information or training.
• Maintain labels and nameplates. These carry im-
portant 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 specially designed to
lter out microscopic particles.
SPECIFICATIONS
Volts .............................................................. 18 DC
Battery Type .................................................M18™
Charger Type ................................................M18™
Recommended Ambient
Operating Temperature ......................0°F to 125°F
Cat. No. ..................................................... 2980-20
Rated RPM .....................................................9 000
Spindle Thread Size .................................... 5/8"-11
Max Capacity ...............................................6"x1/4"
Cat. No. ..................................................... 2981-20
Rated RPM .....................................................9 000
Spindle Thread Size .................................... 5/8"-11
Max Capacity ...............................................6"x1/4"
SYMBOLOGY
Volts
Direct Current
Rated Revolutions per Minute (RPM)
C
US
UL Listing Mark for Canada and the U.S.
FUNCTIONAL DESCRIPTION
1. Spindle lock
2. Handle
3. Dust screen
4. Switch lock-off (2980-20)
5. Paddle switch (2980-20)
Slide switch (2981-20)
6. Side handle
Cat. No. 2980-20
1
6
5
4
7
3
7. Guard
8. Accessory
9. Guard lock lever
2
Cat. No.
2981-20
5
2
9
8
ASSEMBLY
WARNING
Recharge only with the charger
specied for the battery. For spe-
cic charging instructions, read the operator’s
manual supplied with your charger and battery.
Removing/Inserting the Battery
To remove the battery, push in the release buttons
and pull the battery pack away from the tool.
WARNING
Always remove battery pack before
changing or removing accessories.
To insert the battery, slide the pack into the body
of the tool. Make sure it latches securely into place.
WARNING
To reduce the risk of injury when
grinding, always use properly in-
stalled guards.
• Do not position your body in the area where
power tool will move if kickback occurs. Kickback
will propel the tool in direction opposite to the wheel’s
movement at the point of snagging.
• Use special care when working corners, sharp
edges etc. Avoid bouncing and snagging the ac-
cessory. Corners, sharp edges or bouncing have a
tendency to snag the rotating accessory and cause
loss of control or kickback.
• Do not attach a saw chain woodcarving blade or
toothed saw blade. Such blades create frequent
kickback and loss of control.
Safety Warnings Specic for Grinding and Abra-
sive Cutting-Off Operations:
• Use only wheel types that are recommended for
your power tool and the specic guard designed
for the selected wheel. Wheels for which the power
tool was not designed cannot be adequately guarded
and are unsafe.
• The grinding surface of centre depressed wheels
must be mounted below the plane of the guard lip.
An improperly mounted wheel that projects through
the plane of the guard lip cannot be adequately
protected.
• The guard must be securely attached to the power
tool and positioned for maximum safety, so the
least amount of wheel is exposed towards the
operator. The guard helps to protect the operator
from broken wheel fragments, accidental contact
with wheel and sparks that could ignite clothing.
• Wheels must be used only for recommended
applications. For example: do not grind with the
side of cut-off wheel. Abrasive cut-off wheels are
intended for peripheral grinding, side forces applied
to these wheels may cause them to shatter.
• Always use undamaged wheel anges that are of
correct size and shape for your selected wheel.
Proper wheel anges support the wheel thus reducing
the possibility of wheel breakage. Flanges for cut-off
wheels may be different from grinding wheel 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 Specic for Abrasive
Cutting-Off Operations:
• Do not “jam” the cut-off wheel or apply excessive
pressure. Do not attempt to make an excessive
depth of cut. Overstressing the wheel increases
the loading and susceptibility to twisting or binding
of the wheel in the cut and the possibility of kickback
or wheel breakage.
• Do not position your body in line with and behind
the rotating wheel. When the wheel, at the point of
operation, is moving away from your body, the pos-
sible kickback may propel the spinning wheel and
the power tool directly at you.
• When wheel is binding or when interrupting a cut
for any reason, switch off the power tool and hold
the power tool motionless until the wheel comes
to a complete stop. Never attempt to remove the
cut-off wheel from the cut while the wheel is in
motion otherwise kickback may occur. Investigate
and take corrective action to eliminate the cause of
wheel binding.
• Do not restart the cutting operation in the work-
piece. Let the wheel reach full speed and care-
fully re-enter the cut. The wheel may bind, walk
up or kickback if the power tool is restarted in the
workpiece."
Removing/Installing/Adjusting the Guard
This tool is shipped with a guard. Always use a guard
unless otherwise indicated by these instructions.
1. To remove the guard, remove the battery pack
and remove any accessories from spindle.
2. Press in the guard lock lever and rotate the guard
to line up the tabs on the grinder with the slots in
the guard.
3. Press in the lock lever and lift the guard straight
up and away from the tool.
4. To install the guard, remove the battery pack and
remove any accessories from the spindle.
NOTE: Use only 4-1/2" grinding wheels with 4-1/2"
guards (available as an accessory). Use only 6"
grinding wheels with 6" guards.
5. Line up the tabs on the grinder with the slots in
the guard.
6. Press in the guard lock lever and press the guard
onto the tool.
7. To adjust the guard, press in the guard lock lever
and rotate the guard to one of ve detent slots.
WARNING! Always adjust the guard to provide the
operator with maximum protection while operating.
Operator's Zones
WARNING
To reduce the risk of injury, always
use a side handle when using this
tool. Hold securely.
Installing Side Handle
The side handle may be installed on either side of
the gear case. Position the side handle in the loca-
tion which offers best control and guard protection.
To install, thread side handle into side handle socket
and tighten securely.
WARNING
To reduce the risk of injury, the
operator should be instructed in
the use, care and protection of grinding wheels.