3
4/18
2018 OEMTOOLS
™
4-1/2" ANGLE GRINDER
Operating Instructions and Parts Manual
24663
15. Never lay the Angle Grinder down until the accessory has come to a complete stop. The
spinning accessory may grab the surface and pull the angle grinder out of your control.
16. Do not run the Angle Grinder while carrying it at your side. Accidental contact with the
spinning accessory could snag your clothing, pulling the accessory into your body.
17. Regularly clean the angle grinder’s air vents. The motor’s fan will draw the dust
inside the housing and excessive accumulation of powdered metal may cause
electrical hazards.
18. Do not operate the Angle Grinder near flammable materials. Sparks could
ignite these materials.
19. Do not use accessories that require liquid coolants. Using water or other liquid
coolants may result in electrocution or shock.
KICKBACK AND RELATED WARNINGS
1. Kickback is a sudden reaction to a pinched or snagged rotating wheel, backing
pad, brush or any other accessory. Pinching or snagging causes rapid stalling of the
rotating accessory which in turn causes the uncontrolled angle grinder to be forced
in the direction opposite of the accessory’s rotation at the point of the binding.
2. For example, if an abrasive wheel is snagged or pinched by the workpiece, the
edge of the wheel that is entering into the pinch point can dig into the surface of the
material causing the wheel to climb out or kick out.
3. The wheel may either jump toward or away from the operator, depending on
direction of the wheel’s movement at the point of pinching. Abrasive wheels may
also break under these conditions.
4. Kickback is the result of power tool misuse and/or incorrect operating procedures or
conditions and can be avoided by taking proper precautions as given below.
5. Maintain a firm grip on the Angle Grinder and position your body and arm
to allow you to resist kickback forces. Always use the auxiliary handle for
maximum control over kickback or torque reaction during start-up. The
operator can control torque reactions or kickback forces if proper precautions
are taken.
6. Never place your hand near the rotating accessory. The accessory may kickback
over your hand.
7. Do not position your body in the area where the angle grinder will move if kickback
occurs. Kickback will propel the tool in the direction opposite to the wheel’s
movement at the point of snagging.
8. Use special care when working corners, sharp edges etc. Avoid bouncing and
snagging the accessory. Corners, sharp edges or bouncing have a tendency to snag
the rotating accessory and cause loss of control or kickback.
9. Do not attach a saw chain woodcarving blade or toothed saw blade. Such blades
create frequent kickback and loss of control.
ADDITIONAL WARNINGS FOR GRINDING
1. Use only wheel types that are recommended for your Angle Grinder and the specific
guard designed for the selected wheel. Wheels for which the power tool was not
designed cannot be adequately guarded and are unsafe.
2. The guard must be securely attached to the Angle Grinder and positioned for
maximum safety, so the least amount of wheel is exposed towards the operator. The
guard helps to protect operator from broken wheel fragments and accidental contact
with the wheel.
3. 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 and side forces applied to these wheels may cause them to shatter.
4. Always use undamaged wheel flanges that are of correct size and shape for your
selected wheel. Proper wheel flanges support the wheel thus reducing the possibility of
wheel breakage. Flanges for cut-off wheels may be different from grinding wheel flanges.
5. Do not use worn down wheels from larger power tools. Wheels intended for a larger
Angle Grinder are not suitable for the higher speed of a smaller tool and may burst.
ADDITIONAL SAFETY WARNINGS SPECIFIC FOR
ABRASIVE CUTTING-OFF OPERATIONS
1. 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.
2. 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 possible
kickback may propel the spinning wheel and the power tool directly at you.
3. 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.
4. 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.
5. Do not restart the cutting operation in the workpiece. Let the wheel reach full speed
and carefully reenter the cut. The wheel may bind, walk up or kickback if the power
tool is restarted in the workpiece.
6. 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.
7. Use extra caution when making a “pocket cut” into existing walls or other blind
areas. The protruding wheel may cut gas or water pipes, electrical wiring or objects
that can cause kickback.
WARNING
SAFETY WARNINGS SPECIFIC FOR
SANDING OPERATIONS
Do not use excessively oversized sanding disc paper. Follow manufacturer’s
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 SPECIFIC FOR
POLISHING OPERATIONS
Do not allow any loose portion of the polishing bonnet or its attachment strings to
spin freely. Tuck away or trim any loose attachment strings. Loose and spinning
attachment strings can entangle your fingers or snag on the workpiece.
SAFETY WARNINGS SPECIFIC FOR
WIRE BRUSHING OPERATIONS
1. Be aware that wire bristles are thrown by the brush even during ordinary operation.
2. Do not overstress the wires by applying excessive load to the brush. The wire
bristles can easily penetrate light clothing and/or skin.
3. 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.
IMPORTANT SAFETY INSTRUCTIONS
The warnings, precautions, and instructions discussed in this manual cannot
cover all possible conditions and situations that may occur. The operator must
understand that common sense and caution are factors which cannot be built
into this product, but must be supplied by the operator.
DISPOSAL
At the end of the useful life of the OEMTOOLS™ Angle Grinder, dispose of the
components according to all state, federal, and local regulations.
SPECIFIC SAFETY RULES
1. For your safety, do not plug in your Angle Grinder until you have read and
understood this Owner’s Manual.
2. Always wear eye protection that conforms with CSA requirements or ANSI safety
standard Z87.1.
3. Always wear gloves to protect your hands from hot sparks.
4. Always wear hearing protection and dust mask. Use only in well ventilated areas.
Use of personal protective equipment and working in a safe environment will
reduce the risk of injury.
5. Always keep hands out of the path of the grinding disc. Avoid awkward hand positions
where a sudden slip could cause your hand to move into the moving blade.
6. To avoid injury from accidental starting, always unplug the angle grinder from the
power source before installing or removing grinding discs.
7. Grinding disc and guard must be securely attached as described in this Owner’s
Manual before connecting the grinder to the power source. Failure to do so will
increase the risk of serious injury if the grinding disc shatters.
8. Make sure the guard is in good condition and securely installed before operating
grinder.
