Use and Care Manual

ManualsBrandsMilwaukee ManualsAngle GrindersM18 18-Volt Lithium-Ion Cordless 4-1/2 in. Cut-Off/Grinder with Two 4.0 Ah Batteries, Charger and Contractor Bag

accessory and run the power tool at maximum

no-load speed for one minute. Damaged accesso-

ries will normally break apart during this test time.

• Wear personal protective equipment. Depend-

ing on application, use face shield, safety

goggles or safety glasses. As appropriate,

wear dust mask, hearing protectors, gloves

and work shop apron capable of stopping

small abrasive or workpiece fragments. The

eye protection must be capable of stopping ﬂ ying

debris generated by various operations. The dust

mask or respirator must be capable of ﬁ ltrating

particles generated by your operation. Prolonged

exposure to high intensity noise may cause hear-

ing loss.

• Keep bystanders a safe distance away from

work area. Anyone entering the work area

must wear personal protective equipment.

Fragments of workpiece or of a broken accessory

may ﬂ y away and cause injury beyond immediate

area of operation.

• Hold power tool by insulated gripping surfaces

only, when performing an operation where the

cutting accessory may contact hidden wiring

or its own cord. Cutting accessory contacting a

“live” wire may make exposed metal parts of the

power tool “live” and shock the operator.

• Position the cord clear of the spinning acces-

sory. If you lose control, the cord may be cut or

snagged and your hand or arm may be pulled into

the spinning accessory.

• Never lay the power tool down until the acces-

sory has come to a complete stop. The spinning

accessory may grab the surface and pull the power

tool out of your control.

• Do not run the power tool while carrying it at

your side. Accidental contact with the spinning

accessory could snag your clothing, pulling the

accessory into your body.

• Regularly clean the power tool’s air vents. The

motor’s fan will draw the dust inside the housing

and excessive accumulation of powdered metal

may cause electrical hazards.

• Do not operate the power tool near ﬂ ammable

materials. Sparks could ignite these materials.

• Do not use accessories that require liquid

coolants. Using water or other liquid coolants

may result in electrocution or shock.

Kickback and Related Warnings

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 power tool to be forced in

the direction opposite of the accessory’s rotation

at the point of the binding.

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. 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.

SPECIFIC SAFETY RULES

• Use power tools only with speciﬁ cally desig-

nated battery packs. Use of any other battery

packs may create a risk of injury and ﬁ re.

• When battery pack is not in use, keep it away

from other metal objects like paper clips,

coins, keys, nails, screws, or other small metal

objects that can make a connection from one

terminal to another. Shorting the battery termi-

nals together may cause burns or a ﬁ re.

• Under abusive conditions, liquid may be eject-

ed from the battery; avoid contact. If contact

accidentally occurs, ﬂ ush with water. If liquid

contacts eyes, additionally seek medical help.

Liquid ejected from the battery may cause irritation

or burns.

SERVICE

• Have your power tool serviced by a qualiﬁ ed

repair person using only identical replacement

parts. This will ensure that the safety of the power

tool is maintained.

Safety Warnings Common for Grinding, Sand-

ing, Wire Brushing or Abrasive Cutting-Off

Operations:

• This power tool is intended to function as a

grinder, sander, wire brush or cut-off tool. Read

all safety warnings, instructions, illustrations

and speciﬁ cations provided with this power

tool. Failure to follow all instructions listed below

may result in electric shock, ﬁ re and/or serious

injury.

• Operations such as polishing are not recom-

mended to be performed with this power tool.

Operations for which the power tool was not de-

signed may create a hazard and cause personal

injury.

• Do not use accessories which are not speciﬁ -

cally designed and recommended by the tool

manufacturer. Just because the accessory can

be attached to your power tool, it does not assure

safe operation.

• The rated speed of the accessory must be at

least equal to the maximum speed marked on

the power tool. Accessories running faster than

their rated speed can break and ﬂ y apart.

• The outside diameter and the thickness of your

accessory must be within the capacity rating

of your power tool. Incorrectly sized accessories

cannot be adequately guarded or controlled.

• The arbour size of wheels, ﬂ anges, backing

pads or any other accessory must properly ﬁ t

the spindle of the power tool. Accessories with

arbour holes that do not match the mounting hard-

ware of the power tool will run out of balance, vibrate

excessively and may cause loss of control.

• Do not use a damaged accessory. Before each

use inspect the accessory such as abrasive

wheels for chips and cracks, backing pad for

cracks, tear or excess wear, wire brush for

loose or cracked wires. If power tool or acces-

sory is dropped, inspect for damage or install

an undamaged accessory. After inspecting and

installing an accessory, position yourself and

bystanders away from the plane of the rotating

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.

• Maintain a ﬁ rm grip on the power tool and posi-

tion your body and arm to allow you to resist

kickback forces. Always use auxiliary handle,

if provided, 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.

• Never place your hand near the rotating acces-

sory. Accessory may kick back over your hand.

• Do not position your body in the area where

power tool will move if kickback occurs. Kick-

back 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

accessory. 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 fre-

quent kickback and loss of control.

Safety Warnings Specific for Grinding and

Abrasive Cutting-Off Operations:

• Use only wheel types that are recommended

for your power tool and the speciﬁ c guard

designed for the selected wheel. Wheels for

which the power tool was not designed can not

be adequately guarded and are unsafe.

• The guard must be securely attached to the

power tool and positioned for maximum safety,

so the least amount of wheel is exposed to-

wards the operator. The guard helps to protect

operator from broken wheel fragments and ac-

cidental contact with wheel.

• 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 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 Speciﬁ c for Abra-

sive Cutting-Off Operations:

• Do not “jam” the cut-off wheel or apply ex-

cessive 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 possible kickback may propel the spin-

ning 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

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.

• Support panels or any oversized workpiece to

minimize the risk of wheel pinching and kick-

back. 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 “pocketcut”

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 Speciﬁ c for Sanding Opera-

tions:

• Do not use excessively oversized sanding disc

paper. Follow manufacturers recommenda-

tions, 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 Speciﬁ c for Wire Brushing

Operations:

• Be aware that wire bristles are thrown by the

brush even during ordinary operation. Do not

over stress 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 workload

and centrifugal forces.

Additional Safety Warnings

• 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.