Hilti AG 125-A22 Cordless Angle Grinder ユーザーマニュアル

AG 125-A22

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Operating instructions

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ORIGINAL OPERATING INSTRUCTIONS

AG 125-A22 angle grinder

It is essential that the operating instructions

are read before the power tool is operated for

the first time.

Always keep these operating instructions to-

gether with the power tool.

Ensure that the operating instructions are

with the power tool when it is given to other

persons.

Contents Page

1 General information 1

2 Safety instructions 2

3Description 6

4Consumables 7

5 Technical data 8

6Beforeuse 9

7 Operation 10

8 Care and maintenance 11

9 Troubleshooting 11

10 Disposal 12

11 Manufacturer’s warranty - tools 13

12 EC declaration of conformity (original) 13

1These numbers refer to the illustrations. You can

find the illustrations at the beginning of the operating

instructions.

In these operating instructions, the designation “power

tool” always refers to the AG 125‑A22 cordless angle

grinder.

Operating controls and parts 1

@Guard release button

;Spindle lockbutton

=Ventilation slots

%Release buttons with additional function (charge

status display activation)

&Battery

(Switch-on interlock

)On / off switch

+Vibration-absorbing side handle

§Spindle

/Guard

:Clamping flange with O-ring

·Abrasive cutting disc / abrasive grinding disc

$Clamping nut

£“Kwik lock” quick-release clamping nut (optional)

|Wrench

1 General information

1.1 Safety notices and their meaning

DANGER

Draws attention to imminent danger that will lead to

seriousbodilyinjuryorfatality.

WARNING

Draws attention to a potentially dangerous situation that

could lead to serious personal injury or fatality.

CAUTION

Draws attention to a potentially dangerous situation that

could lead to slight personal injury or damage to the

equipment or other property.

NOTE

Draws attention to an instruction or other useful informa-

tion.

1.2 Explanation of the pictograms and other

information

Warning signs

General

warning

Obligation signs

Wear eye

protection Read the

operating

instructions

before use.

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Symbols

Rated speed Revolutions

per minute Revolutions

per minute Diameter

Location of identification data on the power tool

The type designation and serial number can be found

on the type identification plate on the machine or tool.

Makeanoteofthisdatainyouroperatinginstructions

and always refer to it when making an enquiry to your

Hilti representative or service department.

Type:

Generation: 01

Serial no.:

2 Safety instructions

NOTE

The safety rules in section 2.1 contain all general safety

rules for power tools which, in accordance with the

applicable standards, must be listed in the operating

instructions. Accordingly, some of the rules listed may

not be relevant to this power tool.

2.1 General power tool safety warnings

a) WARNING

Read all safety warnings and all instructions. Fail-

ure to follow the warnings and instructions may result

in electric shock, fire and/or serious injury. Save all

warnings and instructions for future reference.

The term “power tool” in the warnings refers to

your mains-operated (corded) power tool or battery-

operated (cordless) power tool.

2.1.1Workareasafety

a) Keep work area clean and well lit. Cluttered or dark

areas invite accidents.

b) Do not operate power tools in explosive atmo-

spheres, such as in the presence of flammable

liquids, gases or dust. Power tools create sparks

which may ignite the dust or fumes.

c) Keep children and bystanders away while operat-

ing a power tool. Distractions can cause you to lose

control.

2.1.2 Electrical safety

a) Power tool plugs must match the outlet. Never

modify the plug in any way. Do not use any ad-

apter plugs with earthed (grounded) power tools.

Unmodified plugs and matching outlets will reduce

risk of electric shock.

b) 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.

c) Do not expose power tools to rain or wet condi-

tions. Water entering a power tool will increase the

risk of electric shock.

d) 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.

e) 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.

f) If operating a power tool in a damp location is

unavoidable, use a residual current device (RCD)

protected supply. Use of an RCD reduces the risk

of electric shock.

2.1.3 Personal safety

a) 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.

b) Use personal protective equipment. Always wear

eye protection. Protective equipment such as dust

mask, non-skid safety shoes, hard hat, or hearing

protection used for appropriate conditions will reduce

personal injuries.

c) Prevent unintentional starting. Ensure the switch

is in the off‐position before connecting to power

source and/or battery pack, picking up or carrying

the tool. Carrying power tools with your finger on the

switch or energising power tools that have the switch

on invites accidents.

d) Remove any adjusting key or wrench before turn-

ing the power tool on. A wrench or a key left at-

tached to a rotating part of the power tool may result

in personal injury.

e) Do not overreach. Keep proper footing and bal-

ance at all times. This enables better control of the

power tool in unexpected situations.

f) Dress properly. Do not wear loose clothing or

jewellery. Keep your hair, clothing and gloves

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away from moving parts. Loose clothes, jewellery

or long hair can be caught in moving parts.

g) If devices are provided for the connection of dust

extraction and collection facilities, ensure these

are connected and properly used. Use of dust

collection can reduce dust-related hazards.

2.1.4 Power tool use and care

a) 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.

b) 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.

c) Disconnect the plug from the power source

and/or the battery 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 power tool accidentally.

d) Store idle power tools out of the reach of chil-

dren and do not allow persons unfamiliar with the

power tool or these instructions to operate the

power tool. Power tools are dangerous in the hands

of untrained users.

e) 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.

f) Keep cutting tools sharp and clean. Properly main-

tained cutting tools with sharp cutting edges are less

likely to bind and are easier to control.

g) Use the power tool, accessories and tool bits etc.

in accordance with these instructions, taking into

account the working conditions and the work to

be performed. Use of the power tool for opera-

tions different from those intended could result in a

hazardous situation.

2.1.5 Battery tool use and care

a) Recharge only with the charger specified by the

manufacturer. A charger that is suitable for one

type of battery pack may create a risk of fire when

used with another battery pack.

b) Use power tools only with specifically designated

battery packs. Use of any other battery packs may

create a risk of injury and fire.

c) 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 terminals together may

cause burns or a fire.

d) Under abusive conditions, liquid may be ejected

from the battery; avoid contact. If contact acci-

dentally occurs, flush with water. If liquid contacts

eyes, additionally seek medical help. Liquid ejec-

ted from the battery may cause irritation or burns.

2.1.6 Service

a) 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.

2.2 Safety warnings common for grinding, sanding,

wire brushing, polishing or abrasive cutting-off

operations

a) This power tool is intended to function as a grinder

or cut-off tool. Read all safety warnings, instruc-

tions, illustrations and specifications provided

with this power tool. Failure to follow all instruc-

tions listed below may result in electric shock, fire

and/or serious injury.

b) Operations such as sanding, wire brushing or

polishing are not recommended to be performed

with this power tool Operations for which the power

tool was not designed may create a hazard and cause

personal injury.

c) Do not use accessories which are not specifically

designed and recommended by the tool manufac-

turer. Just because the accessory can be attached

to your power tool, it does not assure safe operation.

d) 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 fly apart.

e) The outside diameter and the thickness of your

accessory must be within the capacity rating of

your power tool. Incorrectly sized accessories can-

not be adequately guarded or controlled.

f) Threaded mounting of accessories must match

the grinder spindle thread. For accessoriesmoun-

ted by flanges, the arbour hole of the accessory

must fit the locating diameter of the flange. Ac-

cessories that do not match the mounting hardware

of the power tool will run out of balance, vibrate

excessively and may cause loss of control.

g) 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 accessory

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

accessory and run the power tool at maximum

no-load speed for one minute. Damaged

accessories will normally break apart during this test

time.

h) Wear personal protective equipment. Depending

on application, use face shield, safety goggles or

safety glasses. As appropriate, wear dust mask,

hearing protectors, gloves and workshop apron

capable of stopping small abrasive or workpiece

fragments. The eye protection must be capable of

stopping flying debris generated by various opera-

tions. The dust mask or respirator must be capable of

filtrating particles generated by your operation. Pro-

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longed exposure to high intensity noise may cause

hearing loss.

i) 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 fly

away and cause injury beyond immediate area of

operation.

j) Hold the power tool by insulated gripping surfaces

only, when performing an operation where the

cutting tool may contact hidden wiring. Contact

with a "live" wire will also make exposed metal parts

of the power tool "live" and could give the operator

an electric shock.

k) Position the cord clear of the spinning accessory.

If you lose control, the cord may be cut or snagged

and your hand or arm may be pulled into the spinning

accessory.

l) Never lay the power tool down until the access-

ory has come to a complete stop. The spinning

accessory may grab the surface and pull the power

tool out of your control.

m) 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.

n) Regularly clean the power tool’s air vents. The

motor’sfanwilldrawthedustinsidethehousing

and excessive accumulation of powdered metal may

cause electrical hazards.

o) Do not operate the power tool near flammable

materials. Sparks could ignite these materials.

p) Do not use accessories that require liquid

coolants. Using water or other liquid coolants may

result in electrocution or shock.

2.3 Kickback and related warnings

Kickback is a sudden reaction to a pinched or snagged

rotating wheel, backing pad, brush or any other access-

ory. 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 intothe surface ofthe 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.

Kickback is the result of power tool misuse and/or in-

correct operating procedures or conditions and can be

avoided by taking proper precautions as given below.

a) Maintain a firm grip on the power tool and po-

sition 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.

b) Never place your hand near the rotating access-

ory. Accessory may kickback over your hand.

c) 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.

d) 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.

e) Do not attach a saw chain woodcarving blade or

toothed saw blade. Such blades create frequent

kickback and loss of control.

2.4 Safety warnings specific for grinding and

abrasive cutting-off operations

a) Use only wheel types that are recommended for

your power tool 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.

b) 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.

c) 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 op-

erator. The guard helps to protect operator from

broken wheel fragments, accidental contact with

wheel and sparks that could ignite clothing.

d) Wheels must be used only for recommended ap-

plications. For example: do not grind with the side

of cut-off wheel. Abrasive cut-off wheels are inten-

ded for peripheral grinding, side forces applied to

these wheels may cause them to shatter.

e) Always use undamaged wheel flanges that are of

correct size and shape for your selected wheel.

Proper wheel flanges support the wheel thus redu-

cing the possibility of wheel breakage. Flanges for

cut-off wheels may be different from grinding wheel

flanges.

f) 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.

2.5 Additional safety warnings specific for abrasive

cutting-off operations

a) 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.

b) 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

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possible kickback may propel the spinning wheel

and the power tool directly at you.

c) 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.

d) Do not restart the cutting operation in the work-

piece. Let the wheel reach full speed and carefully

re-enter the cut. The wheel may bind, walk up or

kickback if the power tool is restarted in the work-

piece.

e) 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.

f) 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.

2.6 Additional safety instructions

2.6.1 Personal safety

a) Modification of the machine or tampering with its

parts is not permissible.

b) Wear ear protectors. Exposure to noise can cause

hearing loss.

c) Always hold the power tool securely with both

hands on the grips provided. Keep the grips dry,

clean and free from oil and grease.

d) Breathing protection must be worn if the power

tool is used without a dust removal system for

work that creates dust.

e) Improve the blood circulation in your fingers by

relaxing your hands and exercising your fingers

during breaks between working.

f) Avoid touching rotating parts. Switch the power

tool on only after bringing it into position at the

workpiece. Touching rotating parts, especially rotat-

ing insert tools, may lead to injury.

g) The appliance is not intended for use by debilit-

ated persons who have received no special train-

ing. Keep the appliance out of reach of children.

h) Dust from materials, such as paint containing lead,

some wood species, concrete / masonry / stone con-

taining silica, and minerals as well as metal, may be

harmful. Contact with or inhalation of the dust may

cause allergic reactions and/or respiratory or other

diseases to the operator or bystanders. Certain kinds

of dust are classified as carcinogenic such as oak and

beech dust, especially in conjunction with additives

for wood conditioning (chromate, wood preservative).

Material containing asbestos must only be treated by

specialists. Wheretheuseofadust-extraction

device is possible it shall be used. To achieve a

high level of dust collection, use a suitable dust

extractor. When indicated wear a respirator ap-

propriate for the type of dust generated. Ensure

that the workplace is well ventilated. Follow na-

tional requirements for the materials you want to

work with.

i) The user and any other persons in the vicinity

must wear suitable eye protection, a hard hat,

ear protection, protective gloves and breathing

protection while the tool is in use.

j) If the electric tool detects that it is being operated

beyond its limits or if the battery is fully discharged,

it may happen that the disc is no longer braked by

the motor.

2.6.2 Power tool use and care

a) Grinding discs must be stored and handled care-

fully in accordance with the manufacturer’s in-

structions.

b) Never use the power tool without the guard.

c) Secure the workpiece. Use clamps or a vice to

secure the workpiece. The workpiece is thus held

more securely than by hand and both hands remain

free to operate the power tool.

d) Do not use cutting discs for grinding.

e) Tighten the disc and flange securely. If the nut

securing the disc and flange is not tightened firmly,

thediscmayworkloosefromthespindledueto

the braking effect of the power tool’s motor after

switching off.

2.6.3 Electrical safety

a) Before beginning work, check the working area

(e.g. using a metal detector) to ensure that no

concealed electric cables or gas and water pipes

are present. External metal parts of the power tool

may become live, for example, when an electric cable

is damaged accidentally. This presents a serious risk

of electric shock.

b) Dirty or dusty power tools that have been used fre-

quently for work on conductive materials should

be checked at regular intervals at a Hilti Service

Center. Under unfavorable circumstances, damp-

ness or dust adhering to the surface of the tool,

especially dust from conductive materials, may lead

to damage to the tool.

2.6.4 Careful handling and use of batteries

a) Observe the special guidelines applicable to the

transport, storage and use of Li-ion batteries.

b) Do not expose batteries to high temperatures and

keep them away from fire. This presents a risk of

explosion.

c) Do not disassemble, squash or incinerate batter-

ies and do not subject them to temperatures over

80°C. This presents a risk of fire, explosion or injury

through contact with caustic substances.

d) Do not charge or continue to use damaged bat-

teries (e.g. batteries with cracks, broken parts,

bent or pushed-in and/or pulled-out contacts).

e) If the battery is too hot to touch it may be defective.

Place the tool in a location where it can be kept

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under observation, well away from flammable ma-

terials, and allow it to cool down. Contact Hilti

Service after the battery has cooled down.

2.6.5Workareasafety

a) If the work involves breaking right through, take

the appropriate safety measures at the opposite

side. Parts breaking away could fall out and / or fall

down and injure other persons.

b) Slits cut in loadbearing walls of buildings or other

structures may influence the statics of the structure,

especially when steel reinforcing bars or load-bearing

components are cut through. Consult the structural

engineer, architect, or person in charge of the

building project before beginning the work.

3 Description

3.1 Use of the product as directed

The power tool is designed for cutting and grinding metals and mineral materials.

Do not use the battery as a power source for other unspecified appliances.

Working with metals: Only with synthetic resin-bonded, fiber-reinforced grinding or cutting discs.

Working with mineral materials: Cutting and slitting using the corresponding guard (DC-EX 125/5"-C), grinding using

the corresponding guard (DG-EX 125/5").

The power tool may be used only for dry cutting or grinding.

It is recommended that a dust removal system consisting of matched components, i.e. dust removal hood and a

suitable Hilti vacuum cleaner, are used for working on mineral materials such as concrete or stone. These serve to

protect the operator and increase the life of the power tool and disc used.

Working on materials hazardous to the health (e.g. asbestos) is not permissible.

Observe the national health and safety requirements.

To avoid the risk of injury, use only genuine Hilti accessories and insert tools.

The power tool is designed for professional use and may be operated, serviced and maintained only by trained,

authorized personnel. This personnel must be informed of any special hazards that may be encountered. The power

tool and its ancillary equipment may present hazards when used incorrectlybyuntrainedpersonnelorwhenusednot

as directed.

3.2 Items supplied as standard include:

1 Power tool

1Sidehandle

1Guard

1Frontcover

1 Clamping flange

1Clampingnut

1Wrench

1 Operating instructions

NOTE

Accessories can be found at your Hilti Center or online at www.hilti.com.

3.3 Additional items required for operating the power tool

A suitable battery of the specified type (see table in the Technical Data section) and a suitable battery charger from

the C 4⁄36 series.

3.4 Temperature-dependent motor protection

The temperature-dependent motor protection system prevents the power tool overheating by monitoring current input

and motor temperature.

In the event of motor overload due to application of excessive pressure to the disc, performance will drop noticeably

or the power tool may stop running (avoid stalling the power tool in this way).

If the power tool has been overloaded, release the pressure applied and then allow it to run under no load for approx.

30 seconds.

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3.5 DC‑EX 125/5"‑C compact dust removal hood for cutting 2

For cutting mineral materials.

CAUTION

Use of this guard for working on metal is not permissible.

3.6 Guard with front cover 3

CAUTION

When grinding with straight grinding discs and cutting with cutting discs in metalworking applications, use the

guard with front cover.

3.7 DG-EX 125/5" dust removal hood for grinding 4

The power tool is suitable only for occasional use with diamond cup wheels for grinding mineral materials.

CAUTION

Use of this guard for working on metal is not permissible.

3.8 Lithium‑ion battery charge status

When the lithium-ion battery is in use, the charge status can be indicated bygentlypressingoneofthebatteryrelease

buttons (press until resistance is felt - do not release the battery). The display on the rear of the battery provides the

following information:

LEDs light constantly LEDs blink Charge status C

LED1,2,3,4 -C≧75%

LED1,2,3 -50 % ≦ C < 75 %

LED 1, 2 -25 % ≦ C < 50 %

LED 1 -10 % ≦ C < 25 %

-LED 1 C<10%

NOTE

Indication of the charge status is not possible while the power tool is in operation or immediately after operation. If the

battery charge status LEDs flash, please refer to the information given in the Troubleshooting section.

4Consumables

Discs with a diameter of max. 125 mm, designed for a speed of 11000/min and a peripheral speed of 80 m/sec,

and with a maximum thickness of 6.4 mm (abrasive grinding discs) or 2.5 mm (abrasive cutting discs).

Discs Application Designation Material

Abrasive cutting disc Cutting, slitting AC‑D metal

Diamond cutting disc Cutting, slitting DC‑D mineral

Abrasive grinding disc Rough grinding AG‑D, AF‑D, AN‑D metal

Diamond grinding disc Rough grinding DG‑CW mineral

Assignment of discs to the equipment used

Item Equipment AC‑D AG-D AF-D AN-D DG‑CW DC‑D

AGuard XXXXXX

B Front cover (in combin-

ation with A) X----X

C DG‑EX 125/5" surface

guard

----X-

D DC‑EX 125/5"-C com-

pact guard (in combin-

ation with A)

-----X

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Item Equipment AC‑D AG-D AF-D AN-D DG‑CW DC‑D

ESidehandle XXXXXX

F DC BG 125 hoop grip

(optional for E) XXXXXX

GClampingnut XXXXXX

H Clamping flange X X X X X X

I Kwick-Lock (optional

for G) XXXX-X

5 Technical data

Right of technical changes reserved.

Power tool AG 125‑A22

Rated voltage 21.6 V

Rated speed 9,500/min

Max. washer diameter Ø125mm

Weight in accordance with EPTA procedure 01/2003 2.7 kg

Battery B 22/2.6 Li‑Ion (01) B 22/3.3 Li‑Ion (01)

Rated voltage 21.6 V 21.6 V

Capacity 2.6 Ah 3.3 Ah

Energy capacity 56.16 Wh 71.28 Wh

Weight 0.78 kg 0.78 kg

Information about the power tool and applications

Drive spindle thread (arbor size) M 14

Spindle length 22 mm

NOTE

The vibration values given in these instructions have been measured in accordance with a standardized test and may

be used to compare one electric tool with another. They may be used for a preliminary assessment of exposure.

The data given represents the main applications of the electric tool. However, if the electric tool is used for different

applications, with different accessories or is poorly maintained, the data may vary. This may significantly increase

exposure over the total working period. An accurate estimation of exposure should also take into account the times

when the tool is switched off, or when it is running but not actually being used for a job. This may significantly reduce

exposure over the total working period. Identify additional safety measures to protect the operator from the effects of

noise and/or vibration, for example: maintain the tool and the accessories, keep the hands warm, organization of work

patterns.

Noise information (as perEN 60745‑2‑3):

Typical A-weighted sound power level, LWA 94 dB (A)

Typical A-weighted emission sound pressure level, LpA 83 dB (A)

Uncertainty for the given sound level, K 3 dB (A)

Vibration information in accordance with EN 60745

Triaxial vibration value (vibration vector sum) for the

AG 125‑A22 Measured in accordance with EN 60745‑2‑3

Surface grinding using the vibration-absorbing side

handle, ah,AG

3.8 m/s²

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8

Uncertainty (K) 1.5 m/s²

Additional information Other applications, such as cutting, may produce vibra-

tion values that deviate from the given values.

6Beforeuse

6.1 Inserting the battery 5

CAUTION

Check that the power tool is switched off and the

switch interlock activated before fitting the battery.

CAUTION

Before inserting the battery in the power tool, check

to ensure that the battery terminals and the contacts

in the power tool are free from foreign objects.

1. CAUTION If the battery is not fitted correctly

itmaydropoutandfallwhiletheworkisin

progress.

CAUTION A falling battery may present a risk of

injury to yourself and others.

Before beginning the work, check that the battery is

securely seated in the tool.

6.2 Removing the battery from the power tool 6

6.3 Transport and storage of batteries

CAUTION

Fire hazard. Never transport batteries in loose, bulk form.

There is a risk of short circuiting.

Pull the battery out of the locked position (working posi-

tion) and move it into the first latching position (transport

position).

Observe national and international transport regulations

when shipping batteries (transportation by road, rail, sea

or air).

6.4 Fitting the side handle

Screw the side handle into one of the threaded bushings

provided.

6.5 Guards

CAUTION

Wear gloves when fitting or removing parts, when

making adjustments or when remedying malfunc-

tions.

Read the instructions for fitting the corresponding guard.

6.5.1 Fitting the guard 7

NOTE

The guard is equipped with locating lugs that ensure only

guards of a type suitable for use with the power tool can

be fitted. The locating lugs of the guard fit into the guard

mount on the power tool.

1. Fit the guard onto the drive spindle collar so that the

two triangular marks on the guard and on the power

tool are in alignment.

2. Push the guard onto the drive spindle collar; press

the guard release button.

3. Rotate the guard until it engages and the guard

release button jumps back into its original position.

6.5.1.1 Adjusting the guard

Press the guard release button and then rotate the guard

until it engages in the desired position.

6.5.2 Removing the guard (hood)

Press the guard release button and remove the guard.

6.5.3 Fitting and removing the front cover 8

NOTE

If you use the front cover, fit it by pushing it onto the

guard.

1. Press the front cover onto the standard guard, with

the closed side positioned as shown in the illustra-

tion, until it engages.

2. To remove the front cover, release the catch and

then pull the front cover away from the standard

guard.

6.5.4 Positioning the DC‑EX 125⁄5" cutting

guard 9

NOTE

Take care to ensure that the on / off switch is freely

accessible and operable at all times.

6.6 Fitting and removing discs

NOTE

Diamond discs must be replaced when the cutting or

grinding performance drops significantly. This generally

is the case when the segments reach a height of less

than 2 mm. Other discs must be replaced when the

cutting performance drops significantly or other parts of

the angle grinder (not the disc) come into contact with

the material you are working on. Abrasive discs generally

have to be replaced when the durability date has been

reached.

6.6.1 Fitting discs  

WARNING

Tighten the disc andflange securely. If the nut securing

thediscandflangeisnottightenedfirmly,thediscmay

workloosefromthespindleduetothebrakingeffectof

the power tool’s motor after switching off.

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9

1. Remove the battery from the power tool.

2. CAUTION The clamping flange is equipped with

an O-ring. If this O-ring is missing, the clamping

flange must be replaced.

Fit the clamping flange onto the drive spindle (keyed

fit to prevent slipping/rotation).

3. Fit the disc.

4. Screw on the clamping nut corresponding to the

type of disc fitted .

5. CAUTION The spindle lockbutton may be

pressed only when the drive spindle is

motionless. There is otherwise a risk of causing

irreparabledamagetothegearingorthatthedisc

works loose.

Press the spindle lockbutton and hold it in this

position.

6. Use the wrench to tighten the clamping nut securely,

then release the spindle lockbutton and remove the

wrench.

6.6.2 Removing discs

1. Remove the battery from the power tool.

2. Press the drive spindle lockbutton and hold it in this

position.

3. Release the clamping nut by gripping it with the

wrench and turning the nut counterclockwise.

4. Release the drive spindle lockbutton and remove

the disc.

6.7 Fitting and removing discs using Kwik lock

NOTE

The Kwik lock nut may be used instead of the standard

clamping nut. No tools are then required for changing

discs.

CAUTION

When operating the power tool, take care to ensure

that the Kwik lock nut does not come into contact with

the working surface. Do not use a damaged Kwik lock

nut.

6.7.1 Fitting discs using the Kwik lock clamping

nut 

NOTE

The arrow on the upper surface of the nut must be within

the index marks. If the arrow is not within the index marks

when the nut is tightened it will be impossible to release

the nut by hand. In this case, use the pin wrench to

release the Kwik lock nut (do not use a pipe wrench!).

1. Remove the battery from the power tool.

2. Clean the clamping flange and the quick-release

clamping nut.

3. CAUTION The clamping flange is equipped with

an O-ring. If this O-ring is missing, the clamping

flange must be replaced.

Fit the clamping flange onto the drive spindle.

4. Fit the disc.

5. Screw the Kwik lock clamping nut onto the spindle

until it contacts the disc (the side with the lettering

should be visible after the nut is screwed on).

6. CAUTION The spindle lockbutton may be

pressed only when the drive spindle is

motionless. Thereisotherwiseariskofcausing

irreparable damage to the gearing or that the disc

works loose.

Press the spindle lockbutton and hold it in this

position.

7. Use the wrench to tighten the clamping nut or,

respectively, rotate the disc firmly by hand in a

clockwise direction until the Kwik lock nut is tight,

then release the spindle lockbutton and remove the

wrench (where applicable).

6.7.2 Removing discs secured with Kwik lock

1. Remove the battery from the power tool.

2. Release the Kwik lock nut by turning the knurled ring

counterclockwise. (Use the pin wrench to release the

Kwik lock nut if very tight. Do not use a pipe wrench.)

7Operation

WARNING

Always use the side handle with the power tool (use

the hoop handle as an option).

CAUTION

The insert tool may get hot during use. Wear protective

gloves when changing insert tools.

7.1 Rough grinding

CAUTION

Never use abrasive cutting discs for grinding.

Best results are obtained when the disc maintains an

angle of 5° to 30° with the working surface when grinding.

Move the power tool to and fro while applying moderate

pressure. This will avoid overheating and discoloration of

the workpiece and ensure an even surface finish.

7.2 Cutting

When cutting, apply moderate feed pressure and do not

tilt the power tool or, respectively, the cutting disc (hold

at approx. 90° to the surface being cut). For best results,

start cutting at the smallest cross section when cutting

profiles and square tube.

7.3 On / off switch with switch-on interlock 

Theon/offswitchwithsafetylock(switch-oninterlock)

gives you full control of the switch function and avoids

unintentional restarting.

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10

1. Push the safety lock (switch-on interlock) forward to

unlock the on / off switch and then press the switch

fully.

2. The safety lock (switch-on interlock) returns auto-

matically to the locked position when the on / off

switch is released.

8 Care and maintenance

WARNING

Repairs to the electrical section of the power tool may

be carried out only by trained electrical specialists.

CAUTION

Before beginning cleaning, remove the battery in or-

der to prevent the electric toolstarting unintentionally.

8.1 Care of the power tool

DANGER

Under extreme conditions, when used for working on

metal, conductive dust may accumulate inside the tool.

This may have an adverse effect on the tool’s protective

insulation. In this case, use of a stationary dust extrac-

tion system and frequent cleaning of the ventilation

slots are recommended.

Never operate the power tool when the air vents are

blocked. Regularly clean the power tool’s air vents care-

fully with a dry brush. Do not permit foreign objects to

enter the interior of the tool. The motor’s fan will draw

dust into the casing and an excessive accumulation of

conductive dust (e.g. metal, carbon fiber) may cause

electrical hazards. Clean the outside of the power tool at

regular intervals with a slightly damp cloth. Do not use

a spray, steam pressure cleaning equipment or running

water for cleaning. This may negatively affect the elec-

trical safety of the tool. Always keep the grip surfaces

of the tool free from oil and grease. Do not use cleaning

agents which contain silicone.

NOTE

Frequent work on conductive materials (e.g. metal, car-

bon fiber) may make shorter maintenance intervals ne-

cessary. Take your individual work place risk assessment

into account.

8.2 Care of the Li‑ion battery

NOTE

Battery performance drops at low temperatures.

NOTE

Store the battery in a cool and dry place.

In order to achieve maximum battery life, stop using the

battery as soon as a significant drop in battery perform-

ance is noticed.

NOTE

- If use continues, further battery discharge will be

stopped automatically before the battery cells suffer

damage.

- Charge the batteries using the specified and approved

Hilti battery chargers for Li‑ion batteries.

8.3 Checking the power tool after care and

maintenance

After carrying out care and maintenance work on the

power tool, check that all protective and safety devices

are fitted and that they function faultlessly.

9 Troubleshooting

Fault Possible cause Remedy

The battery runs down more

quickly than usual. Very low ambient temperature. Allow the battery to warm up slowly

to room temperature.

The battery doesn’t engage with

an audible click. The retaining lugs on the battery are

dirty. Clean the retaining lugs and push the

battery in until it engages. Contact

Hilti Service if the problem persists.

LED 1 blinks. The battery is discharged. Charge the battery.

The tool is overloaded (application

limits exceeded). Use the right power tool for the job

(don’t use a low-powered tool for

heavy work).

The power tool doesn’t run and

1LEDblinks. The battery is discharged. Change the battery and charge the

empty battery.

The battery is too hot or too cold. Bring the battery to the recommen-

ded working temperature.

The tool doesn’t work and all 4

LEDs blink. The power tool has been overloaded

briefly. Release the switch and press it again.

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11

Fault Possible cause Remedy

The tool doesn’t work and all 4

LEDs blink. The overheating prevention cut-out

has been activated. Allow the power tool to cool down.

The power tool or the battery

becomes very warm. Electrical fault. Switch the power tool off immedi-

ately, remove the battery from the

tool and allow it to cool down while

keeping an eye on it, contact Hilti

Service.

The power tool has been overloaded

(application limits exceeded). Use the right power tool for the job

(don’t use a low-powered tool for

heavy work).

The power tool doesn’t achieve

full power. A battery with inadequate capacity

was used. Use a battery with a capacity of at

least 2.6 Ah.

No braking function. The battery is discharged. Charge the battery.

The tool is overloaded (application

limits exceeded). Switch the power tool off and on

again.

10 Disposal

CAUTION

Improper disposal of the equipment may have serious consequences: the burning of plastic components generates

toxic fumes which may present a health hazard. Batteries may explode if damaged or exposed to very high

temperatures, causing poisoning, burns, acid burns or environmental pollution. Careless disposal may permit

unauthorized and improper use of the equipment. This may result in serious personal injury, injury to third parties and

pollution of the environment.

CAUTION

Dispose of defective batteries right away. Keep them out of reach of children. Do not disassemble or incinerate the

batteries.

CAUTION

Batteries that have reached the end of their life must be disposed of in accordance with national regulations or returned

to Hilti.

Most of the materials from which Hilti power tools or appliances are manufactured can be recycled. The materials

must be correctly separated before they can be recycled. In many countries, Hilti has already made arrangements for

taking back your old power tools or appliances for recycling. Please ask your Hilti customer service department or

Hilti representative for further information.

For EC countries only

Disposal of electric tools together with household waste is not permissible.

In observance of the European Directive on waste electrical and electronic equipment and its imple-

mentation in accordance with national law, electrical appliances that have reached the end of their life

must be collected separately and returned to an environmentally compatible recycling facility.

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12

11 Manufacturer’s warranty - tools

Please contact your local Hilti representative if you have

questions about the warranty conditions.

12 EC declaration of conformity (original)

Designation: Angle grinder

Type: AG 125-A22

Generation: 01

Year of design: 2011

We declare, on our sole responsibility, that this product

complies with the following directives and standards:

2006/42/EC, 2004/108/EC, 2006/66/EC, 2011/65/EU,

EN 60745‑1, EN 60745‑2‑3, EN ISO 12100.

Hilti Corporation, Feldkircherstrasse 100,

FL‑9494 Schaan

Paolo Luccini Jan Doongaji

Head of BA Quality and Process Man-

agement

Executive Vice President

Business Area Electric Tools & Ac-

cessories

Business Unit Power

Tools & Accessories

01/2012 01/2012

Technical documentation filed at:

Hilti Entwicklungsgesellschaft mbH

Zulassung Elektrowerkzeuge

Hiltistrasse 6

86916 Kaufering

Deutschland

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13

ORIGINAL BRUGSANVISNING

AG 125-A22 Vinkelsliber

Læs brugsanvisningen grundigt igennem før

ibrugtagning.

Opbevar altid brugsanvisningen sammen med

maskinen.

Sørg for, at brugsanvisningen altid følger med

ved overdragelse af maskinen til andre.

Indholdsfortegnelse side

1 Generelle anvisninger 14

2 Sikkerhedsanvisninger 15

3 Beskrivelse 19

4 Forbrugsstoffer 20

5 Tekniske specifikationer 21

6Ibrugtagning 22

7 Betjening 23

8 Rengøring og vedligeholdelse 24

9 Fejlsøgning 24

10 Bortskaffelse 25

11 Producentgaranti - Produkter 25

12 EF-overensstemmelseserklæring (original) 26

1Tallene henviser til billeder. Billederne finder du i til-

lægget til brugsanvisningen.

I denne brugsanvisning henviser ordet »maskine« altid til

vinkelsliberen AG 125‑A22.

Betjeningselementer og maskinens komponenter 1

@Frigøringsknap, afskærmning

;Spindellåseknap

=Ventilationsåbninger

%Frigøringstaster med ekstrafunktion til aktivering af

ladetilstandsvisning

&Batteri

(Startspærre

)Afbryder

+Vibrationsdæmpende sidegreb

§Spindel

/Beskyttelsesafskærmning

:Spændeflange med O-ring

·Skæreskive / Skrubbeskive

$Spændemøtrik

£Hurtigspændemøtrik "Kwik lock" (ekstratilbehør)

|Spændenøgle

1 Generelle anvisninger

1.1 Signalord og deres betydning

FARE

Står ved en umiddelbart truende fare, der kan medføre

alvorlige kvæstelser eller døden.

ADVARSEL

Advarer om en potentielt farlig situation, der kan forårsage

alvorlige personskader eller døden.

FORSIGTIG

Advarer om en potentielt farlig situation, der kan forårsage

lettere personskader eller materielle skader.

BEMÆRK

Står ved anvisninger om brug og andre nyttige oplysnin-

ger.

1.2 Forklaring af piktogrammer og yderligere

anvisninger

Advarselssymboler

Generel fare

Påbudssymboler

Brug beskyt-

telsesbriller Læs brugs-

anvisningen

før brug

Symboler

Nominelt

omdrejnings-

tal

Omdrejnin-

ger pr.

minut

Omdrejnin-

ger pr.

minut

Diameter

Placering af identifikationsoplysninger på maskinen

Typebetegnelse og serienummer fremgår af maskinens

mærkeplade. Skriv disse oplysninger i brugsanvisningen,

og henvis til disse, når du henvender dig til vores kunde-

service eller værksted.

Type:

da

14

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