Hilti AG 125-15DB Användarmanual

varumärke: Hilti

Modell: AG 125-15DB

Kategori: Vinkelslipar

Typ: Användarmanual

AG 125-15DB

English 1

Dansk 14

Svenska 27

Norsk 40

Suomi 53

Eesti 66

Latviešu 79

Lietuvių 92

Русский 106

Українська 121

Қазақ 136

Türkçe 151

ﻋﺮﺑﻲ 164

日本語 178

한국어 191

繁體中文 203

中文 214

AG 125-15DB

en Originaloperatinginstructions....................................... 1

da Originalbrugsanvisning .......................................... 14

sv Originalbruksanvisning........................................... 27

no Originalbruksanvisning .......................................... 40

fi Alkuperäisetohjeet ............................................. 53

et Originaalkasutusjuhend .......................................... 66

lv Oriģinālālietošanasinstrukcija ..................................... 79

lt Originalinaudojimoinstrukcija...................................... 92

ru Оригинальное руководство по эксплуатации . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

uk Оригінальна інструкція з експлуатації . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

kk Түпнұсқа пайдалану бойынша нұсқаулық . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

tr Orijinalkullanımkılavuzu ......................................... 151

ar ﺩﻟﻴﻞﺍﻻﺳﺘﻌﻤﺎﻝﺍﻷﺻﻠﻲ .......................................... 164

ja オリジナル取扱説明書 ............................................ 178

ko 오리지널사용설명서............................................. 191

zh 原始操作說明.................................................. 203

cn 原版操作说明.................................................. 214

*2143516* 2143516 English 1

1 Information about the documentation

1.1 About this documentation

• Read this documentation before initial operation or use. This is a prerequisite for safe, trouble-free

handling and use of the product.

• Observe the safety instructions and warnings in this documentation and on the product.

• Always keep the operating instructions with the product and make sure that the operating instructions

are with the product when it is given to other persons.

1.2 Explanation of symbols used

1.2.1 Warnings

Warnings alert persons to hazards that occur when handling or using the product. The following signal words

are used:

DANGER

DANGER !

▶Draws attention to imminent danger that will lead to serious personal injury or fatality.

WARNING

WARNING !

▶Draws attention to a potential threat of danger that can lead to serious injury or fatality.

CAUTION

CAUTION !

▶Draws attention to a potentially dangerous situation that could lead to slight personal injury or damage

to the equipment or other property.

1.2.2 Symbols in the documentation

The following symbols are used in this document:

Read the operating instructions before use.

Instructions for use and other useful information

Dealing with recyclable materials

Do not dispose of electric equipment and batteries as household waste

1.2.3 Symbols in the illustrations

The following symbols are used in illustrations:

These numbers refer to the corresponding illustrations found at the beginning of these operating

instructions

The numbering reflects the sequence of operations shown in the illustrations and may deviate

from the steps described in the text

Item reference numbers are used in the overview illustrations and refer to the numbers used in

the product overview section

This symbol is intended to draw special attention to certain points when handling the product.

Wireless data transfer

2 English 2143516 *2143516*

1.3 Product-dependent symbols

1.3.1 Symbols on the product

The following symbols are used on the product:

Wear eye protection

Revolutions per minute

Rated speed

Diameter

Protection class II (double-insulated)

1.4 Product information

Hilti products are designed for professional use and may be operated, serviced and maintained only by

trained, authorized personnel. This personnel must be informed of any particular hazards that may be

encountered. The product described and its ancillary equipment may present hazards when used incorrectly

by untrained personnel or when used not as directed.

The type designation and serial number are printed on the rating plate.

▶Write down the serial number in the table below. Always quote this information when you contact a Hilti

representative or Hilti Service to enquire about the product.

Product information

Angle grinder AG 125-15DB

Generation 04

Serial no.

1.5 Declaration of conformity

We declare, on our sole responsibility, that the product described here complies with the applicable directives

and standards. A copy of the declaration of conformity can be found at the end of this documentation.

The technical documentation is filed and stored here:

Hilti Entwicklungsgesellschaft mbH | Tool Certification | Hiltistrasse 6 | 86916 Kaufering, Germany

2 Safety

2.1 General power tool safety warnings

WARNING

Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in

electric shock, fire and/or serious injury.

Save all warnings and instructions for future reference.

Work area safety

▶Keep work area clean and well lit. Cluttered or dark areas invite accidents.

▶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.

▶Keep children and bystanders away while operating a power tool. Distractions can cause you to lose

control.

Electrical safety

▶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.

▶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.

*2143516* 2143516 English 3

▶Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the

risk of electric shock.

▶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.

▶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.

▶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.

Personal safety

▶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.

▶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.

▶Prevent unintentional starting. Ensure the switch is in the off‐position before connecting to power

source, 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.

▶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.

▶Do not overreach. Keep proper footing and balance at all times. This enables better control of the

power tool in unexpected situations.

▶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.

▶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.

Power tool use and care

▶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.

▶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.

▶Disconnect the plug from the power source 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.

▶Store idle power tools out of the reach of children 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.

▶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.

▶Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are

less likely to bind and are easier to control.

▶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

operations different from those intended could result in a hazardous situation.

Service

▶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:

▶This power tool is intended to function as a grinder, sander or cut-off tool. Read all safety

warnings, instructions, illustrations and specifications provided with this power tool. Failure to

follow all instructions listed below may result in electric shock, fire and/or serious injury.

▶Operations such as 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.

4 English 2143516 *2143516*

▶Do not use accessories which are not specifically 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 fly 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.

▶Threaded mounting of accessories must match the grinder spindle thread. For accessories

mounted by flanges, the arbour hole of the accessory must fit the locating diameter of the flange.

Accessories that do not match the mounting hardware 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 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.

▶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 operations. The dust mask or respirator must be capable of

filtrating particles generated by your operation. Prolonged exposure to high intensity noise may cause

hearing 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 fly away and

cause injury beyond immediate area of operation.

▶Hold the 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 could give the operator an electric

shock.

▶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.

▶Never lay the power tool down until the accessory 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 flammable 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.

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 firm grip on the power tool and position 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 accessory. Accessory may kickback over your hand.

▶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.

*2143516* 2143516 English 5

▶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 frequent

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 specific 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 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.

▶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 specific 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 possible 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 workpiece. 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 workpiece.

▶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

protruding wheel may cut gas or water pipes, electrical wiring or objects that can cause kickback.

Safety warnings specific 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.

2.3 Additional safety instructions

Personal safety

▶Use the product only when it is in technically faultless condition.

▶Never tamper with or modify the tool in any way.

▶Always hold the power tool with both hands on the handles provided. Keep the handles clean and dry.

▶Avoid touching rotating parts – risk of injury!

▶Wear suitable protective glasses, a hard hat, ear protection, protective gloves and light respiratory

protection while using the power tool.

▶Before beginning the work, check the hazard classification of the dust that will be produced. Use an

industrial vacuum cleaner with an officially approved protection class in compliance with the locally

applicable dust protection regulations. Dust from materials such as lead-based paint, certain types of

wood and concrete/masonry/stone containing quartz, minerals or metal may be harmful to health.

6 English 2143516 *2143516*

▶Make sure that the workplace is well ventilated and, where necessary, wear a respirator appropriate for

the type of dust generated. Contact with or inhalation of the dust may cause allergic reactions and/or

respiratory or other diseases among operators 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 may be handled only by specialists.

▶Take breaks between working and do physical exercises to improve the blood circulation in your fingers.

Exposure to vibration during long periods of work can lead to disorders of the blood vessels and nervous

system in the fingers, hands and wrists.

Electrical safety

▶Before beginning work, check the working area for concealed electric cables or gas and water pipes.

External metal parts of the power tool may give you an electric shock if you damage an electric cable

accidentally.

▶Do not touch the supply cord or extension cord if it is damaged while working. Disconnect the mains

plug from the power outlet. Check the tool’s supply cord at regular intervals and have it replaced by Hilti

Service if damage is found. Check extension cords at regular intervals and replace them if found to be

damaged.

Using and handling power tools with care

▶Do not use cutting discs for grinding.

▶Remove the clamping flange from the arbor before fitting a threaded accessory tool.

▶Tighten the accessory tool and flange securely. If the accessory tool and flange are not tightened

securely, the accessory tool may work loose from the arbor due to the braking effect of the motor after

switching off.

▶Comply with the manufacturer's instructions for handling and storing grinding discs.

3 Description

3.1 Overview of the product 1

@Spindle lockbutton

;Air vents

=Vibration-absorbing side handle

%Wrench

&Clamping nut

(Cutting disc / grinding disc

)Clamping flange with O-ring

+Guard

§On/off switch

/Switch-on interlock release button

:Spindle

∙Quick locking system

$Guard release button

£Threaded bushing for handle

*2143516* 2143516 English 7

3.2 Intended use

The product described is a hand-held electric angle grinder. It is designed for cutting, grinding and sanding

metal and mineral materials without use of water.

The tool may be operated only when connected to a power supply providing a voltage and frequency in

compliance with the information given on its rating plate.

• The power tool may be used for cutting, slitting and grinding mineral materials only when equipped with

the corresponding guard (optional accessory).

• A dust removal hood together with a suitable Hilti vacuum cleaner must be used for working on mineral

materials such as concrete or stone.

3.3 Items supplied

Angle grinder, side handle, standard guard, front cover, clamping flange, clamping nut, wrench, operating

instructions.

Other system products approved for use with this product can be found at your local Hilti Store or at:

www.hilti.group | USA: www.hilti.com

3.4 Integrated brake

This product has an integrated brake. It reduces the time that the accessory tool needs to run down to a

complete stop.

Temperature increase of braked angle grinders!

The integrated brake causes the temperature of the gear head to rise as power and speed increase.

This is not a fault.

It is permissible for the gear housing to reach a temperature 60 °C above ambient temperature. All our

products are below this limit in operation.

3.5 Starting current limiter

The electronic starting current limiter reduces the starting current drawn to prevent the line fuse from tripping.

This prevents abrupt start-up of the product.

3.6 Constant-speed electronics

Electronic speed control keeps running speed almost constant irrespective of whether the power tool is

idling or running under load. Constant running speed helps ensure maximum efficiency.

3.7 Active Torque Control (ATC)

The electronics detect potential stalling of the disc and prevent further rotation of the arbor by switching off

the product.

If the ATC system has been triggered, restart the product. Do this by releasing the on/off switch and then

pressing it again.

If the ATC system fails, the product will run at greatly reduced speed and with greatly reduced torque.

Have the product checked by Hilti Service.

3.8 Restart interlock

The product does not restart by itself when the on/off switch is locked in the ONposition and power is restored

after an interruption in the electric supply. The on/off switch must first be released and then pressed again.

3.9 Temperature-dependent motor protection

The temperature-dependent motor protection system monitors current draw and motor temperature to

prevent the product from overheating.

If the motor is overloaded through application of excessive working pressure, the product’s performance

drops noticeably or it might stall completely. A standstill should be avoided. The product's permissible

overload depends on motor temperature and is not a specific value.

8 English 2143516 *2143516*

3.10 Front cover for the disc guard 2

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

use the standard guard with front cover.

3.11 DG-EX 125/5" dust hood for grinding (accessory) 3

The grinding system is suitable only for occasional use with diamond cup wheels for grinding mineral

materials.

CAUTION Use of this hood for working on metal is prohibited.

3.12 DC-EX 125/5"C dust hood for cutting (accessory) 4

Use the DC-EX 125/5"C dust hood when cutting masonry and concrete.

CAUTION Use of this hood for working on metal is prohibited.

4 Consumables

Use only synthetic-resin-bonded, fiber-reinforced discs with a maximum Ø of 125 mm approved for a

rotational speed of at least 11500 rpm and a peripheral speed of 80 m/s.

The maximum permissible grinding disc thickness is 6.4 mm and the maximum permissible cutting disc

thickness is 3 mm.

ATTENTION! When cutting or slitting with cutting discs, always use the standard guard with additional

front cover.

Discs

Application Designation Material

Abrasive cutting disc Cutting, slitting ACD Metal

Diamond cutting disc Cutting, slitting DC-TP, DC-D (SPX,

SP, P) Mineral

Abrasive grinding disc Rough grinding AGD, AFD, AND Metal

Diamond grinding disc Rough grinding DG-CW (SPX, SP, P) Mineral

Abrasive resin-fiber disc Rough grinding AP-D Metal

Suitability of discs for the equipment used

Item Equipment ACD AGD,

AFD,

AND

DG-CW

(SPX, SP,

DC-TP,

DC-D (SPX,

SP, P)

AP-D

A Guard X X X X X

B Front cover (in combination

with A) X — — X —

C DG-EX 125/5" dust hood for

grinding — — X — —

D DC-EX 125/5"C dust hood for

cutting (in combination with A) — — — X —

E Side handle X X X X X

F DCBG 125 hoop handle

(optional for E) X X X X X

G Clamping nut X X X X —

H Clamping flange X X X X —

I Clamping nut for abrasive

resin-fiber disc (M14x1.5) — — — — X

J Support plate — — — — X

*2143516* 2143516 English 9

5 Technical data

For rated voltage, rated current, frequency and/or input power, refer to the rating plate.

If the product is powered by a generator or transformer, the generator or transformer’s power output must

be at least twice the rated input power shown on the rating plate of the product. The operating voltage of

the transformer or generator must always be within +5 % and -15 % of the rated voltage of the product.

AG 125-15DB

Rated speed 11,500 /min

Maximum disc diameter 125 mm

Thread diameter M14x1.5

Thread length 22 mm

Weight in accordance with EPTA procedure 01 2.7 kg

5.1 Noise information and vibration values in accordance with EN 60745

The sound pressure and vibration values given in these instructions were measured in accordance with a

standardized test and can be used to compare one power tool with another. They can also be used for a

preliminary assessment of exposure. The data given represents the main applications of the power tool.

However, if the power tool is used for different applications, with different accessory tools, or is poorly

maintained, the data can vary. This can 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 can 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: Maintaining the power tool and accessory tools, keeping the hands warm,

organization of work patterns.

Noise emission values

AG 125-15DB

Sound (power) level (LWA)102 dB(A)

Emission sound pressure level (LpA)91 dB(A)

Uncertainty for the sound pressure level (KpA)3 dB(A)

Total vibration

AG 125-15DB

Surface grinding with the vibration-absorbing side handle (ah,AG)4.4 m/s²

Sanding (ah,DS)3.0 m/s²

Uncertainty (K) 1.5 m/s²

6 Before use

CAUTION

Risk of injury. The accessory tool may be hot or have sharp edges.

▶Wear protective gloves when fitting, removing or adjusting the accessory tool or other parts and when

troubleshooting.

6.1 Fitting the side handle

▶Screw the side handle into one of the threaded bushings provided.

6.2 Guard

▶Observe the instructions for fitting the applicable guard.

10 English 2143516 *2143516*

6.2.1 Installing the guard 5

The guard is keyed to ensure that only guards of a type suitable for use with the product can be

installed. The keyed locating lug also prevents the guard from coming into contact with the tool.

1. Fit the guard on to the arbor collar so that the two triangular marks on the guard and on the product are

in alignment.

2. Press the guard on to the drive spindle collar.

3. Press the guard release button and turn the guard until it engages in the desired position.

◁The guard release button jumps back.

6.2.2 Adjusting the guard 6

▶Press the guard release button and then rotate the guard until it engages in the desired position.

6.2.3 Removing the guard

1. Press the guard release button and turn the guard until the triangular marks on the guard and on the

product are in alignment.

2. Lift off the guard.

6.3 Fitting or removing the front cover 7

1. Position the front cover with the closed side on the standard guard and push it on until it engages.

2. To remove it, release the catch for the front cover and then lift the front cover away from the standard

guard.

6.4 Fitting or removing the discs

CAUTION

Risk of injury. The accessory tool may be hot.

▶Wear protective gloves when changing the accessory tool.

Diamond discs must be replaced when their cutting or grinding performance drops significantly. This

generally is the case when the diamond segments reach a height of less than 2 mm (1/16").

Other discs must be replaced when their 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 must be replaced when their expiry date has been reached.

6.4.1 Fitting the grinding disc 8

1. Disconnect the mains plug from the power outlet.

2. Check that the O-ring is in place in the clamping flange and that it is undamaged.

Result

The O-ring is damaged.

There is no O-ring in the clamping flange.

▶Fit a new clamping flange with O-ring.

3. Fit the clamping flange onto the drive spindle.

4. Fit the grinding disc.

5. Screw on the clamping nut corresponding to the type of accessory tool fitted.

6. Press the spindle lockbutton and hold it in this position.

7. Use the pin wrench to tighten the clamping nut securely, then release the spindle lockbutton and remove

the wrench.

6.4.2 Removing the grinding disc

1. Disconnect the mains plug from the power outlet.

CAUTION

Risk of breakage and irreparable damage. If the spindle lockbutton is pressed while the spindle is rotating,

this may cause the accessory tool to work loose or detach from the power tool.

▶Press the spindle lockbutton only when the spindle has stopped rotating.

*2143516* 2143516 English 11

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

3. Release the clamping nut by gripping it with the pin wrench and turning the nut counterclockwise.

4. Release the spindle lockbutton and remove the grinding disc.

6.5 Fitting the abrasive resin-fiber disc 9

1. Disconnect the mains plug from the power outlet.

2. Fit the side handle. → page 9

3. Install the guard. → page 10

4. Fit the support plate and the abrasive resin-fiber disc, screw on the clamping nut and tighten it securely.

5. Press the spindle lockbutton and hold it in this position.

6. Use the pin wrench to tighten the clamping nut securely, then release the spindle lockbutton and remove

the wrench.

7 Types of work

WARNING

A damaged supply cord presents a hazard! Do not touch the supply cord or extension cord if damaged

while working. Disconnect the supply cord plug from the power outlet.

▶Check the appliance’s supply cord at regular intervals and have it replaced by a qualified specialist if

found to be damaged.

Check extension cords at regular intervals and replace them if found to be damaged.

7.1 Switching on 10

The on/off switch with built-in safety lock enables the user to check the switch function and prevents

inadvertent starting of the product.

1. Plug the supply cord into the power outlet.

2. Slide the safety lock forward to unlock the on/off switch.

3. Fully depress the on/off switch.

◁The motor runs.

7.2 Grinding

CAUTION

Risk of injury. The accessory tool may suddenly stick or stall.

▶Use the power tool with the side handle (or optional hoop grip) fitted and always hold the power tool

securely with both hands.

7.2.1 Cutting

▶When cutting, apply moderate feed pressure and do not tilt the product or the cutting disc to either side

(hold at approx. 90° to the cutting plane).

For best results when cutting profiles and small-section rectangular tubes, start cutting at the

smallest cross section.

7.2.2 Rough grinding

▶Move the product to and fro while maintaining a 5° to 30° angle of attack and applying moderate pressure.

◁This will avoid overheating and discoloration of the workpiece and help ensure an even surface finish.

7.3 Switching off

▶Release the on/off switch.

◁The safety lock jumps back automatically into the locked position and the motor stops.

12 English 2143516 *2143516*

8 Care and maintenance

WARNING

Danger of electric shock! Carrying out care and maintenance while the supply cord is connected to the

power outlet presents a risk of serious injuries including burns.

▶Always unplug the supply cord before carrying out all care and maintenance tasks.

Care

• Carefully remove stubborn dirt from the tool.

• Clean the air vents carefully with a dry brush.

• Use only a slightly damp cloth to clean the casing. Do not use cleaning agents containing silicone as

they can attack the plastic parts.

Maintenance

WARNING

Danger of electric shock! Improper repairs to electrical components may lead to serious injuries including

burns.

▶Repairs to the electrical section of the tool or appliance may be carried out only by trained electrical

specialists.

• At regular intervals, check all visible parts and the controls for signs of damage and make sure that they

all function correctly.

• Do not operate the power tool if signs of damage are found or if parts malfunction. Have damage repaired

immediately by Hilti Service.

• After cleaning and maintenance, refit all guards or protective devices and check that they function

correctly.

8.1 Checks after care and maintenance work

▶After carrying out care and maintenance, check that all protective and safety devices are fitted and that

they function faultlessly.

9 Transport and storage

• Do not transport electric tools with accessory tools fitted.

• Always unplug the supply cord before storing an electric tool or appliance.

• Store tools and appliances in a dry place where they cannot be accessed by children or unauthorized

persons.

• Check electric tools or appliances for damage after long periods of transport or storage.

10 Troubleshooting

If the trouble you are experiencing is not listed in this table or you are unable to remedy the problem by

yourself, please contact Hilti Service.

10.1 Troubleshooting

Trouble or fault Possible cause Action to be taken

Product does not start. Interruption in the electric supply. ▶Plug in another power tool or

appliance and check whether it

works.

The supply cord or plug is defec-

tive.

▶Have the supply cord and plug

checked by a trained electrical

specialist and replaced if

necessary.

The carbon brushes are worn. ▶Have the power tool checked by

a trained electrical specialist and

the carbon brushes replaced if

necessary.

*2143516* 2143516 English 13

Trouble or fault Possible cause Action to be taken

Product does not work. Product is overloaded. ▶Release the on/off switch and

then press it again. Then allow

the product to run under no load

for approx. 30 seconds.

Product does not develop full

power. The extension cord conductor

cross section (gauge) is inade-

quate.

▶Use an extension cord with

an adequate conductor cross

section.

Elevated temperatures at the

gear housing. Short braking interval. ▶Allow the device to run under no

load until it has cooled down.

11 RoHS (Restriction of Hazardous Substances)

Click on the links to go to the table of hazardous substances: qr.hilti.com/r4522690.

There is a link to the RoHS table, in the form of a QR code, at the end of this document.

12 Disposal

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

materials must be correctly separated before they can be recycled. In many countries, your old tools,

machines or appliances can be returned to Hilti for recycling. Ask Hilti Service or your Hilti representative

for further information.

▶Do not dispose of power tools, electronic equipment or batteries as household waste!

13 Manufacturer’s warranty

▶Please contact your local Hilti representative if you have questions about the warranty conditions.

14 Dansk 2143516 *2143516*

1 Oplysninger vedrørende dokumentationen

1.1 Vedrørende denne dokumentation

• Læs denne dokumentation igennem før ibrugtagning. Det er en forudsætning for sikkert arbejde og

korrekt håndtering.

• Følg sikkerheds- og advarselshenvisningerne i denne dokumentation og på produktet.

• Opbevar altid brugsanvisningen sammen med produktet, og overdrag det kun til andre personer sammen

med denne anvisning.

1.2 Tegnforklaring

1.2.1 Advarsler

Advarsler advarer mod farer ved håndtering af produktet. Følgende signalord anvendes:

FARE

FARE !

▶Betegner en umiddelbart truende fare, der kan medføre alvorlige kvæstelser eller døden.

ADVARSEL

ADVARSEL !

▶Står ved en potentielt truende fare, der kan medføre alvorlige kvæstelser eller døden.

FORSIGTIG

FORSIGTIG !

▶Betegner en potentielt farlig situation, der kan forårsage lettere personskader eller materielle skader.

1.2.2 Symboler i denne dokumentation

Følgende symboler anvendes i denne dokumentation:

Læs brugsanvisningen før brug

Anvisninger for anvendelse og andre nyttige oplysninger

Håndtering af genvindbare materialer

Elektriske maskiner og batterier må ikke bortskaffes som almindeligt husholdningsaffald

1.2.3 Symboler i illustrationer

Følgende symboler anvendes på illustrationer:

Disse tal henviser til de forskellige illustrationer i begyndelsen af brugsanvisningen

Nummereringen udtrykker arbejdstrinnenes rækkefølge på illustrationen og kan afvige fra arbejds-

trinnene i teksten

Positionsnumre anvendes i illustrationen Oversigt og refererer til tallene i symbolforklaringen i

afsnittet Produktoversigt

Dette symbol skal sikre skærpet opmærksomhed ved omgang med produktet.

Trådløs dataoverførsel

1.3 Produktspecifikke symboler

1.3.1 Symboler på produktet

Følgende symboler anvendes på produktet:

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Hilti AG 125-15DB Användarmanual

varumärke: Hilti

Modell: AG 125-15DB

Kategori: Vinkelslipar

Typ: Användarmanual

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