Hilti SIW 4R-22 Manuel utilisateur

SIW 4R-22 English 1

Français 17

Español 35

Português 54

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SIW 4R-22

en Original operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . 1

fr Notice d'utilisation originale . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

es Manual de instrucciones original . . . . . . . . . . . . . . . . . . . . . . . 35

pt Manual de instruções original . . . . . . . . . . . . . . . . . . . . . . . . . . 54

*2374192* 2374192 English 1

Original operating instructions

1 Information about the operating instructions

1.1 About these operating instructions

• Read these operating instructions before the product is used or operated

for the first time. This is a prerequisite for safe, trouble-free handling and

use of the product.

• Observe the safety instructions and warnings in these operating instruc-

tions and on the product.

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

that the product is accompanied by these operating instructions only,

when the product is given to other persons.

1.2 Explanation of symbols

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

personal injury or damage to the equipment or other property.

1.2.2 Symbols in the operating instructions

The following symbols are used in these operating instructions:

Comply with the operating instructions

Instructions for use and other useful information

Dealing with recyclable materials

Do not dispose of electric equipment and batteries as household

waste

Hilti Liion battery

2 English 2374192 *2374192*

Hilti charger

1.2.3 Symbols in illustrations

The following symbols are used in illustrations:

These numbers refer to the illustrations 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 illustration and

refer to the numbers used in the key in the product overview sec-

tion.

These characters are intended to specifically draw your attention to

certain points when handling the product.

1.3 Product-dependent symbols

1.3.1 General symbols

Symbols used in relation to the product.

The product supports near-field communication (NFC) technology

compatible with iOS and Android platforms.

Li-ion battery

Never use the battery as a striking tool.

Do not drop the battery. Never use a battery that has suffered an

impact or is damaged in any other way.

Hilti Li-ion battery type series used. Observe the information given in

the section headed Intended use.

If applied on the product, the product has been certified by this cer-

tification body for the US and Canadian markets according to the

applicable standards.

1.3.2 "Must do" symbols

Obligation symbols indicate "must do" actions.

Rated speed under no load

Direct current (DC)

Revolutions per minute

Forward / reverse

1.4 Product information

products are designed for professional users and only trained,

authorized personnel are permitted to operate, service and maintain the

*2374192* 2374192 English 3

products. This personnel must be specifically informed about the possible

hazards. The product and its ancillary equipment can present hazards if

used incorrectly by untrained personnel or if used not in accordance with

the intended use.

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

▶Write down the serial number in the table below. You will be required to

state the product details when contacting Hilti Service or your local Hilti

organization to inquire about the product.

Product information

Impact wrench SIW 4R-22

Generation 01

Serial no.

2 Safety

2.1 General power tool safety warnings

WARNING Read all safety warnings, instructions, 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.

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.

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.

▶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

4 English 2374192 *2374192*

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 a 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 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.

▶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 and clothing 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.

▶Do not let familiarity gained from frequent use of tools allow you

to become complacent and ignore tool safety principles. A careless

action can cause severe injury within a fraction of a second.

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.

*2374192* 2374192 English 5

▶Disconnect the plug from the power source and/or remove the

battery pack, if detachable, 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 and accessories. 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.

▶Keep handles and grasping surfaces dry, clean and free from oil and

grease. Slippery handles and grasping surfaces do not allow for safe

handling and control of the tool in unexpected situations.

Battery tool use and care

▶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.

▶Use power tools only with specifically designated battery packs. Use

of any other battery packs may create a risk of injury and fire.

▶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.

▶Under abusive conditions, liquid may be ejected from the battery;

avoid contact. If contact accidentally occurs, flush with water. If

liquid contacts eyes, additionally seek medical help. Liquid ejected

from the battery may cause irritation or burns.

▶Do not use a battery pack or tool that is damaged or modified.

Damaged or modified batteries may exhibit unpredictable behaviour

resulting in fire, explosion or risk of injury.

▶Do not expose a battery pack or tool to fire or excessive temperature.

Exposure to fire or temperature above 130° C (265 °F) may cause

explosion.

6 English 2374192 *2374192*

▶Follow all charging instructions and do not charge the battery pack

or tool outside the temperature range specified in the instructions.

Charging improperly or at temperatures outside the specified range may

damage the battery and increase the risk of fire.

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.

▶Never service damaged battery packs. Service of battery packs should

only be performed by the manufacturer or authorized service providers.

2.2 Safety warnings for screwdrivers and impact wrenches

▶Hold the power tool by insulated gripping surfaces, when performing

an operation where the fastener may contact hidden wiring. Fasten-

ers contacting a "live" wire may make exposed metal parts of the power

tool "live" and could give the operator an electric shock.

2.3 Additional safety instructions

▶Use the product and accessories only when they are in perfect working

order.

▶Never tamper with or modify the product or accessories in any way.

▶Before beginning work, check the working area for concealed electric

cables or gas and water pipes. External metal parts of the product could

give you an electric shock or cause an explosion if you accidentally

damage an electric cable or a gas or water pipe.

▶Keep the air vents clear at all times. Risk of burn injuries due to blocked

air vents!

▶Avoid touching rotating parts – risk of injury!

▶Wear eye protection, a hard hat and ear protection while the product is

in use.

▶Wear protective gloves when changing the accessory tool. Touching the

accessory tool can result in cuts and burns.

▶Wear eye protection. Flying fragments present a risk of injury to the body

and eyes.

*2374192* 2374192 English 7

▶Dust produced by grinding, sanding, cutting and drilling can contain

dangerous chemicals. Some examples are: lead or lead-based paints;

brick, concrete and other masonry products, natural stone and other

products containing silicates; certain types of wood, such as oak,

beech and chemically treated wood; asbestos or materials that contain

asbestos. Determine the exposure of the operator and bystanders

by means of the hazard classification of the materials to be worked.

Implement the necessary measures to restrict exposure to a safe level,

for example by the use of a dust collection system or by the wearing

of suitable respiratory protection. The general measures for reducing

exposure include:

▶working in an area that is well ventilated,

▶avoidance of prolonged contact with dust,

▶directing dust away from the face and body,

▶wearing protective clothing and washing exposed areas of the skin

with water and soap.

▶Take frequent breaks and do physical exercises to improve the blood

circulation in your fingers. High vibration during long periods of work can

lead to disorders of the blood vessels and nervous system in the fingers,

hands and wrists.

▶Do not look directly into the light source (LED) of the product and do not

aim the beam at other persons’ faces. Risk of dazzling or eye damage.

▶Switch the product on only after you have brought it to the working

position.

▶Wait until the product has come to a complete stop before you lay it

down.

▶Risk of injury by falling tools and/or accessories. Before starting work,

check that the battery and installed accessories are secure.

▶Do not attach a belt hook to this product.

2.4 Careful handling and use of batteries

▶Comply with the following safety instructions for the safe handling

and use of Li-ion batteries. Failure to comply can lead to skin irritation,

severe corrosive injury, chemical burns, fire and/or explosion.

▶Use only batteries that are in perfect working order.

▶Treat batteries with care in order to avoid damage and prevent leakage

of fluids that are extremely harmful to health!

▶Do not under any circumstances modify or tamper with batteries!

▶Do not disassemble, crush or incinerate batteries and do not subject

them to temperatures over 80 °C (176 °F).

▶Never use or charge a battery that has suffered an impact or been

damaged in any other way. Check your batteries regularly for signs of

damage.

▶Never use recycled or repaired batteries.

8 English 2374192 *2374192*

▶Never use the battery or a battery-operated power tool as a striking tool.

▶Never expose batteries to the direct rays of the sun, elevated tempera-

ture, sparking, or open flame. This can lead to explosions.

▶Do not touch the battery poles with your fingers, tools, jewelry, or other

electrically conductive objects. This can damage the battery and also

cause material damage and personal injury.

▶Keep batteries away from rain, moisture and liquids. Penetrating moisture

can cause short circuits, electric shock, burns, fire and explosions.

▶Use only chargers and power tools approved for the specific battery

type. Read and follow the relevant operating instructions.

▶Do not use or store the battery in explosive environments.

▶If the battery is too hot to touch, it may be defective. Put the battery

in a place where it is clearly visible and where there is no risk of fire,

at an adequate distance from flammable materials. Allow the battery

to cool down. If it is still too hot to touch after an hour, the battery is

faulty. Consult Hilti Service or read the document entitled "Instructions

on safety and use for Hilti Li-ion batteries".

Observe the special guidelines applicable to the transport, storage

and use of lithium-ion batteries. → page 15

Read the instructions on safety and use of Hilti Li-ion batteries

that you can access by scanning the QR code at the end of these

operating instructions.

3 Description

3.1 Product overview 1

@Tool holder

;Screw

=Forward/reverse switch with

switch-on interlock

%Battery

&Installation slot for acces-

sories

(Square drive spindle

)Work-area light (LED)

+Air vents

§Control switch with electronic

speed control

/Mode indicator

:Mode selector

∙Battery release button

$Battery status indicator

3.2 Intended use

The product described is a hand-held cordless impact wrench with square

drive. It is designed for driving and removing screws and for tightening and

releasing nuts and bolts in wood, metal, masonry and concrete. It is shaped

specifically so that it can be used in places that are difficult to reach.

• For this product, use only Hilti Nuron lithium-ion batteries of the B 22

series. For optimum performance, Hilti recommends the batteries stated

in the table at the end of these operating instructions for this product.

*2374192* 2374192 English 9

• For these batteries, use only Hilti chargers of the type series stated in

the table at the end of these operating instructions.

3.3 Items supplied

Impact 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

3.4 Status indicators of the Liion battery

Hilti Nuron Li-ion batteries can indicate state of charge, fault messages and

the battery's state of health.

3.4.1 Indicators for state of charge and fault messages

WARNING

Risk of injury by a falling battery!

▶If the release button is pressed with a battery inserted in the product,

subsequently check that the battery is correctly re-engaged and secure.

Short-press the release button of the battery to get whichever of the following

status indications is applicable at the time.

State of charge and, if applicable, faults are indicated constantly as long as

the connected product is switched on.

Status Meaning

Four (4) LEDs show constantly

green

State of charge: 100 % to 71 %

Three (3) LEDs show constantly

green

State of charge: 70 % to 51 %

Two (2) LEDs show constantly

green

State of charge: 50 % to 26 %

One (1) LED shows constantly

green

State of charge: 25 % to 10 %

One (1) LED slow-flashes green State of charge: < 10 %

One (1) LED quick-flashes green The Li-ion battery is completely

discharged. Recharge the battery.

If the LED again starts

quick-flashing after the battery has

been charged, consult Hilti Service.

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Status Meaning

One (1) LED quick-flashes yellow The Li-ion battery or the product in

which it is inserted is overloaded,

too hot or too cold, or experiencing

some other fault.

Bring the product and the battery

to the recommended working tem-

perature and do not overload the

product when it is in use.

If the message persists, consult

Hilti Service.

One (1) LED shows yellow The Li-ion battery and the product

in which it is inserted are not com-

patible. Consult Hilti Service.

One (1) LED quick-flashes red The Li-ion battery is locked and

cannot be used. Consult Hilti Ser-

vice.

3.4.2 Indicators showing the battery's state of health

To check the battery's state of health, press the release button and hold it

down for longer than three seconds. The system does not detect a potential

malfunction of the battery due to misuse, for example battery dropped or

pierced, external heat damage, etc.

Status Meaning

All LEDs show in sequence, fol-

lowed by one (1) LED showing con-

stantly green.

The battery can remain in use.

All LEDs show in sequence, fol-

lowed by one (1) LED quick-flashing

yellow.

The check to ascertain the battery's

state of health did not complete.

Repeat the procedure, or consult

Hilti Service.

All LEDs show in sequence, fol-

lowed by one (1) LED showing con-

stantly red.

If a connected product can still be

used, the remaining battery capac-

ity is below 50 %.

If a connected product can no

longer be used, the battery has

reached the end of its useful life

and has to be replaced. Consult

Hilti Service.

*2374192* 2374192 English 11

4 Technical data

4.1 Technical data

Rated voltage 21.6 V

Weight without battery 1.2 kg

(2.6 lb)

Tool holder Square drive

with half ball

or 3/8″ square

drive with lock-

ing ring

Speed adjustment 2 settings

Rated speed under no load Setting I 0 /min …

1,600 /min

Setting II 0 /min …

2,250 /min

Impact speed ≤ 3,800 bpm

Large standard bolts M6  M10

Large high-strength bolts M6  M8

Storage temperature −20 ℃ … 60 ℃

(−4 ℉ … 140 ℉)

Ambient temperature for operation −17 ℃ … 60 ℃

(1 ℉ … 140 ℉)

4.2 Battery

Battery operating voltage 21.6 V

Weight, battery See the end of these

operating instructions

Ambient temperature for operation −17 ℃ … 60 ℃

(1 ℉ … 140 ℉)

Storage temperature −20 ℃ … 40 ℃

(−4 ℉ … 104 ℉)

Battery charging starting temperature −10 ℃ … 45 ℃

(14 ℉ … 113 ℉)

12 English 2374192 *2374192*

5 Preparations at the workplace

WARNING

Risk of injury by inadvertent starting!

▶Before inserting the battery, make sure that the product is switched off.

▶Remove the battery before making any adjustments to the power tool or

before changing accessories.

Observe the safety instructions and warnings in this documentation and on

the product.

5.1 Charging the battery

1. Before charging the battery, read the operating instructions for the

charger.

2. Make sure that the contacts on the battery and the contacts on the

charger are clean and dry.

3. Use an approved charger to charge the battery. → page 8

5.2 Inserting the battery

WARNING

Risk of injury by short circuit or falling battery!

▶Before inserting the battery, make sure that the contacts on the battery

and the contacts on the product are free of foreign matter.

▶Make sure that the battery always engages correctly.

1. Charge the battery fully before using it for the first time.

2. Push the battery into the product until it engages with an audible click.

3. Check that the battery is seated securely.

5.3 Removing the battery

1. Press the battery release button.

2. Remove the battery from the product.

5.4 Changing the accessory tool 2

CAUTION

Risk of injury by the accessory tool! The accessory tool might be hot or

have sharp edges.

▶Wear protective gloves when changing the accessory tool.

1. Check that the connection end of the accessory tool is clean. Clean the

connection end if necessary.

2. To insert the accessory tool push it into the tool holder as far as it will

go, until it engages with an audible click. Check that the accessory tool

is held securely.

3. To remove the accessory tool, pull the accessory tool off the tool holder.

*2374192* 2374192 English 13

5.5 Fall arrest

WARNING

Risk of injury by falling tool and/or accessory!

▶Use only the Hilti tool tether recommended for your product.

▶Prior to each use, always check the attachment point of the tool tether

for possible damage.

▶Do not secure a tool tether to the belt hook. Do not use a belt hook to lift

the product.

Comply with the national regulations for working at heights.

As drop arrester for this product, use only a combination of the Hilti retaining

strap and the Hilti tool tether #2261970.

▶Secure the retaining strap to the installation openings for accessories.

Check that it holds securely.

▶Secure one carabiner of the tool tether to the retaining strap and secure

the second carabiner to a load-bearing structure. Check that both

carabiners hold securely.

Comply with the operating instructions of the Hilti retaining strap

and those of the Hilti tool tether.

5.6 Turning tool holder 3

For better accessibility in tight spaces, you can set the tool holder to

different angles.

1. Slacken the screw at the tool holder.

2. Remove the tool holder and turn it to the desired angle.

3. Re-install the tool holder on the product.

Make sure that the recesses and the grooves are aligned.

4. Re-tighten the screw to secure the tool holder.

6 Operation

Observe the safety instructions and warnings in this documentation and on

the product.

6.1 Selecting mode 4

▶Repeatedly press the mode selector until the mode indicator shows the

speed stage you want to use.

14 English 2374192 *2374192*

6.2 Setting forward or reverse rotation

▶Set the forward/reverse switch to the desired direction of rotation.

▶The control switch is locked when the forward/reverse switch is in the

middle position (switch-on interlock). An interlock prevents switching

while the motor is running.

6.3 Switching on and off

1. Press the control switch.

▶The product starts.

• Speed can be controlled steplessly by varying how far the control

switch is pressed in.

• In sustained operation, the product switches itself off automati-

cally after 5 minutes. Pressing the control switch again restarts

the product.

2. Release the control switch.

▶The product switches off.

7 Care and maintenance

WARNING

Risk of injury with battery inserted !

▶Always remove the battery before carrying out care and maintenance

tasks!

Care of the product

• Carefully remove stubborn dirt.

• Carefully clean the air vents, if present, with a dry, soft brush.

• Use only a slightly damp cloth to clean the housing. Do not use cleaning

agents containing silicone as these can attack the plastic parts.

• Use a dry, clean cloth to clean the contacts of the product.

Care of the Liion batteries

• Never use a battery with clogged air vents. Clean the air vents carefully

using a dry, soft brush.

• Avoid unnecessary exposure of the battery to dust and dirt. Never

expose the battery to high levels of moisture (e.g. by being dipped in

water or left in the rain).

If a battery has been soaked by moisture, treat it as a damaged battery.

Isolate it in a non-flammable container and consult Hilti Service.

*2374192* 2374192 English 15

• Keep the battery free of extraneous oil and grease. Do not permit dust

or dirt to accumulate unnecessarily on the battery. Clean the battery

with a dry, soft brush or a clean, dry cloth. Do not use cleaning agents

containing silicone as these can attack the plastic parts.

Do not touch the contacts of the battery and do not remove the factory-

applied grease from the contacts.

• Use only a slightly damp cloth to clean the housing. Do not use cleaning

agents containing silicone as these can attack the plastic parts.

Maintenance

• Check all visible parts and controls for signs of damage at regular

intervals and make sure that they all function correctly.

• Do not use the product if signs of damage are found or if parts

malfunction. Immediately have the product repaired by Hilti Service.

• After cleaning and maintenance, install all guards and protective devices

and check that they are in full working order.

To help ensure safe and reliable operation, use only genuine Hilti spare

parts and consumables. Spare parts, consumables and accessories

approved by Hilti for use with your product can be found at your

Hilti Store or online at: www.hilti.group

8 Transport and storage of cordless tools and batteries

Transport

CAUTION

Accidental starting during transport !

▶Always transport your products with the batteries removed!

▶Remove the battery/batteries.

▶Never transport batteries loose and unprotected. During transport,

batteries should be protected from excessive shock and vibration and

isolated from any conductive materials or other batteries that may come

in contact with the terminals and cause a short circuit. Comply with the

locally applicable regulations for transporting batteries.

▶Do not send batteries through the mail. Consult your shipper for

instructions on how to ship undamaged batteries.

▶Prior to each use and before and after prolonged transport, check the

product and the batteries for damage.

Storage

WARNING

Accidental damage caused by defective or leaking batteries !

▶Always store your products with the batteries removed!

▶Store the product and the batteries in a cool and dry place. Comply with

the temperature limits stated in the technical data.

16 English 2374192 *2374192*

▶Do not store batteries on the charger. Always remove the battery from

the charger when the charging operation has completed.

▶Never leave batteries in direct sunlight, on sources of heat, or behind

glass.

▶Store the product and batteries where they cannot be accessed by

children or unauthorized persons.

▶Prior to each use and before and after prolonged storage, check the

product and the batteries for damage.

9 Troubleshooting

If a problem occurs, always observe the status indicator of the battery. See

the section headed Status indicators of the Liion battery.

If the trouble you are experiencing is not listed in this table or you are unable

to rectify the problem by yourself, contact Hilti Service.

Trouble or fault Possible cause Action to be taken

Product does not

work.

The battery is not fully

inserted.

▶Push the battery in

until it engages with

an audible click.

Running speed sud-

denly drops consid-

erably.

Battery is discharged. ▶Change the battery

and charge the empty

battery.

The battery runs

down more quickly

than usual.

Very low ambient tem-

perature.

▶Allow the battery to

warm up slowly to

room temperature.

The battery does

not engage with an

audible click.

The retaining lugs on the

battery are dirty.

▶Clean the retaining

lugs and engage the

battery in the working

position.

Product or battery

gets very hot.

Electrical fault. ▶Switch the product off

immediately, remove

the battery, keep it

under observation,

allow it to cool down

and contact Hilti

Service.

LEDs of the battery

show nothing

Battery defective. ▶Contact Hilti Service.

Product switches off

automatically after 5

minutes.

Safety function ▶Press the control

switch again.

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