Hilti 3475157 Use and Care Manual
Contents
1. SFC14 A SFC18 A P3B 24 027 Sl 6 6 Belt hook CAUTION Check that the belt hook is fitted securely before beginning work u 25 2 2011 13 27 Uhr Se The belt hook allows the power tool to be attached to a belt worn by the operator The belt hook can also be fitted to the other side of the power tool for use by left handed persons 1 Pull the battery out of the tool 2 Fitthe mounting plate into the guides provided 3 Secure the belt hook with the two screws T Operation CAUTION The tool may get hot during use Wear protective gloves CAUTION When drilling and screwdriving the grip of the tool may be deflected laterally the tool tends to pivot about its own axis CAUTION To avoid injuries caused by the insert tool wear protective gloves when changing insert tools 7 1 Setting forward or reverse rotation EJ NOTE The forward reverse switch is used to select the direction of rotation of the drive spindle An interlock prevents switching while the motor is running The control switch is locked when the forward reverse switch is in the middle position Push the forward reverse switch to the right power tool held in working direction to select forward rotation Push the forward reverse switch to the left power tool held in working direction to select reverse rotation 7 2 Speed selection using the 2 speed gear switch El NOTE The mechanical 2 speed gear switch can be used t2. Sl u 25 2 2011 13 27 Uhr Se Battery B14 1 6 B14 3 3 B18 1 6 B18 2 6 No of cells 4 8 6 12 5 Safety instructions NOTE The safety rules in section 5 1 contain all general safety rules for power tools which in accordance with the applicable standards require to be listed in the operating instructions Accordingly some of the rules listed may not be relevant to this tool 5 1 General power tool safety warnings a WARNING Read all safety warnings and 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 5 1 1 Work area safety a b Keep work area clean and well lit Gluttered or dark areas invite accidents 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 Keep children and bystanders away while oper ating a power tool Distractions can cause you to lose control 5 1 2 Electrical safety a 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 sh
3. Clean off dirt and dust deposits adhering to the insert tools and protect them from corrosion by wiping the insert tools from time to time with an oil soaked rag 8 2 Gare of the power tool CAUTION Keep the power tool especially its grip surfaces clean and free from oil and grease Do not use cleaning agents which contain silicone The outer casing of the power tool is made from impact resistant plastic Sections ofthe grip are made from a synthetic rubber material Never operate the power tool when the ventilation slots are blocked Clean the ventilation slots carefully using a dry brush Do not permit foreign objects to enter the interior of the power tool 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 electrical safety of the power tool 8 3 Care of the Li ion battery Avoid entrance of moisture Charge the battery fully before using it for the first time In order to achieve maximum battery life stop dis charging the battery as soon as a significant drop in performance is noticed NOTE If use of the power tool continues battery discharge is stopped automatically indicated by LED 1 blinking before the battery cells suffer damage Charge the battery with the Hilti charger approved for use with Li ion batteries NOTE A conditioning charge as is required w
4. D Keyless chuck 2 Torque and drilling mode setting ring 3 Control switch with electronic speed control 4 Forward reverse switch 5 2 speed gear selector switch 8 Lamp 7 Grip Release buttons with additional function charge status display activation 8 Charge status and fault display Li ion battery Belt hook optional 1 General information 1 1 Safety notices and their meaning DANGER Draws attention to imminent danger that could lead to serious bodily injury or fatality 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 Obligation signs Wear a hard Wear ear Wear Wear eye protection hat protection protective gloves Wear breathing protection Symbols e z No Read the Volts Direct current Rated speed operating under no load instructions before use Revolutions Drilling Return waste per minute without material for hammering recycling NOTE Draws attention to an instruction or other useful information 1 2 Explanation of the pictograms and other information Warning signs Warning caustic substances General warning Warning electricity Location of identification data on the power tool The type designation can be found on the ty
5. Sl 2 3 Switches Control switch with electronic speed control 2 speed gear selector switch Forward reverse selector switch with transport lock Torque and drilling mode setting ring 2 4 Grips Vibration absorbing grip 2 5 Lubrication Grease lubrication 2 6 The items supplied include toolbox versions 1 Power tool 1 Operating instructions 1 Hilti toolbox 2 7 The items supplied include cardboard box versions 1 Power tool 1 Operating instructions 2 8 Additional items required for operating the tool B 18 1 6 Li ion B 18 2 6 Li ion B 14 1 6 Li ion or B 14 8 3 Li ion battery with C 4 36 C 4 36 ACS or C 4 36 ACS TPS charger 2 9 Li ion battery charge status and overheating indicator LEDs light constantly LEDs blink Charge status C LED 12 34 umm TENUES LED 1 2 3 Po 50 56 lt 75 LED 1 2 ja 25 C 50 LED 1 5 10 6 lt 25 a LED 1 C lt 10 E Battery overheated 2 10 Overload and overheating protection The power tool is equipped with an electronic protection system to prevent overloading and overheating The power tool switches itself off automatically in the event of overloading and overheating After releasing the control switch the power tool may not restart immediately when the switch is pressed again while the power tool is cooling down 3 Insert tools accessories Bit holder S BH 50 Charger for Li ion batteries C 4 36 Charger for Li ion batteries C 4 36 ACS C
6. CAUTION Before fitting the battery check that the power tool is switched off and that the safety lock is engaged forward reverse switch in the middle position Use only the Hilti batteries approved for use with this power tool CAUTION Check that the terminals on the battery and in the power tool are free from foreign objects before inserting the battery in the power tool 1 Push the battery into the power tool from the rear as far as it will go and until it is heard to engage with a double click 2 CAUTION A falling battery may present a risk of injury to yourself or others Check that the battery is seated securely in the power tool 6 4 Removing the battery Fl 1 Press one or both release buttons 2 Pull the battery out of the power tool toward the rear 6 5 Transport and storage of battery packs Pull the battery pack out of the locked position work ing position and move it into the firstlatching position transport position If you disconnect a battery pack from the power tool for transport or storage make sure that the contacts of the battery pack are not short circuited Remove loose metal parts such as screws nails clamps loose screw bits wires or metal swarf from the case toolbox or transport container or prevent these parts from coming into contact with the battery packs Observe national and international transport regula tions when shipping battery packs transportation by road rail sea or air
7. dust to get into your mouth eyes or to remain on your skin may promote absorption of harmful chemicals 5 2 2 Electric tool use and care a 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 b Check that the insert tools used are compatible with the chuck system and that they are secured in the chuck correctly 5 2 3 Battery tool use and care a Ensure the switch is in the off position before inserting the battery pack Inserting the battery pack into a lamp that is switched on may dazzle you b Do not expose batteries to high temperatures or fire This presents a risk of explosion c Do not disassemble squash or incinerate bat teries and do not subject them to temperatures over 80 C A risk of fire explosion or injury through contact with caustic substances may otherwise result Avoid ingress of dampness Dampness may cause a short circuit resulting in a risk of burning injury or fire e Do not use batteries other than those approved for use with the applicable power tool or appli ance Use of other batteries or use of the battery for purposes for which it is not intended presents a risk of fire and explosion f Observe the special instructions applicable to the transport storage and use of Li ion batter ies P 25 2 2011 13 27 Uhr Se Remove the battery before storing or transport i
8. SFC 14 A l m md SFC 18 A ETL listed to US and Canadian safety standards Homologu ETL conforme aux normes de s curit am ricaines et canadiennes Producto homologado seg n normas de seguridad americanas y canadienses Produto homologado de accordo com as normas de seguranca americanas e canadianas NT ERTS ly LISTED SFC 18 A SFC 14 A E 25 2 2011 13 27 Uhr Se w ORIGINAL OPERATING INSTRUCTIONS SFC 14 A SFC 18 A cordless drill driver It is essential that the operating instruc tions are read before the power tool is op erated for the first time Always keep these operating instructions together 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 Description 2 3 Insert tools accessories 4 4 Technical data 4 5 Safety instructions 5 6 Before use 8 7 Operation 9 8 Care and maintenance 10 9 Troubleshooting 11 10 Disposal 12 11 Manufacturer s warranty tools 12 El These numbers refer to the corresponding illustra tions The illustrations can be found on the fold out cover pages Keep these pages open while studying the operating instructions In these operating instructions the designation power tool always refers to the SFC 18 A or SFC 14 A cordless drill driver with battery fitted Parts operating controls and indicators EN
9. accordance with the Hilti Operating Instructions and the technical system is maintained This means that only original Hilti consumables components and spare parts may be used in the tool This warranty provides the free of charge repair or replacement of defective parts only over the entire lifespan of the tool Parts requiring repair or replace ment as a result of normal wear and tear are not covered by this warranty Hilti is not obligated for direct indirect inciden tal or consequential damages losses or expenses in connection with or by reason of the use of or inability to use the tool for any purpose Im plied warranties of merchantability or fitness for a particular purpose are specifically excluded For repair or replacement send the tool or related parts immediately upon discovery of the defect to the address of the local Hilti marketing organization provided This constitutes Hilti s entire obligation with regard to warranty and supersedes all prior or contempo raneous comments and oral or written agreements concerning warranties 12 u ug Hilti Corporation LI 9494 Schaan Tel 423 234 21 11 Fax 423 234 29 65 www hilti com P la an Corp m 2 1110 00 Pos 3 rinted in China Right of technical and programme changes reserved 5 E amp 0 440882 A
10. ating 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 5 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 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 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 away from moving parts Loose clothes jewellery or long hair can be caught in m
11. e forward reverse switch to the middle position or remove the battery from the power tool 2 Open the keyless chuck 3 Pull the insert tool out of the chuck 7 6 Drilling CAUTION 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 1 Turn the torque and operating mode setting ring to the drilling symbol 2 Move the forward reverse switch to the For ward position 2 Remove the bit from the bit holder 3 Open the keyless chuck 4 Remove the bit adapter 7 8 Reading the charge status LED display on Li ion batteries NOTE The charge status can not be indicated while the power tool is in operation LED 1 blinks when the battery is fully discharged or when it is too hot temperature above 80 C The battery must then be inserted in the charger The Li ion battery features a charge status LED dis play The charge status is indicated by the LEDs on the battery during charging please refer to the operating instructions for the charger When the battery is not in use pressing one of the battery release buttons or inserting the battery into the power tool causes the battery charge status to be displayed by the four LEDs for three seconds 8 Care and maintenance CAUTION Before beginning cleaning remove the battery from the power tool in order to prevent unintentional starting 8 1 Care of insert tools
12. harger for Li ion batteries C 4 36 ACS TPS Battery B 18 1 6 Li ion Battery B 18 2 6 Li ion Battery B 14 1 6 Li ion Battery B 14 3 3 Li ion Belt hook optional Keyless chuck clamping range Q 1 5 13 mm Ye 1 Drilling diameter range in wood soft O 1 5 20 mm Ye Drilling diameter range in wood hard O 1 5 12 mm Vs Drilling diameter range in metal 2 1 5 10 mm Ye Ya Wood screws max length 80 mm 3 3 6 mm 14 Screws in plastic anchors max length 120 mm Max 8 mm max 4 5 4 Technical data Right of technical changes reserved Power tool SFC 14 A SFC 18 A Rated voltage DC voltage 14 4 V 21 6 V Weight of power tool 1 5 kg 3 31 Ib 1 7 kg 3 75 Ib Dimensions L x W x H with B 192 mm 7 56 x 80 mm 202 mm 7 95 x 92 mm 14 1 6 or B 18 1 6 3 15 x 225 mm 8 86 3 62 x 234 mm 9 21 st gear speed with B 14 3 3 or 0 500 min 0 600 min 2nd gear speed with B 14 3 3 or 0 1 700 min 0 1 800 min B 18 2 6 Torque with tool set to drilling Max 24 Nm Max 18 Ib ft Max 28 Nm Max 21 Ib ft symbol soft flexible joint Torque range 15 settings 1 5 10 Nm 1 7 Ib ft 1 5 10 Nm 1 7 Ib ft Battery B14 1 6 B14 3 3 B18 1 6 B18 2 6 Rated voltage 216v Capacity 2 6 Ah Energy content 5676 Wh Weight 0 60 kg 1 32 Ib 0 78 kg 1 72 Ib itoring Type of cell Lithium ion Lithium ion Lithium ion Lithium ion SFC14 A SFC18 A P3B 24 027
13. he 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 without delay Keep them out of reach of children Do not attempt to open or dismantle batteries and do not dispose of them by incineration CAUTION Dispose of the batteries in accordance with national regulations or return them 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 11 Manufacturer s warranty tools Hilti warrants that the tool supplied is free of defects Additional claims are excluded unless stringent na in material and workmanship This warranty is valid tional rules prohibit such exclusion In particular so long as the tool is operated and handled correctly cleaned and serviced properly and in
14. ith NiCd or NiMH batteries is not necessary Interruption of the charging procedure has no neg ative effect on battery life 10 O SFC14 A SFC18 A P3B 24 027 Sl Charging can be started at any time with no negative effect on battery life There is no memory effect as with NiCd or NiMH batteries For best results batteries should be stored fully charged in a cool dry place Avoid charging the battery in places subject to high ambient temperatures e g at a window as this has an adverse effect on battery life and increases the rate of self discharge f the battery no longer reaches full charge it may have lost capacity due to aging or overstressing It is possible to continue working with a battery in this condition but it should be replaced in good time P 25 2 2011 13 27 Uhr Se 8 4 Maintenance WARNING Repairs to the electrical section of the power tool may be carried out only by trained electrical spe cialists Check all external parts of the power tool for damage at regular intervals and check that all controls operate faultlessly Do not operate the power tool if parts are damaged or when the controls do not function faultlessly If necessary the power tool should be repaired by Hilti Service 8 5 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 f
15. n a hard hat ear protection protective gloves and breathing protection while the machine is in use 6 Before use 6 1 Battery use and care NOTE Battery performance drops at low temperatures Use a battery only when it has been fully charged This ensures that maximum battery capacity is available Change to the second battery as soon as a drop in performance is noticed Recharge the battery imme diately so that it is ready for reuse Store the battery in a cool dry place Never store the battery where it is exposed to direct sunlight or sources of heat e g on heaters radiators or behind a motor vehicle windscreen Batteries that have reached the end of their life must be disposed of safely and correctly to avoid environmental pollution 6 2 Charging the battery DANGER Use only the Hilti batteries and Hilti chargers listed under Accessories 6 2 1 Charging a new battery for the first time Charge the battery fully before using it for the first time 6 2 2 Charging a previously used battery Ensure that the outer surfaces of the battery are clean and dry before inserting it in the corresponding charger Read the operating instructions for the charger for further information about the charging procedure Li ion batteries are ready for use at any time even when only partly charged Charging progress is in dicated by the LED display see charger operating instructions 6 3 Fitting the battery
16. ng the power tool h Avoid short circuiting the battery Check that the terminals on the battery and in the power tool are free from foreign objects before inserting the battery in the power tool Short circuiting the battery terminals presents a risk of fire explosion and chemical burns i 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 j Ifthe battery gets too hot to touch this may indi cate that it is faulty Place the tool at a location where there is no risk of causing a fire at least 3 meters away from flammable materials where it can be kept under observation and allowed to cool Contact Hilti Service after the battery has been allowed to cool 5 2 4 Electrical safety 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 5 2 5 Work area a Ensure that the workplace is well lit b Ensure that the workplace is well ventilated Exposure to dust at a poorly ventilated workplace may result in damage to the health 5 2 6 Personal protective equipment gt The user and any other persons in the vicinity must wear ANSI Z87 1 approved eye protectio
17. o select the speed range required Speed with fully charged battery SFC 14 A 1st gear 0 500 min 2nd gear 0 1700 min SFC 18 A 1st gear 0 600 min 2nd gear 0 1800 min 7 7 Screwdriving 7 7 1 Fitting the bit holder bit 1 Set the forward reverse switch to the middle position or remove the battery from the power tool 2 Open the quick release chuck 3 Insert the bit adapter in the keyless chuck and then turn the chuck firmly by hand until tight 4 Check that the bit adapter is held securely check by pulling 5 Fit the bit in the bit holder 7 7 2 Screwdriving 1 Select the torque function on the setting ring for torque and drilling 2 Set the forward reverse switch to the desired direction of rotation 7 7 3 Removing the bit bit holder 1 Set the forward reverse switch to the middle position or remove the battery from the power tool 7 3 Switching on off Speed of rotation can be controlled smoothly up to maximum speed by pressing the control switch slowly 7 4 Fitting the drill bit 1 Set the forward reverse switch to the middle position or remove the battery from the power tool 2 Check that the connection end of the drill bit is clean Clean the connection end if necessary 3 Insert the drill bit in the keyless chuck and then turn the chuck firmly by hand until several clicks are heard 4 Checkthat the drill bit is held securely 7 5 Removing the drill bit 1 Set th
18. ock Avoid body contact with earthed or grounded surfaces such as pipes radiators ranges and refrigerators There is anincreased risk of electric shock if your body is earthed or grounded Do not expose power tools to rain or wet con ditions 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 these are connected and properly used Use of dust collection can reduce dust related hazards 5 1 4 Power tool use and care a o e 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 and or the battery pack from the power tool before making any adjustments changing ac cessories or storing power tools Such preven tive safety measures reduce the risk of starting the power tool accidentally 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 Maintain power tools Check for misalignment or binding of moving parts b
19. ol on only after bringing it into position at the workpiece Touching rotating parts especially rotating insert tools may lead to injury 9 Activate the safety lock forward reverse switch in the middle position before storing or trans porting the power tool h The power tool is not intended for use by chil dren by dehilitated persons or those who have received no instruction or training i Children must be instructed not to play with the power tool j WARNING Some dust created by grinding sanding cutting and drilling contains chem icals known to cause cancer birth defects infertility or other reproductive harm or seri ous and permanent respiratory or other injury SFC14 A SFC18 A P3B 24 027 Sl Some examples of these chemicals are lead from lead based paints crystalline silica from bricks concrete and other masonry products and natural stone arsenic and chromium from chemically treated lumber Your risk from these exposures varies depending on how often you do this type of work To reduce exposure to these chemicals the operator and bystanders should work in a well ventilated area work with approved safety equipment such as respiratory protection ap propriate for the type of dust generated and designed to filter out microscopic particles and direct dust away from the face and body Avoid prolonged contact with dust Wear protective clothing and wash exposed areas with soap and water Allowing
20. oving parts g If devices are provided for the connection of dust extraction and collection facilities ensure terminal to another Shorting the battery termi nals together may cause burns or a fire d Under abusive conditions liquid may be ejected from the battery avoid contact If contact ac cidentally occurs flush with water If liquid contacts eyes additionally seek medical help Liquid ejected from the battery may cause irrita tion or burns 5 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 ofthe power tool is maintained 5 2 Additional safety instructions 5 2 1 Personal safety a Hold power tool by insulated gripping surfaces when performing an operation where the fas tener may contact hidden wiring Fasteners con tacting a live wire may make exposed metal parts of the power tool live and could give the operator an electric shock b Wearear protectors Exposure to noise can cause hearing loss Use auxiliary handle s if supplied with the tool Loss of control can cause personal injury d Always hold the power tool securely with both hands on the grips provided Keep the grips dry clean and free from oil and grease 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 to
21. pe iden tification plate at the base of the power tool and the serial number on the side of the casing Make a note of this data in your operating instructions and always refer to it when making an enquiry to your Hilti representative or service department Type Generation 01 Serial no 2 Description 2 1 Use of the product as directed The SFC 18 A or SFC 14 A is a hand held cordless drill driver for driving and removing screws and for drilling in steel wood and plastic Working on materials hazardous to the health e g asbestos is not permissible Do not use the battery as a power source for other unspecified appliances Modification of the power tool or tampering with its parts is not permissible To avoid the risk of injury use only genuine Hilti accessories and insert tools Observe the information printed in the operating instructions concerning operation care and maintenance 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 incorrectly by untrained personnel or when used not as directed The working environment may be as follows construction site workshop renovation conversion or new construction 2 2 Chuck Quick release chuck O a EE 25 2 2011 13 27 Uhr Se
22. reakage 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 5 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 Use power tools only with specifically desig nated 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 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 oper
23. unction faultlessly 9 Troubleshooting Fault Possible cause The power tool doesn t run incorrectly Electrical fault The battery is discharged or fitted Remedy The battery must be heard to en gage with a double click or respec tively needs to be charged Remove the battery from the power tool and contact Hilti Service The power tool doesn t run and 1 LED blinks The on off switch can t be pressed i e the switch is locked The battery runs down more quickly than usual The battery is discharged The battery is too hot or too cold The forward reverse switch is in the middle position transport lock engaged Battery condition is not optimal Change the battery and recharge the discharged battery Bring the battery to the recom mended working temperature Push the forward reverse switch to the left or right Have battery condition diagnosed by Hilti Service or replace with a new battery The battery doesn t engage with an audible double click LED 1 blinks The retaining lugs on the battery are dirty The battery is discharged The power tool has been overloaded application limits exceeded Clean the retaining lugs and check that the battery engages securely Contact Hilti Service if the problem persists Charge the battery Use the right power tool for the job don t use a low powered tool for heavy work 11 10 Disposal CAUTION Improper disposal of t
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