Hilti 3512858 Use and Care Manual
Contents
1. TE 50 TE 50 AVR Hilti Corporation LI 9494 Schaan Bedienungsanleitung de Tel 423 234 2111 Operating instructions en Fax 423 234 2965 www hilti com Mode d emploi fr Manual de instrucciones es Istruzioni d uso it Gebruiksaanwijzing nl Brugsanvisning da Bruksanvisning no Bruksanvisning SV Kayttoohje fi Manual de instru es pt Odnyiec ypnoewe el LietoSanas pamaciba lv Instrukcija It Kasutusjuhend et 383919 Hilti registered trademark of Hilti Corp Schaan W 3254 0607 00 Pos 1 1 Printed in Liechtenstein 2007 383919 B Right of technical and programme changes reserved S E amp 0 j EN TE 50 TE 50 AVR combi hammer It is essential that the operating instructions are read before the power tool is operated 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 17 2 Description 19 3 Insert tools accessories 21 4 Technical data 21 5 Safety rules 22 6 Before use 20 7 Operation 20 8 Care and maintenance 21 9 Troubleshooting 20 10 Disposal 29 11 Manufacturer s warranty tools 30 12 EC declaration of conformity 30 Ell 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 th2. L x W x H Speed under no load Single impact energy Drilling dia range in concrete masonry hammer drilling Breach bits Percussion core bits Drilling dia range in wood solid TE 50 TE 50 AVR 1 050 W Rated voltage 100 V 12 8 A Rated voltage 110 V 12 6 A Rated voltage 120 V 12 7 A Rated voltage 220 V 5 7 A Rated voltage 230 V 5 8 A Rated voltage 240 V 5 8 A 50 60 Hz 5 7 kg 5 0 kg 462 mm x 113 mm x 243 mm 090 r p m 0 2 J 12 32 mm Q 30 32 mm 45 90 mm 6 35 mm 21 Power tool Drilling dia range in metal solid TE 50 TE 50 AVR 6 13mm Noise and vibration information measured in accordance with EN 60745 Typical A weighted sound power level TE 50 AVR Typical A weighted sound power level TE 50 Typical A weighted emission sound pressure level TE 50 AVR Typical A weighted emission sound pressure level TE 50 Uncertainty for the given sound level Triaxial vibration value for the TE 50 AVR vibration vector sum Drilling in metal a p Triaxial vibration value for the TE 50 AVR vibration vector sum Hammer drilling in concrete a up Chiseling ap cheg Triaxial vibration value for the TE 50 vibration vector sum Drilling in metal a p Triaxial vibration value for the TE 50 vibration vector sum Hammer drilling in concrete a up Chiseling a cheg Uncertainty K for triaxial vibration value Other information about the power to
3. Switch is set to Chisel adjustment 1 Turn the function selector switch until it engages in the Chisel adjustment position Do not oper ate the function selector switch while the motor is running 2 Bring the side handle into the desired position and check that it is fitted correctly and secured 3 Rotate the chisel to the desired position 7 2 4 2 Locking the chisel D Turn the function selector switch until it engages in the Chiseling position Do not operate the function Selector switch while the motor is running 7 2 4 3 Chiseling D 1 Plug the supply cord into the power outlet 2 Position the tip of the chisel at the point where chiseling is to begin 3 Press the control switch fully CAUTION Disconnect the supply cord plug from the power outlet 8 1 Care of insert tools 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 Care of the power tool The outer casing of the power tool is made from impact resistant plastic Sections of the 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 spra
4. a minimum operating temperature Bring the tip of the drill bit or chisel into contact with the workpiece and allow the power tool to run under no load until it reaches the minimum operating temperature If ne cessary repeat this procedure until the hammering mechanism begins to operate 1 Turn the function selector switch until it engages in the Hammer drilling position Do not operate the function selector switch while the motor is running 2 Bring the side handle into the desired position and check that it is fitted correctly and secured 3 Plug the supply cord into the power outlet 4 Position the power tool and drill bit at the point where the hole is to be drilled 9 Press the control switch slowly drill at a low speed until the drill bit centers itself in the hole 6 Press the control switch fully to continue drilling with full power 7 Do not apply excessive pressure This will not in crease the power tool s hammering performance Lower pressure extends the life of the insert tool 8 Care and maintenance 8 Reduce drilling speed shortly before breaking through in order to avoid damage to the surface at the rear side 7 2 4 Chiseling NOTE The chisel can be adjusted to 12 different positions in 30 increments This ensures that flat chisels and Shaped chisels can always be set to the optimum working position 7 2 4 1 Adjusting the chisel C CAUTION Do not operate the power tool when the selector
5. the chuck until it is heard to engage 6 Check that the insert tool has engaged correctly by pulling it 1 1 3 Removing the insert tool amp 1 Disconnect the supply cord plug from the power outlet 2 Open the chuck by pulling back the insert tool locking sleeve 3 Pull the drill bit out of the chuck 7 2 Operation CAUTION Working on the material may cause it to splinter Wear eye protection and protective gloves Wear breathing protection if no dust removal system is used Splintering material presents a risk of injury to the eyes and body CAUTION The work generates noise Wear ear protectors Exposure to noise can cause hearing loss CAUTION Improve the blood circulation in your fingers by relaxing your hands and exercising your fingers during breaks between working 26 7 2 1 TPS theft protection system optional NOTE The power tool may be equipped with the optional theft protection system If the power tool is equipped with this feature it can be unlocked and made ready for operation only through use of the corresponding TPS key 7 2 1 1 Unlocking the power tool 3 1 Plug the supply cord into the power outlet The yellow theft protection indicator LED blinks The power tool is now ready to receive the signal from the TPS key 2 Hold the TPS key or the TPS watch strap buckle against the lock symbol The power tool is un locked as soon as the yellow theft protection indicator LED no longer li
6. the side handle clamping band by turning Always use the side handle and hold the power the handle counterclockwise tool with both hands The user must be prepared for 2 Pivot the side handle into the desired position sudden sticking and stalling of the insert tool 3 Attach the clamp with the depth gauge to the CAUTION clamping band at the desired position Use clamps ora vice to hold the workpiece securely Release the screw at the depth gauge u 5 Adjust the depth gauge to the desired drilling CAUTION depth The collar at the front end of the gearing section is 6 Tighten the screw at the depth gauge firmly not to be used as a gripping surface 7 1 Preparing for use CAUTION Wear protective gloves when changing insert tools as the insert tools get hot during use 29 EN 7 Tighten the side handle securely by turning the grip section This also clamps the depth gauge in position 1 1 2 Fitting the insert tool El 1 Disconnect the supply cord plug from the power outlet Check that the connection end of the insert tool is clean and lightly greased Clean it and grease it if necessary 3 Check that the sealing lip of the dust shield is clean and in good condition Clean the dust shield if necessary or have it replaced if the sealing lip is damaged 4 Push the insert tool into the chuck and rotate it while applying slight pressure until it engages in the guide grooves 5 Push the insert tool further into
7. where there is a risk of fire or explosion The power tool may be operated only when connected to a power supply providing a voltage and frequency in compliance with the information given on its type identification plate 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 2 2 Chuck TE Y chuck SDS max 2 3 Switches Speed control switch for smooth starting Function selector switch Hammer drilling Drilling without hammering Chiseling Chisel position adjustment 12 positions 2 4 Grips Vibration absorbing pivotable side handle Vibration absorbing grip 2 5 Protective device Mechanical slip clutch Electronic restart interlock to prevent the power tool starting unintentionally after an interruption in the electric supply see section 9 Troubleshooting 2 6 Lubrication Oil lubrication 2 1 Active vibration reduction only TE 50 AVR The power tool is equipped with an AVR active vibration reduction system which reduces vibration significantly compared to power tools without active vibration reduction 19 2 8 TPS theft protection system optional The power tool may be equipped with the TPS theft protection system as an option If the power tool is equipped with this feature it can be unlocked and made re
8. ady for operation only through use of the corresponding TPS key 2 9 LED indicators service indicator LED see section Care and maintenance Theft protection system indicator optional see section Operation 2 10 Items supplied as standard Power tool with side handle Hilti toolbox Operating instructions Depth gauge Cleaning cloth Grease Dust shield ee ee M o M 2 11 Using extension cords Use only extension cords of a type approved for the application and with conductors of adequate cross section The power tool may otherwise loose performance and the extension cord may overheat Check the extension cord for damage at regular intervals Replace damaged extension cords Recommended minimum conductor cross section and max cable lengths Conductor cross section 1 5 mm 2 mm 2 5 mm 3 5 mm Mains voltage iV hem em Mains voltage 110 120 V Vains voltage 220 240V 30m sm Do not use extension cords with 1 25 mm conductor cross section 2 12 Using extension cords outdoors When working outdoors use only extension cords that are approved and correspondingly marked for this application 2 13 Using a generator or transformer This power tool may be powered by a generator or transformer when the following conditions are fulfilled The unit must provide a power output in watts of at least twice the value printed on the type identification plate on the power tool The operating voltage mus
9. dents 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 moving parts g If devices are provided for the connection of dust extraction and collection facilities ensure these are connected and properly used Use of these devices can reduce dust related hazards 5 1 4 Power tool use and care a Do not force the power tool Use the correct power tool for your application The correct power tool will do the job better and safer at the rate for which it was designed b Do not use the power tool if the switch does not turn it on and off Any power tool that cannot be controlled with the switch is dangerous and must be repaired c Disconnect the plug from the power source and or the battery pack from the power tool before making any adjustments changing ac cessories or storing power tools Such prevent ive safety measures reduce the risk of starting the power tool accidentally d Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these inst
10. e is inadequate approved length and or of adequate gauge The voltage provided by the electric Connect the power tool to a different supply is too low power source The drill bit doesn t rotate The function selector switch is not When the motor has stopped move engaged or is in the Chiseling or the function control switch to the Chisel adjustment position Drilling without hammering or The drill bit chisel cant be The chuck is not pulled back fully Pull the chuck back as far as it will released from the chuck go and remove the insert tool The side handle is not fitted Release the side handle and refit correctly it correctly so that the clamping band and side handle engage in the groove 10 Disposal Most of the materials from which Hilti power tools or appliances are manufactured can be recycled The materials must be correctly separated before they can be recycled In many countries Hilti has already made arrangements for taking back your old power tools or appliances for recycling Please ask your Hilti customer service department or Hilti representative for further information For EC countries only Disposal of electric tools together with household waste is not permissible In observance of European Directive 2002 96 EC on waste electrical and electronic equipment and its implementation in accordance with national law electric tools that have reached the end of their life must be collected separately and r
11. ents concerning warranties 12 EC declaration of conformity Designation Combi hammer Type TE 50 TE 50 AVR Year of design 2006 We declare on our sole responsibility that this product complies with the following directives and standards 73 23 EEC 89 336 EEC 98 37 EC EN 55014 1 EN 55014 2 EN 60745 1 EN 60745 2 6 EN 61000 3 2 EN 61000 3 3 Hilti Corporation Dalam Peter Cavada Head of BU Quality and Process Management Business Area Electric Tools amp Ac cessories 11 2006 dilla Ma Matthias Gillner Executive Vice President Business Area Electric Tools amp Accessories 11 2006
12. ese operating instructions the designation the power tool always refers to the TE 50 or TE 50 AVR combihammer Operating controls and indicators KE 1 Chuck 2 Function selector switch 3 Control switch 4 Supply cord 5 Side handle 6 Depth gauge 7 Service indicator Theft protection indicator option 9 AVR active vibration reduction only TE 50 AVR 1 General information 1 1 Safety notices and their meaning WARNING Draws attention to a potentially dangerous situation that could lead to serious personal injury or fatality CAUTION Draws attention to a potentially dangerous situation that could lead to slight personal injury or damage to the equipment or other property NOTE Draws attention to an instruction or other useful information 1 2 Explanation of the pictograms and other information Warning signs Warning hot surface General warning Warning electricity 17 Obligation signs Y Wear eye protection Wear breathing protection Symbols Read the operating instructions before use T Chiseling W Watts min Revolutions per minute a Lock symbol 18 d Wear a hard hat LAY SY Return waste material for recycling Chisel position adjustment NY Alternating current Diameter Wear ear protection NN Drilling without hammering V Volts Hz Hertz m Double in
13. eturned to an environmentally compatible recycling facility 29 11 Manufacturer s warranty tools Hilti warrants that the tool supplied is free of defects in material and workmanship This warranty is valid so long as the tool is operated and handled correctly cleaned and serviced properly and in 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 Additional claims are excluded unless stringent na tional rules prohibit such exclusion In particular Hilti is not obligated for direct indirect incidental 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 Implied warranties of merchantability or fitness for a par ticular 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 contempor aneous comments and oral or written agreem
14. ghts NOTE If for example the electric supply is briefly interrupted due to a power failure or disconnected when moving to a different workplace the power tool remains ready for operation for approx 20 minutes In the event of a longer interruption the TPS key must be used again to unlock the power tool 1 2 1 2 Activation of the theft protection system for the power tool NOTE Further detailed information on activation and use of the theft protection system can be found in the operating instructions for the theft protection system 1 2 2 Drilling without hammering A 1 Turn the function selector switch until it engages in the Drilling without hammering position Do not operate the function selector switch while the motor is running 2 Bring the side handle into the desired position and check that it is fitted correctly and secured 3 Plug the supply cord into the power outlet 4 Position the power tool and drill bit at the point where the hole is to be drilled 9 Press the control switch slowly drill at a low speed until the drill bit centers itself in the hole 6 Press the control switch fully to continue drilling with full power 7 Do not apply excessive pressure This will not increase the power tool s drilling performance Lower pressure extends the life of the insert tool 1 2 3 Hammer drilling B NOTE Working at low temperatures The hammering mech anism works only when the power tool has reached
15. l reduce risk of electric shock b Avoid body contact with earthed or grounded surfaces such as pipes radiators ranges and refrigerators There is an increased risk of electric shock if your body is earthed or grounded C Do not expose power tools to rain or wet con ditions Water entering a power tool will increase the risk of electric shock d Do not abuse the cord Never use the cord for carrying pulling or unplugging the power tool Keep cord away from heat oil sharp edges or moving parts Damaged or entangled cords increase the risk of electric shock e When operating a power tool outdoors use an extension cord suitable for outdoor use Use of a cord suitable for outdoor use reduces the risk of electric shock 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 safety equipment Always wear eye pro tection Safety equipment such as dust mask non skid safety shoes hard hat or hearing pro tection used for appropriate conditions will reduce personal injuries c Avoid accidental starting Ensure the switch is in the off position before plugging in Carrying power tools with your finger on the switch or plugging in power tools that have the switch on invites acci
16. l doesn t start Interruption in the electric supply Plug in another electric appliance and check whether it works The supply cord or plug is defective Have it checked by a trained electrical specialist and replaced if necessary Generator with sleep mode Apply a load to the generator by Other electrical fault connecting another appliance e g a lamp Subsequently switch the power tool off and on again Have it checked by a trained electrical specialist The electronic restart interlock is Switch the power tool off and on activated after an interruption in the again electric supply No hammering action The power tool is too cold Allow the power tool to warm up to the minimum operating temperature see section 7 2 3 Hammer drilling B The power tool doesn t start A fault has occurred in the power If necessary the power tool should and the LED blinks red tool 28 be repaired by Hilti Service Fault Possible cause Remedy The power tool doesn t start The carbon brushes are worn Have it checked by a trained and the LED lights red electrical specialist and replaced if necessary The power tool doesn t start The power tool has not been Use the TPS key to unlock the power and the indicator lamp blinks unlocked power tools with optional tool yellow theft protection system The power tool doesn t achieve The extension cord is too long or its Use an extension cord of an full power gaug
17. ol Chuck Protection class as per EN 104 dB A 106 dB A 93 dB A 95 dB A 3 dB A Measured in accordance with EN 60745 2 1 prAA 2005 2 5 m s Measured in accordance with EN 60745 2 6 prAB 2005 11 4 m s 8 1 m s Measured in accordance with EN 60745 2 1 prAA 2005 2 5 m s Measured in accordance with EN 60745 2 6 prAB 2005 16 1 m s 11 3 m s 1 5 m s TE Y Protection class double insulated as per EN 60745 5 Safety rules 5 1 General power tool safety warnings WARNING Read all instructions Failure to follow all instructions listed below may result in electric shock fire and or serious injury The term power tool in all of the warnings listed below refers to your mains Operated corded power tool or battery operated cordless power tool SAVE THESE INSTRUCTIONS 5 1 1 Work area safety a Keep work area clean and well lit Cluttered or dark areas invite accidents 22 b Do not operate power tools in explosive atmo spheres such as in the presence of flammable liquids gases or dust Power tools create sparks which may ignite the dust or fumes c Keep children and bystanders away while 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 wil
18. power tool is used without a dust removal system for work that creates dust e Improve the blood circulation in your fingers by relaxing your hands and exercising your fingers during breaks between working f Avoid touching rotating parts Switch the power tool on only after bringing it into position at the workpiece Touching rotating parts especially rotating insert tools may lead to injury g Always lead the supply cord and extension cord away from the power tool to the rear while working This helps to avoid tripping over the cord while working 5 2 2 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 c Switch the power tool off and unplug the supply cord in the event of a power failure or interruption in the electric supply This will prevent accidental restarting when the electric power returns d Always work from a secure safe stance 9 2 3 Electrical safety a Before beginning work check the working area e g using a metal detector to ensure that no concealed electric cables or gas and water pipes are present External metal parts of the power tool may become live for example when an electric cable is damaged accidentally This presents a se
19. rious risk of electric shock 24 b Check the power tool s supply cord at regular intervals and have it replaced by a qualified specialist if found to be damaged Check ex tension cords at regular intervals and replace them if found to be damaged Do not touch the supply cord or extension cord if it is damaged while working Disconnect the supply cord plug from the power outlet Damaged supply cords or extension cords present a risk of electric shock c Dirty or dusty power tools which have been used frequently for work on conductive materi als should be checked at regular intervals at a Hilti Service Center Under unfavorable circum stances dampness or dust adhering to the surface of the power tool especially dust from conductive materials may present a risk of electric shock d When working outdoors with an electric tool or machine check to ensure that the tool or machine is connected to the electric supply by way of a ground fault circuit interrupter RCD with a rating of max 30 mA tripping current Use of a ground fault circuit interrupter reduces the risk of electric shock e Use of a ground fault circuit interrupter RCD residual current device with a maximum tripping current of 30 mA is recommended f In case of an interruption in the electric supply Switch the power tool off and unplug the supply cord This will prevent accidental restarting when the electric power returns 5 2 4 Work area safety a Ensure
20. ructions to operate the power tool Power tools are dangerous in the hands of untrained users e Maintain power tools Check for misalignment or binding of moving parts breakage of parts and any other condition that may affect the power tool s operation If damaged have the power tool repaired before use Many accidents are caused by poorly maintained power tools Keep cutting tools sharp and clean Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control g Use the power tool accessories and tool bits etc in accordance with these instructions and in the manner intended for the particular type of power tool 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 h 5 1 5 Service a Have your power tool serviced by a qualified repair person using only identical replacement parts This will ensure that the safety of the power tool is maintained 23 5 2 Additional safety instructions 5 2 1 Personal safety a Wear ear protectors Exposure to noise can cause hearing loss b Use auxiliary handles supplied with the tool Loss of control can cause personal injury c Always hold the power tool securely with both hands on the grips provided Keep the grips dry clean and free from oil and grease d Breathing protection must be worn if the
21. sulated Wear protective gloves 4T Hammer drilling A Amps No Rated speed under no load Equipped with theft protection system Location of identification data on the power tool The type designation and serial number can be found on the type identification plate on the machine or tool 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 Serial no 2 Description 2 1 Use of the product as directed The power tool is an electrically powered combihammer with pneumatic hammering mechanism The power tool is intended for drilling in concrete masonry metal and wood The power tool can also be used for light to medium duty chiseling work on masonry and for surface finishing on concrete Working on materials hazardous to the health e g asbestos is not permissible 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 The power tool may be used only in a dry environment Do not use the power tool
22. t remain within 5 and 15 of the rated voltage at all times frequency must be in the 50 60 Hz range and never above 65 Hz and the unit must be equipped with automatic voltage regulation and starting boost Never operate other power tools or appliances from the generator or transformer at the same time Switching other power tools or appliances on and off may cause undervoltage and or overvoltage peaks resulting in damage to the power tool 20 3 Insert tools accessories TPS theft protection system with company card company remote and TPS K key Chuck Setting tool Quick release chuck Dust removal system Hammer drill bits Breach bits Percussion core bits Chisels Wood drill bits Metal drill bits Option TE Y Setting tool with TE Y connection end Keyless chuck for wood and metal drill bits with Smooth or hex shank Chuck holder TE DRS S 12 32 mm 30 32 mm 45 90 mm Pointed flatand shaped chisels with TE Y connection end 6 35 mm 6 13 mm 4 Technical data Right of technical changes reserved NOTE The power tool is available in various voltage ratings Please refer to the type identification plate for details of the power tool s voltage and power rating Power tool Rated power input Rated voltage rated current Mains frequency Weight in accordance with EPTA procedure 01 2003 TE 50 Weight in accordance with EPTA procedure 01 2003 TE 50 AVR Dimensions
23. 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 c If the work involves breaking right through take the appropriate safety measures at the opposite side Parts breaking away could fall out and or fall down and injure other persons 5 2 5 Personal protective equipment tection protective gloves and breathing protection 2 F p PES while the power tool is in use E The user and any other persons in the vicinity must wear suitable eye protection a hard hat ear pro 6 Before use 3 Slide the side handle clamping band over the chuck and onto the cylindrical section at the front end of the power tool 4 Pivot the side handle into the desired position 6 1 Fitting and adjusting the side handle El 9 Secure the side handle by turning the grip clock CAUTION ia Remove the depth gauge from the side handle in order to avoid injury 6 2 Unlocking the power tool see section Operation 1 Disconnect the supply cord plug from the power outlet 6 3 Use of extension cords and generators or 2 Release the side handle clamping band by turning transformers the handle counterclockwise Please refer to section 2 Description T Operation CAUTION In accordance with the applications for which it is 7 1 1 Adjusting the depth gauge designed the power tool produces a high torque 4 Release
24. y steam pressure cleaning equipment or running water for cleaning This may negatively affect the electrical safety of the power tool Always keep the grip surfaces of the power tool free from oil and grease Do not use cleaning agents which contain silicone 2 8 3 Service indicator NOTE The power tool is equipped with a service indicator Indicator Constant red light Blinking red light 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 End of service interval servicing is due After the lamp lights for the first time the power tool may continue to be used for several hours before the automatic cut out is activated To ensure that the power tool is always ready for use it should be returned to Hilti for servicing in good time See section Troubleshooting 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 function faultlessly 9 Troubleshooting T Fault Possible cause Remedy The power too
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