Bedienungsanleitung de Operating instructions en Mode d
Contents
1. E Bu Bedienungsanleitung Operating instructions Mode d emploi Istruzioni d uso Manual de instrucciones Manual de instru es Gebruiksaanwijzing Brugsanvisning Bruksanvisning Bruksanvisning K ytt ohje D nyiec Xpnoswg Haszn lati utasit s Instrukcja obstugi N vod k obsluze N vod na obsluhu Upute za uporabu Navodila za uporabo Instructiuni de utilizare Kulllanma Talimati 7 Js 4 LietoSanas pamaciba D Instrukcija f Kasutusjuhend 3 DURA E Ag eH BLA N 1 RENAE 3 ce ORIGINAL OPERATING INSTRUCTIONS PRE 3 rotating laser It is essential that the operating instructions are read before the tool is operated for the first time Always keep these operating instructions to gether with the tool Ensure that the operating instructions are with the tool when it is given to other persons Contents Page 1 General information 12 2 Description 13 3 Accessories 15 4 Technical data 18 5 Safety instructions 16 6 Before use 17 7 Operation 18 8 Care and maintenance 19 9 Disposal 20 10 Manufacturer s warranty tools 21 11 FCC statement applicable in US IC statement applicable in Canada 21 12 EC declaration of conformity original 22 EI These numbers refer to the corres2. This equipment gen erates uses and may radiate radio frequency energy Accordingly if not installed and used in accordance with the instructions it may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television recep Additional claims are excluded unless stringent na tional rules prohibit such exclusion In particular Hilti is not obligated for direct indirect incidental or con sequential damages losses or expenses in connec tion 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 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 contemporaneous comments and oral or written agreements concerning warranties tion which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by taking the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and re ceiver Consult your dealer or an experienced TV radio techni c
3. the mains supply k Check to ensure that the tool and mains adapter do not present an obstacle that could lead to a risk of tripping and personal injury Ensure that the workplace is well lit m 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 n Check the condition of the extension cord and replace it if damage is found Do not touch the mains adapter if the extension cord or mains ad apter are damaged while working Disconnect the supply cord plug from the power outlet Damaged supply cords or extension cords present a risk of electric shock Donotexpose the supply cord to heat oil or sharp edges p Never operate the mains adapter when it is dirty or wet Dust especially dust from conductive ma terials or dampness adhering to the surface of the mains adapter may under unfavorable condi tions lead to electric shock Dirty or dusty tools should thus be checked at a Hilti service center at regular intervals especially if used frequently for working on conductive materials q Avoid touching the contacts 5 4 1 Battery tool use and care a Check that the tool is switched off before fitting the battery Use only the Hilti battery approved for use with this tool b Do not expose batteries to high temperatures or fire This presents a risk of explosion c Do not disassemble
4. the battery 1 Turn the catch in a counterclockwise direction from the second detent back to the open position the unlocked symbol is displayed 2 Pull the battery out of the tool 6 7 Options for charging the battery DANGER The PRA 85 mains adapter is for indoor use only Avoid ingress of moisture 6 7 1 Charging the battery in the tool El NOTE When charging check that the temperature is within the recommended charging temperature range 0 to 40 C 32 to 104 F 1 Swing the cover to the side so that the charging cord socket becomes accessible 2 Connect the charging cord from the mains adapter or car charging connector to the battery 3 During charging the charge status is indicated by the battery status LEDs on the tool the tool must be switched on 6 7 2 Charging the battery outside the tool El NOTE When charging check that the temperature is within the recommended charging temperature range 0 to 40 C 32 to 104 F 1 Remove the battery from the tool and connect it to the mains adapter or car charging connector 2 The red LED on the battery lights while charging is in progress 6 7 3 Charging the battery while the tool is in operation CAUTION Avoid ingress of moisture Moisture may cause a short circuit resulting in a risk of burning injury or fire 1 Rotate the cover so that the charging cord socket becomes accessible 2 Connect the charging cord from the mains adapter to th
5. ace not subject to vibration e Use the tool only within its specified limits f When working in charging during operation mode attach the mains adapter in a secure posi tion e g on a tripod g Use the appliance and its accessories etc in ac cordance with these instructions and in the man ner intended for the particular type of appliance Take the working conditions and the work to be performed into account Use of appliances for ap plications different from those intended could result in a hazardous situation h Use of the telescopic staff in the vicinity of over head high voltage cables is not permissible 5 3 1 Electromagnetic compatibility Although the tool complies with the strict requirements of the applicable directives Hilti cannot entirely rule out the possibility of the tool being subject to interference caused by powerful electromagnetic radiation leading to incorrect operation Check the accuracy of the tool by taking measurements by other means when working under such conditions or if you are unsure Likewise Hilti cannot rule out the possibility of interference with other devices e g aircraft navigation equipment 5 3 2 Laser classification for laser class Il appliances Depending on the version purchased the tool complies with Laser Class 2 in accordance with IEC825 3 2007 EN60825 3 2007 and Class II in accordance with CFR 21 1040 FDA This tool may be used without need for further pro
6. and all LEDs blink if the tool is set up outside its self levelling range or movement is blocked mechanically The tool can be set up on a tripod with a 5 8 thread or stood directly on some other steady surface free of vibration When automatic leveling is activated for one or both axes the built in servo system ensures that the specified accuracy is maintained The tool switches itself off when automatic leveling cannot be achieved tool 13 set up outside its leveling range or physical impediment of the mechanism or when knocked off level see Shock warning section NOTE If the correct level cannot be achieved the laser switches itself off and all LEDs blink 2 7 Items supplied PRE 3 rotating laser PRA 30 laser receiver PRA 80 laser receiver holder PRE 3 operating instructions PRA 30 operating instructions PRA 84 battery PRA 85 mains adapter Batteries size AA cells Manufacturer s certificates Hilti toolbox a a 2 8 Operating status indicators The tool is equipped with the following operating status indicators auto leveling LED inclination angle LED and shock warning LED 2 9 LED indicators Auto leveling LED The green LED blinks The tool is in the leveling phase The green LED lights con The tool has leveled itself is operating stantly normally Shock warning LED The shock warning LED lights The LED lights orange after deactivation orange of the shock warning Inclination ind
7. button on the tool for at least 4 seconds when switching on 2 The shock warning LED lights constantly indicating that the function has been deactivated Release the on off button 4 Toreturn to the standard operating modus the tool must be switched off and then restarted e 7 4 Switching on in manual mode 1 To activate the inclined plane function press the on off button on the tool for 8 seconds when switching on 2 After 8 seconds the inclined plane LED lights con stantly indicating that the inclined plane function is activated Release the button 4 The horizontal plane is then no longer monitored 5 To return to the standard operating modus the tool must be switched off and then restarted e 8 Care and maintenance 8 1 Cleaning and drying 1 Blow dust off the laser exit window 2 Do not touch the laser exit apertures and filter with the fingers 3 Useonlyaclean soft cloth for cleaning If necessary moisten the cloth slightly with pure alcohol or a little water NOTE Do not use any other liquids as these may damage the plastic components 4 Observe the temperature limits when storing your equipment This is particularly important in winter summer if the equipment is kept inside a motor vehicle 25 C to 60 C 8 2 Care of the Li ion battery Avoid ingress of moisture Charge the battery fully before using it for the first time In orderto achieve maximum battery life stop discharg
8. class Class 2 visible 635 nm lt 1 mW EN 60825 3 2007 IEC 60825 3 2007 class Il CFR 21 1040 FDA Speed of rotation 300 min 10 Self leveling range 10 5 Power source 7 2V 4 5 Ah Li ion battery Battery life Temperature 20 C 68 F Li ion battery 40 h Operating temperature range 20 50 C 4 F to 122 F Storage temperature range dry 25 60 C 13 F to 140 F Protection class IP 56 in accordance with IEC 60529 notin charging _ during operation mode Tripod thread 98 X18 Weight including battery 2 4 kg 5 3 Ibs Dimensions L x W x H 252 mm X 252 mm X 201 mm 10 x 10 x 8 PRA 84 Li ion battery Rated voltage normal mode 7 2V Maximum voltage during operation or during charging 13V while in operation Rated current 120 mAh Charging time 2 h 32 C Battery is 80 charged Operating temperature range 20 50 C 4 F to 122 F Storage temperature range dry 25 60 C 13 F to 140 F Charging temperature range also for charging during 0 40 C 32 to 104 F operation Weight 0 3 kg 0 67 lbs Dimensions L x W x H 160 mm X 45 mm X 36 mm 6 3 x 1 8 x 1 4 PRA 85 mains adapter Mains supply Mains frequency Rated power Rated voltage Operating temperature range Storage temperature range dry Weight Dimensions L x W x H 115 230 V 47 63 HZ 40 W 12V 0 40 C 32 F to 104 F 25 60 C 13 F to 140 F 0 23 k
9. e battery 3 The tool continues to operate while charging is in progress 4 During charging the charging status is indicated by the LEDs on the tool 7 Operation 7 1 Working in the horizontal plane 1 Set up the tool a steady position suitable for the application e g on a tripod 2 Press the on off button The auto leveling LED blinks green 3 The laser switches on and the beam begins to rotate as soon as the tool has leveled itself The green auto leveling LED lights constantly 7 2 Working with the laser receiver The PRA 30 laser receiver can be used at distances ra diuses of up to 200m 650ft The laser beam is indicated by visual and audible signals 7 2 1 Working with the laser receiver as a hand held unit 1 Press the on off button 2 Hold the PRA 30 with the receiving window in the plane of the rotating laser beam The laser beam is indicated by visual and audible signals 7 2 2 Working with the laser receiver in the PRA 80 receiver holder A 1 Open the catch on the PRA 80 2 Place the PRA 30 laser receiver in the PRA 80 receiver holder 3 Close the catch on the PRA 80 4 Switch the laser receiver on by pressing the on off button 5 Turn the rotating grip to the open position 6 Fit the PRA 80 receiver holder onto the telescopic staff or leveling staff and secure it by tightening the rotating grip 7 Hold the PRA 30 with the receiving window in the plane of the rotating laser b
10. eam Symbol for Laser Class II Class 2 Location of identification data on the tool The type designation and serial number can be found on LASER RADIATION DO NOT the type identification plate on the tool Make a note of aM this data in your operating instructions and always refer OA mar to it when making an enquiry to your Hilti representative or service department Laser class 11 Laser class 2 according to according to CFR 21 1040 EN 60825 Type FDA 3 2007 Generation 01 Serial no 2 Description 2 1 Use of the product as directed The Hilti PRE 3 is a rotating laser tool that emits a rotating laser beam The tool is designed to be used for determining transferring and checking reference levels in the horizontal plane Examples of uses are the transferring of datum lines and heights Use of tools or mains adapters which show visible signs of damage is not permissible Operation outdoors or in damp conditions in Charging during operation mode is not permissible Hilti supplies various accessories which allow the tool to be used with maximum efficiency The tool and its ancillary equipment may present hazards when used incorrectly by untrained personnel or when used not as directed 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 Take the influences of the
11. eam The laser beam is indicated by visual and audible signals 7 2 3 Working with the PRA 81 height transfer device 1 Open the catch on the PRA 81 2 Place the PRA 30 laser receiver in the PRA 81 height transfer device 3 Close the catch on the PRA 81 4 Switch the laser receiver on by pressing the on off button 5 Hold the PRA 30 with the receiving window in the plane of the rotating laser beam The laser beam is indicated by visual and audible signals 6 Use the measuring tape to measure the desired distance 7 2 4 Menu options Press the on off button for two seconds when switching on The menu then appears in the display Use the measuring units button to select metric or imper ial measuring units Use the volume button to assign the high pitched signal to the upper or lower area of the receiving window To save the settings switch the PRA 30 off 7 2 5 Setting the measuring unit The units button can be used to set the desired meas uring unit according to the country of use mm cm off or in Y sin off 7 2 6 Setting the volume of the audible signal When the receiver is switched on the volume is set to normal The volume can be changed form normal to loud by pressing the audible signal button Pressing the button again switches the volume to off and a further press of the button switches it to quiet 7 3 Deactivating the shock warning system 1 Press the on off
12. es together with household waste In observance of the European Directive on waste electrical and electronic equipment and its imple mentation in accordance with national law electric tools and batteries that have reached the end of their life must be collected separately and returned to an environmentally compatible recycling facility Dispose of the batteries in accordance with national regulations Please help us to protect the environ ment 10 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 main tained 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 re placement of defective parts only over the entire lifespan of the tool Parts requiring repair or replacement as a result of normal wear and tear are not covered by this warranty 11 FCC statement applicable in US IC statement applicable in Canada CAUTION This equipment has been tested and found to comply with the limits for a class B digital device pursuant to part 15 of the FCC rules These limits are designed to provide reasonable protection against harmful interfer ence in a residential installation
13. g 0 51 Ibs 110 mm X 50 mm X 32 mm 4 3 x 2 x 1 3 5 Safety instructions 5 1 Basic information concerning safety In addition to the information relevant to safety given in each ofthe sections of these operating instructions the following points must be strictly observed at all times 5 2 General safety rules a Do not render safety devices ineffective and do not remove information and warning notices b Keep laser tools out of reach of children c Failure to follow the correct procedures when open ing the tool may cause emission of laser radiation in excess of class 2 or respectively class 3 Have the tool repaired only at a Hilti service center d Take the influences of the surrounding area into account Do not use the tool where there is a risk of fire or explosion e Statement in accordance with FCC 15 21 Changes or modifications not expressly approved by the manufacturer can void the user s authority to operate the equipment 5 3 Proper organization of the work area a Secure the area in which you are working and take care to avoid directing the beam towards other persons or towards yourself when setting up the tool b Avoid unfavorable body positions when working from ladders Make sure you work from a safe stance and stay in balance at all times c Measurements taken through or from panes of glass or through other objects may be inaccurate d Ensure that the tool is set up on a steady level surf
14. he Hilti toolbox or packaging of equivalent quality for transporting or shipping your equipment CAUTION Always remove the battery from the tool before ship ping 8 5 Hilti Calibration Service We recommend that the tool is checked by the Hilti Cal ibration Service at regular intervals in order to verify its reliability in accordance with standards and legal require ments Use can be made of the Hilti Calibration Service at any time but checking at least once a year is recommended The Calibration Service provides confirmation that the tool is in conformance on the day it is tested with the specifications given in the operating instructions The tool will be readjusted if deviations from the man ufacturer s specification are found After checking and adjustment a calibration sticker applied to the tool and a Calibration certificate provide written verification that the tool operates in accordance with the manufacturer s specification Calibration certificates are always required by companies certified according to ISO 900x Your local Hilti Center or representative will be pleased to provide further information 8 5 1 Checking accuracy In order to ensure compliance with the technical spe cifications the tool should be checked regularly at least before each major relevant job 8 5 1 1 Checking horizontal rotation 1 Set up the tool in the horizontal plane at a distance of 20 m 65 ft from a wall the tool may be se
15. ian for assistance NOTE Changes or modifications not expressly approved by Hilti could limit the user s right to operate the equipment en 12 EC declaration of conformity original Designation Rotating laser Type PRE 3 Generation Of Year of design 2008 We declare on our sole responsibility that this product complies with the following directives and standards 2011 65 EU 2006 95 EC 2004 108 EC EN ISO 12100 Hilti Corporation Feldkircherstrasse 100 FL 9494 Schaan aly ne Paolo Luccini Head of BA Quality and Process Man agement Business Area Electric Tools amp Ac cessories 01 2012 alla Mas Matthias Gillner Executive Vice President Business Area Electric Tools amp Accessories 01 2012 Technical documentation filed at Hilti Entwicklungsgesellschaft mbH Zulassung Elektrowerkzeuge Hiltistrasse 6 86916 Kaufering Deutschland iL Ti Hilti Corporation LI 9494 Schaan Tel 423 234 21 11 Fax 423 2342965 www hilti com Hilti registered trademark of Hilti Corp Schaan W 3602 0313 00 Pos 1 1 Printed in Germany 2013 Right of technical and programme changes reserved S E amp 368228 A2
16. icator The orange LED lights con The inclination angle LED indicates that stantly the manual inclination function is active All LEDs All LEDs blink The tool has been bumped or brought out of level 2 10 Charge status of the Li ion battery during operation LEDs light constantly LEDs blink Charge status C LED 1 2 3 4 75 LED 1 2 3 5 5096 C lt 75 96 LED 1 2 25 96 C lt 50 LED 1 2 1096 3 C 25 96 LED 1 C 10 96 2 11 Charge status of the Li ion battery during charging while fitted to the tool LEDs light constantly LEDs blink Charge status C LED 1 2 3 4 100 LED 1 2 3 LED 4 75 96 C 100 96 LED 1 2 LED 3 50 C75 96 LED 1 LED 2 25 96 s C 50 96 E LED 1 lt 25 96 2 12 Charge status of the Li ion battery during charging while not fitted to the tool If the red LED lights constantly the battery is being charged If the red LED doesn t light the battery is fully charged 3 Accessories Designation Short designation Various tripods PUA 20 PA 921 PUA 30 and PA 931 2 Telescopic staffs PA 950 960 PA 951 961 PA 962 and PUA 50 Slope adapter PRA 78 Car charging connector PRA 86 Height transfer device PRA 81 4 Technical data Right of technical changes reserved PRE 3 Receiving range diameter With PRA 30 laser receiver 2 400 m 6 to 1300 ft Accuracy per 10 m 0 5 mm horizontal distance 0 5 mm 0 02 in 32 ft 75 F temperature 24 C Laser
17. ing the battery as soon as a significant drop in performance is noticed NOTE If use of the tool continues further battery discharge will be stopped automatically before the battery cells suffer damage The tool switches itself off Charge the battery with the Hilti charger approved for use with Li ion batteries NOTE A conditioning charge as is required with NiCd or NiMH batteries is not necessary Interruption of the charging procedure has no negative effect on battery life 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 If 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 8 3 Storage Remove the tool from its case if it has become wet The tool its carrying case and accessories should be cleaned and dried at maximum 40 C 104 F Repack the equipment only once it is completely dry Check the accuracy of the equipment before it is used after along period of storage or transportation 8 4 Transport Use t
18. n the tool begins to level itself automat ically 6 2 LED indicators Please refer to section 2 Description 6 3 Battery use and care 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 4 Charging the battery DANGER Use only the Hilti batteries and Hilti mains adapters listed under Accessories 17 6 4 1 Charging a new battery for the first time Charge the battery fully before using it for the first time NOTE Make sure the system to be charged is standing securely 6 4 2 Charging a previously used battery Ensure that the outer surfaces of the battery are clean and dry before inserting it in the tool Li ion batteries are ready for use at any time even when only partly charged During charging progress is indic ated by the LEDs on the tool 6 5 Fitting the battery DANGER Use only the Hilti batteries and Hilti mains adapters listed under Accessories CAUTION Before inserting the battery in the tool check that the terminals of the battery and the tool are free from foreign objects 1 Push the battery into the tool 2 Turn the catch in a clockwise direction to the second detent the locked symbol is displayed 6 6 Removing
19. ponding illustra tions The illustrations can be found on the fold out cover pages Keep these pages open while studying the oper ating instructions In these operating instructions the designation the tool always refers to the PRE 3 rotating laser Parts operating controls and indicators EI PRE 3 rotating laser o Laser beam plane of rotation Rotating head 3 Control panel display 4 Grip 5 Battery compartment 8 Li ion battery 7 Base plate with 5 s thread PRE 3 control panel On off button 9 Auto leveling LED 10 Shock warning deactivation LED 11 Inclination angle LED 2 Battery status indicator PRA 84 battery 13 Catch 4 Charging cord socket 15 Battery status indicator LED 1 General information 1 1 Safety notices and their meaning DANGER Draws attention to imminent danger that will 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 NOTE Draws attention to an instruction or other useful informa tion 1 2 Explanation of the pictograms and other information Symbols min ES Read the operating instructions before use Return waste material for recycling General warning Do not look into the b
20. squash or incinerate batter ies and do not subject them to temperatures over 75 C A risk of fire explosion or injury through con tact with caustic substances may otherwise result d Avoid ingress of moisture Moisture 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 tool or appliance 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 batteries g Avoid short circuiting the battery Before inserting the battery in the tool check that the terminals of the battery and the tool are free from foreign objects Short circuiting the battery terminals presents a risk of fire explosion or contact with caustic substances h 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 i Use only the specified battery to power the tool and use only the PRA 85 mains adapter or PRA 86 car charging connector for charging Failure to observe these points may result in damage to the tool 6 Before use NOTE The tool may be powered only by the Hilti PRA 84 battery which is manufactured in accordance with IEC 60285 6 1 Switching the tool on Press the on off button NOTE After switching o
21. surrounding area into account Do not use the appliance where there is a risk of fire or explosion Modification of the tool is not permissible 2 2 Features Using the tool a single person can level and align in all planes very quickly and with great accuracy tool used in conjunction with the PRA 30 laser receiver The preset speed of rotation is 300 U min r p m The tool levels itself automatically after it is switched on automatic leveling within an inclination of 10 5 LEDs indicate the tool s current operating status The PRE 3 is easy to set up and operate and features a rugged casing The tool is powered by a rechargeable Li ion battery which can be charged while the tool is in operation 2 3 Horizontal plane After switching on the tool levels itself automatically by way of 2 built in servo motors 2 4 Inclined plane manual alignment in the desired plane of inclination The desired inclination can be set with the aid of the PRA 78 slope adapter For further information on using the slope adapter please refer to the instruction sheet supplied with the PRA 78 2 5 Shock warning The built in shock warning function becomes active one minute after completion of auto leveling The tool goes into warning mode if it is knocked off level due to vibration or impact while in operation all LEDs blink the head of the laser stops rotating The laser beam is switched off 2 6 Automatic cut out The laser does not switch on
22. t up on a tripod 2 With the aid of the laser receiver mark a spot or a line on the wall 3 Pivot the tool through 180 about its own axis In doing so ensure that the height of the tool does not change 4 With the aid of the laser receiver mark a second spot or line on the wall NOTE If this procedure is carried out carefully the vertical distance between the two spots or lines should be less than 2 mm 0 15 in at 20 m If the deviation is greater Please return the tool to Hilti Service for calibration 9 Disposal WARNING Improper disposal of the equipment may have serious consequences The burning of plastic components generates toxic fumes which may present a health hazard Batteries may explode if damaged or exposed to very high temperatures causing poisoning burns acid burns or environmental pollution Careless disposal may permit unauthorized and improper use of the equipment This may result in serious personal injury injury to third parties and pollution of the environment EO Most of the materials from which Hilti 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 old tools and appliances for recycling Ask Hilti customer service or your Hilti representative for further information For EC countries only Do not dispose of electronic measuring tools or applianc
23. tective measures The eyelid closure reflex protects the eyes when a person looks into the beam unintentionally for a brief moment This eyelid closure reflex however may be negatively affected by medicines alcohol or drugs Nevertheless as with the sun one should not look directly into sources of bright light Do not direct the laser beam toward persons 5 4 General safety rules a Check the condition of the tool before use If the tool is found to be damaged have it repaired at a Hilti service center b The user must check the accuracy of the tool after it has been dropped or subjected to other mechanical stresses c When the tool is brought into a warm environment from very cold conditions or vice versa allow it to become acclimatized before use d If mounting on an adapter check that the tool is screwed on securely e Keep the laser exit aperture clean to avoid meas urement errors f Although the tool is designed for the tough condi tions of jobsite use as with other optical and elec tronic instruments e g binoculars spectacles cameras it should be treated with care g Although the tool is protected to prevent entry of dampness it should be wiped dry each time before being put away in its transport container h Check the tool before using it for important meas uring work i Check the accuracy of the measurements several times during use of the tool j Use the mains adapter only for connecting to
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