Hilti 3497777 Use and Care Manual
Contents
1. 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 dust collection can reduce dust related hazards 6 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 preven tive 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 instructions 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 breakag2. i 1 y N SD4500 A18 Operating instructions Mode d emploi Manual de instrucciones Manual de instrucoes O 2 1 G 9 D This Product is Certified Ce produit est homologu Producto homologado por Este produto est registrado c us ORIGINAL OPERATING INSTRUCTIONS SD 4500 A18 Drywall screwdriver 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 1 2 Description 2 3 Insert tools accessories 4 4 Technical data 4 5 Spare parts 5 6 Safety instructions 5 7 Before use 8 8 Operation 9 9 Care and maintenance 10 10 Troubleshooting 11 11 Disposal 12 12 Manufacturer s warranty tools 13 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 EN These numbers refer to the corresponding illustra tions The illustrations can be found o
3. 9 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 Remedy The battery must be heard to engage with a double click or respectively needs to be charged Remove the battery from the power tool and contact Hilti Service Release the control switch reduce the load on the power tool and then press the switch again Push the forward reverse switch to the left or right Push the forward reverse switch to the left Fault Possible cause Remedy Running speed suddenly The battery is discharged Change the battery and recharge the drops considerably discharged battery Speed cannot be controlled by The control switch is defective Contact Hilti Service the switch it simply switches on off The battery doesn t engage The retaining lugs on the battery are Clean the retaining lugs and check with an audible double click dirty that the battery engages securely Contact Hilti Service if the problem persists The power tool or the battery Electrical fault Switch the power tool off imme gets very warm diately remove the battery and contact Hilti Service The power tool has been overloaded Use the right power tool for the job application limits exceeded don t use a low powered tool for heavy work 11 Disposal CAUTION Improper disposal of the equipment
4. itself off and all 4 LEDs on the battery blink The control switch can t be pressed i e the switch is locked The power tool runs but the screw cannot be driven activated engaged The battery is discharged or fitted The overload cut out has been The forward reverse switch is in the middle position safety lock The forward reverse switch is set to the wrong direction of rotation 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 9 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
5. registered trademark of Hilti Corp Schaan W 3656 0309 00 Pos 3 1 Printed in Liechtenstein 2009 400172 A Right of technical and programme changes reserved S E amp O
6. wash exposed areas with soap and water Allowing dust to get into your mouth eyes orto remain on your skin may promote absorption of harmful chemicals a N j n Check that the power tool is placed in a secure position when it is laid down especially when used with the magazine and or extension 6 2 2 Power tool use and care Check that the insert tools used are compatible with the chuck system and that they are secured in the chuck correctly 6 2 3 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 6 2 4 Battery tool use and care a Do not expose batteries to high temperatures or fire This presents a risk of explosion b Batteries must not be opened or dismantled squashed heated to temperatures over 100 C or incinerated A risk of fire explosion or in jury through contact with caustic substances may otherwise result c 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 d Observe the special instructions applicable to the transport storage and us
7. bserved Do not use the power tool where there is a risk of fire or explosion Modification of the power tool or tampering with its parts is not permissible The working environment may be as follows construction site workshop renovation conversion or new construction 2 2 Main applications Application Screw type Drywall board to metal track framing lt 0 88 mm 20 ga Drywall screw with needle point type S DS01 Drywall board to metal track framing lt 2 25 mm 16 25 ga Drywall screw with drill point COS type S DD01 Metal track to metal track max thickness of part fastened Drywall screws with drill point types 2 5 mm 13 12 ga S DD02 S DD03 and S DD08 Fastening drywall board to timber Drywall screw with needle point type S DS03 Gypsum fiber board to metal track 0 88 mm 20 ga and Drywall screws with needle point types timber framing S DS14 and S DS10 NOTE The power tool can also be used together with the SMD 57 magazine and the appropriate collated screws for the applications listed above Please observe the operating instructions for the applicable drywall screw magazine 2 3 Chuck 1 4 bit holder 2 4 Switches Control switch for smooth speed control Lockbutton for sustained operation Forward reverse switch 2 5 Lubrication Grease lubrication 2 6 Grips Vibration absorbing grip in line grip 2 7 The items supplied include toolbox versions 1 Power tool Depth gauge Bit Bi
8. e of Li ion batteries e 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 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 6 2 5 Work area Ensure that the workplace is well ventilated Ex posure to dust at a poorly ventilated workplace may result in damage to the health The user and any other persons in the vicinity must wear suitable eye protection a hard hat protective gloves and breathing protection while the power tool is in use 7 Before use 7 1 Battery use and care NOTE Battery performance drops at low temperatures Never use the battery until the cells become fully discharged Change to the second battery as soon as a drop in performance is noticed Recharge the battery immediately 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 7 2 Charging the battery DANGER Use only the Hilti ba
9. e 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 a g 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 6 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 b Use power tools only with specifically designated battery packs Use of any other battery packs may create a risk of injury and fire c When battery pack is not in use keep it away from other metal objects like paper clips coins keys nails screws or other small metal objects that can make a connection from one terminal to another Shorting the battery terminals together may cause burns or a fire 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
10. er When the battery is at rest not in use its charge status is indicated by the four LEDs on the battery for three seconds after pressing one of the battery release buttons 8 11 Belt hook CAUTION Check that the belt hook is fitted securely before beginning work 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 used 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 8 12 Universal hook CAUTION Check that the universal hook is fitted securely Use the universal hook only when required Lay the power tool down in a secure place when it is no longer in use The universal hook can be used to attach the power tool to the operator s belt or to other objects when not in use The universal hook can be removed from the power tool if not required To do this release the two screws that secure the universal hook to the power tool CAUTION Before beginning cleaning remove the battery from the power tool in order to prevent unintentional starting 9 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 9 2 Care of the power tool CAUTION Keep the power tool especially its grip su
11. from the battery may cause irritation or burns 6 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 of the power tool is maintained 6 2 Additional safety rules 6 2 1 Personal safety a Hold power tool by insulated gripping surfaces only when performing an operation where the fastener may contact hidden wiring Fasteners contacting a live wire may make exposed metal parts of the power tool live and shock the oper ator b It is recommended that ear protectors are worn Exposure to noise can cause hearing loss c Keep the power tool especially its grip surfaces clean and free from oil and grease Do not use cleaning agents which contain silicone d Improve the blood circulation in your fingers by relaxing your hands and exercising your fingers during breaks between working e 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 f Activate the safety lock forward reverse switch in the middle position before storing or trans porting the power tool g Use the right power tool for the job Do not use the power tool for purposes for which it was not intended Use it only as directed and when in faultless condition h Avoid unintentional starting Never carry the power tool
12. he chuck features a standardized 1 4 hex socket for insert tools bits bit holder bits for use with screw magazines 1 Pull the depth gauge away from the power tool releasing the click connection The bit holder is then exposed and can be changed 2 Push the chuck toward the power tool turn it slightly and hold it securely 3 Usethe other hand to remove the bit holder 8 4 Safe operation WARNING Do not grip the power tool by the depth gauge or bit holder A screw coming into contact with a concealed electric cable may result in electric shock 8 5 Switching on off The speed of the power tool can be controlled smoothly increased from zero to maximum by pressing the control switch gradually 8 6 Power tool overloading and overheating indicator NOTE The power tool is equipped with an electronic protec tion 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 8 7 Lockbutton for sustained operation NOTE The lockbutton for sustained operation allows the motor to run continuously without need for constant pressure on the control switch 8 7 1 Switching on in sustained operating mode El 1 Press the control switch fully 2 While maintaining pressure on the control sw
13. itch press the lockbutton and then release the control switch 8 7 2 Switching off after sustained operation Press the control switch The lockbutton returns to its original position 8 8 Power tool depth gauge interface El 1 Pull the depth gauge away from the power tool releasing the click connection 2 Pull the depth gauge forward away from the power tool With the drive spindle exposed in this way the fol lowing operations can be carried out Removing a previously driven screw using reverse rotation changing the bit holder changing to magazine operation with the SMD 57 or redriving a screw Read the operating instructions for the maga zine for information about changing to magazine operation 6 9 Removing a previously driven screw 1 Remove the depth gauge or the magazine by pulling it forward away from the power tool 2 Set the forward reverse switch to the reverse rotation position 3 he screw can then be removed 8 10 Reading the charge status LED display on Li ion batteries NOTE The charge status cannot be indicated while the power tool is in operation If LED 1 blinks this simply indicates that the battery is either fully discharged or too hot for use temperature above 80 C 9 Gare and maintenance 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 oper ating instructions for the charg
14. 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 Batteries Hilti Li ion batteries contain lithium ion cells Both you and Hilti bear responsibility for the recycling of worn out batteries in keeping with environmental protection requirements Do not throw worn out batteries into household waste a fire or water 12 12 Manufacturer s warranty tools Hilti warrants that the tool supplied is free
15. n 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 SD 4500 A18 drywall screwdriver Parts operating controls and indicators EN 1 Control switch with electronic speed control 2 Forward reverse switch 3 Lockbutton for sustained operation 4 Depth gauge 5 Power tool accessory interface click connec tion 6 Chuck bit holder 7 Bit holder Air exit 9 Belt hook Grip 1 Battery release buttons 12 Motor cooling air intake 13 Universal hook 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 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 Obligation signs a d Wear Wear eye ATE reen ie Hilti representative or service department gloves Type Symbols LAY V Generation 01 E Serial no Read the Return waste Volts Direct current operating material for instructions recycling before use Rated speed Revolutions Diameter under no load per minute 2 Desc
16. 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 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 13 u ug Hilti Corporation LI 9494 Schaan Tel 423 234 21 11 Fax 423 234 2965 www hilti com Hilti
17. ower 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 f If operating a power tool in a damp location is unavoidable use a residual current device RCD protected supply Use of an RCD reduces the risk of electric shock 6 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 al 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 wrench or a key left attached to a rotating part of the power tool may result in personal injury
18. rfaces 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 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 spray steam pressure cleaning equipment or running water for cleaning This may negatively affect the electrical safety of the power tool 9 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 further battery discharge will be stopped automatically 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 with NiCd or NiMH batteries is not necessary Interruption of the charging procedure has no neg ative effect on battery life 10 Troubleshooting Fault Possible cause The power tool doesn t run incorrectly Electrical fault The power tool switches
19. ription 2 1 Use of the product as directed The SD 4500 A18 is a hand held cordless drywall screwdriver with automatic clutch Drywall screws with a length of up to 55 mm and a diameter of up to 4 2 mm can be used Do not use other types of screws intended for heavy duty applications For optimum handling we recommend that the power tool is gripped in line with the motor The air required for motor cooling is drawn in through the ventilation slots and blown out of the tool through the air exit The power tool is suitable for use by right or left handed persons An ergonomically designed grip with synthetic rubber covering provides a comfortable secure hold and makes the power tool less tiring to use 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 Observe the information printed in the operating instructions concerning operation care and maintenance To avoid the risk of injury use only genuine Hilti accessories and insert tools Do not use the battery as a power source for other unspecified appliances Working on materials hazardous to the health e g asbestos is not permissible Nationally applicable industrial safety regulations must be o
20. structions 6 1 General power tool safety warnings WARNING Read all safety warnings and all instruc tions Failure to follow the warnings and instructions may result in electric shock fire and or serious in jury 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 6 1 1 Work area safety a Keep work area clean and well lit Cluttered or dark areas invite accidents 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 6 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 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 p
21. t holder B 18 2 6 Li ion battery Charger for Li ion batteries Operating instructions Ro po a 2 8 The items supplied include cardboard box versions 1 Power tool 1 Depth gauge 1 Bit 1 Bitholder 1 Operating instructions 2 9 Li ion battery charge status LEDs light constantly LEDs blink Charge status C LED 1 2 3 4 AA C 2 75 9o LED 12 3 EA LED 12 A EXT 8096 LED 1 EEUU C 103 3 Insert tools accessories Depth gauge S DG D 11x75 for the 75mm 3 bit holder Bit holder S BH 75M Magazine SMD 57 Extension SME extension for working on ceilings Charger for Li ion batteries C 4 36 Charger for Li ion batteries C 4 36 ACS Charger for Li ion batteries C 4 36 ACS TPS Battery B 18 2 6 Li ion Hilti toolbox Bit S B PH2 4 Technical data Right of technical changes reserved Power tool SD 4500 A18 Rated voltage 21 6 V Weight 2 1 kg 4 6 Ib Dimensions L x W x H 253 mm 9 96 x 99 mm 3 9 x 235 mm 9 25 Rated speed under no load 0 4 200 min Max torque 9 5 Nm 84 0 in Ibs Chuck Hex socket 1 4 Battery B 18 2 6 Li ion Rated voltage 21 6V Capacity 2 6 Ah Energy content 56 16 Wh I Battery B 18 2 6 Li ion Weight 0 8 kg 1 8 Ib Temperature monitoring Yes Type of cell Lithium ion No of cells 12 5 Spare parts Depth gauge S DG D 11 x 50 406292 Bit holder S BH 50M 257257 SD 4500 A18 belt hook SD A BH 406293 SD 4500 A18 universal hook SD A UH 406294 6 Safety in
22. tteries and Hilti chargers listed under Accessories 7 2 1 Charging a new battery for the first time A new battery must be charged correctly for the first time before use This will ensure that the cells form correctly Incorrect initial charging may have a permanent negative effect on battery capacity Please refer to the applicable battery chargers operating instructions for information about initial charging 1 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 7 3 Fitting the battery El 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 yo
23. urself or others Check that the battery is seated securely in the power tool 7 4 Removing the battery El 1 Press both battery release buttons 2 Pull the battery out of the power tool toward the rear 8 Operation CAUTION Wear protective gloves when changing insert tools as the insert tools get hot during use 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 Check that the accessories used are fitted securely 8 1 Setting forward or reverse rotation El 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 left when the power tool is held in the working direction to select forward rotation Push the forward reverse switch to the right when the power tool is held in the working direction to select reverse rotation 8 2 Changing bits 1 Pull the depth gauge away from the power tool releasing the click connection 2 Pull the bit away from the power tool Fit the new bit 4 Refit the depth gauge to the power tool w 8 3 Changing tools bit holder magazine bit E NOTE T
24. with your finger on the on off switch Remove the battery from the power tool during work breaks before carrying out maintenance before changing cutting tools and before trans porting the power tool Check that the belt hook is fitted securely before beginning work Do not carry the tool by the depth gauge The depth gauge may pull off unexpectedly k Children must be instructed not to play with the appliance I The appliance is not intended for use by chil dren by debilitated persons or those who have received no instruction or training m WARNING Some dust created by grinding sand ing cutting and drilling contains chemicals known to cause cancer birth defects infertil ity or other reproductive harm or serious and permanent respiratory or other injury Some ex amples of these chemicals are lead from lead based paints crystalline silica from bricks con crete 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 chemi cals the operator and bystanders should work in a well ventilated area work with approved safety equipment such as respiratory protection appropriate 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
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