HILTI WSR1250-PE User's Manual
Contents
1. Store idle tools out of reach of children and other untrained persons Tools are dangerous in the hands of untrained users Maintain tools with care Keep cutting tools sharp and clean Properly maintained tools with sharp cutting edges are less likely to bind and are easier to control Check for misalignment or binding of moving parts breakage of parts and any other condition that may affect the tools operation If damaged have the tool serviced before using Many acci dents are caused by poorly maintained tools Use only accessories that are recommended by the manufacturer for your model Accessories that may be suitable for one tool may become hazardous when used on another tool 6 Service Tool service must be performed only by qualified repair personnel Service or maintenance per formed by unqualified personnel could result in a risk of injury 3 Specific safety rules and symbols When servicing a tool use only identical replace ment parts Follow instructions in the Maintenance section of this manual Use of unauthorized parts or failure to follow Maintenance Instructions may create a risk of electric shock or injury 3 1 Basic information concerning safety In addition to the information relevant to safety given in each of the sections of these operating instructions the following points must be strictly observed at all times WARNING Read all safety precautions and instructions Failure to observe t2. When working always guide the tool away from the body o Lift the tool away from the workpiece only once the blade has come to a standstill e Do not lay the tool down before the blade has come to astandstill CAUTION e The saw blade becomes hot when used for long periods e There is arisk of burning if the blade is touched e Wear protective gloves 6 1 Switching on off 1 Plug the supply cord into the electric socket 2 Press the transport lock and then press the control switch 6 2 Stroke rate 6 2 1 Adjusting the stroke rate The recommended stroke rate can be selected by turn ing the stroke rate regulator When the control switch is pressed the tool will then run up to the pre selected speed The electronic speed control system maintains constant stroke rate even under load The recommended stroke rate settings and information concerning the correct choice of saw blade can be found in the product infor mation and in the corresponding table of applications 6 2 2 Recommended stroke rates 1 low stroke rate 6 high stroke rate Recommended stroke rate 5 6 Material to be cut Wood Wood with embedded nails 5 Interior finishing drywall 3 Plastic 3 Steel 2 Non ferrous metals 2 Aluminum 2 Stainless steel 1 wj A AIO The above settings are general guidelines intended to provide optimum cutting performance These also apply when the pipe cutting adapter accessory is used The optimu
3. if necessary The tool is not water or moisture proof Liquids running out may cause a short circuit in the tool resulting in an electric shock being received When cutting pipes hold the tool so that it is higher than the pipe being cut 3 3 General safety precautions IN e To ensure efficient and safe operation the contact shoe of the tool must be pressed against the work piece EI e Keep the tool especially its grip surfaces clean and free from oil and grease e Always hold the tool securely with both hands on the grips provided E Make sure to grip the tool and posi tion your hands and fingers so they will not contact or slip into the area of the blade clamp or saw blade e Switch on the tool only after it has been brought into position where the cut is to be made e Do not start the tool with the blade contacting the work surface e When cutting always guide the tool away from the body e Switch the tool off before transporting it e Always allow the tool to come to a complete stop before removing it from the workpiece e Never place your hands in front of or on the saw blade e Check the tool for possible damage Protective devices and any parts that may have suffered slight damage should be checked for correct operation and func tionality before further use of the electric tool Safety devices or other parts that are found to be damaged must be replaced or repaired properly by an autho rized repair worksh
4. it has engaged 8 Open the screw clamp to the maximum position 9 Place the adapter chain around the pipe locking the chain to the fitting NOTE The handle should be at a 45 angle 5 5 Fitting the side handle accessory 1 Unplug the supply cord from the electric socket 2 Remove the saw blade see 5 2 3 Place the adaptor around the front grip section from above and close the adaptor 4 Slide the side handle onto the adaptor from the front 5 Secure the side handle by turning the screw knob on the handle 5 6 Positioning the side handle accessory 1 Unplug the supply cord from the electric socket 2 Slacken the screw knob on the side handle 3 Bring the side handle into the desired position 4 Secure the side handle by turning the screw knob on the handle CG No 6 Operation CAUTION e The cutting edges of the saw blade are sharp e The cutting edges may present a risk of injury e Wear protective gloves e The sawing operation swirls up dust and wood chips into the air e The dust and wood chips may be harm ful to the eyes and respiratory system e Wear protective goggles and breath ing protection e Operation of the tool creates noise e Excessive noise may damage the hear ing e Wear ear protection NOTE e To ensure good cutting performance and ease the load on the tool use only saw blades that are in good con dition e Do not overload the tool WARNING e
5. moving parts Loose clothes jewelry or long hair can be caught in mov ing parts Avoid accidental starting Be sure switch is off before plugging in Carrying tools with your finger on the switch or plugging in tools that have the switch on invites accidents Remove adjusting keys or wrenches before turning the tool on A wrench or a key that is left attached to a rotating part of the tool may result in personal injury Do not overreach Keep proper footing and bal ance at all times Proper footing and balance enables better control of the tool in unexpected situ ations Use safety equipment Always wear eye protec tion Dust mask non skid safety shoes hard hat or hearing protection must be used for appropriate conditions 5 Tool Use and Care Use clamps or other practical way to secure and support the workpiece to a stable platform Hold ing the work by hand or against your body is unsta ble and may lead to loss of control Do not force tool Use the correct tool for your application The correct tool will do the job better and safer at the rate for which it is designed Do not use tool if the switch does not turn it on or off Any tool that cannot be controlled with the switch is dangerous and must be repaired Disconnect the plug from the power source before making any adjustments changing accessories or storing the tool Such preventive safety measur es reduce the risk of starting the tool accidentally
6. use only extension cords approved and correspondingly marked as suitable for outdoor use e Avoid using extension cords with multiple sockets and the simultaneous use of several electric tools con nected to one extension cord e Never operate the tool when it is dirty or wet Dust or dampness on the surface of the tool make it difficult to hold and under unfavorable conditions may lead to electric shocks Accordingly have the tool checked regularly at a Hilti service center if it is used frequently for cutting conductive materials e Hold tool by insulated gripping surfaces when per forming an operation where the cutting tool may con tact hidden wiring or its own cord Contact with a live wire will make exposed metal parts of the tool live and shock the operator N Ne A e The saw blade may become hot during use You should therefore wear protective gloves when changing saw blades e When using the pipe cutting adaptor accessory especially when cutting large diameter pipes apply only moderate pressure and select a suitable cutting speed in order to avoid overheating the tool e The cutting produced when sawing especially metal cuttings may be hot Wear suitable protective clothing 3 3 4 Dust e Wear respiratory protection when the work causes dust e Before beginning work find out the hazard class of the dust produced by the work Use only an industri al vacuum cleaner with an officially approved p
7. If the plug does not fit fully in the outlet reverse the plug If it still does not fit contact a qualified electrician to install a polarized outlet Do not change the plug in any way Double Insulation 2 eliminates the need for the three wire grounded power cord and grounded power Supply system Applicable only to Class II tools Avoid body contact with grounded surfaces such as pipes radiators ranges and refrigerators There is an increased risk of electric shock if your body is grounded Don t expose power tools to rain or wet condi tions Water entering a power tool will increase the risk of electric shock Do not abuse the cord Never use the cord to carry the tools or pull the plug from an outlet Keep cord away from heat oil sharp edges or moving parts Replace damaged cords immediately Damaged cords increase the risk of electric shock When operating a power tool outside use an out door extension cord marked W A or W These cords are rated for outdoor use and reduce the risk of electric shock 4 Personal Safety Stay alert watch what you are doing and use common sense when operating a power tool Do not use a tool while tired or under the influence of drugs alcohol or medication A moment of inat tention while operating power tools may result in serious personal injury Dress properly Do not wear loose clothing or jewelry Contain long hair Keep your hair cloth 2 ing and gloves away from
8. WSR 900 WSR 900 PE Hilti Corporation WSR 12 50 PE FL 9494 Schaan WS R 1400 PE Tel 423 234 21 11 Fax 423 234 29 65 Operating instructions www hilti com Mode d emploi Manual de instrucciones 23 T 37 6750 376750 C Hilti registered trademark of Hilti Corp Schaan W 2827 0704 5 Pos 3 1 Printed in Liechtenstein 2004 Right of technical and programme changes reserved S E amp O min 25mm min 40mm mm WSR 900 WSR 900 PE This product is UL listed and CSA certified to US and Canadien safety standards Ce produit est homologu UL et certifi CSA conforme aux normes de s curit am ricaines et candiennes Producto homologado segun normas de seguridad americanas y canadienses Produto homologado de accordo com as normas de seguran a americanas e canadianas AB us c D us WSR 1250 PE WSR 1400 PE UL listed to US and Canadien safety standards Homologu UL conforme aux normes de s curit am ricaines et candiennes Producto homologado seg n normas de seguridad americanas y canadienses Produto homologado de accordo com as normas de seguran a americanas e canadianas OWO cWus WSR 900 WSR900 PE WSR1250 PE WSR1400 PE reciprocating saw It is essential that the operating instructions ABRE Codie Wed are read before the tool is operated for the first time Always keep these operating instructions together with the tool Ensure that the operating instructions
9. are with the tool when it is given to other persons Operating controls and parts El 1 Blade clamp blade holder 2 Orbital action selector switch only WSR 900 PE WSR 1250 PE WSR 1400 PE 3 Stroke rate regulator only WSR 900 WSR 900 PE WSR 1400 PE 4 Transport lock 5 Control switch 6 Type plate Motor Gearing section 9 Front end grip area hand guard Lockbutton for adjusting the contact shoe GD Contact shoe 2 Saw blade insert tool Contents Page 1 General information 1 2 General safety rules 2 3 Specific safety rules and symbols 3 4 Functional description 5 5 Assembly 6 6 Operation 7 7 Care and maintenance 8 8 Blades and accessories 8 9 Troubleshooting 9 10 Disposal 9 11 Warranty 10 1 1 Signal words and their meaning WARNING The word WARNING is used to draw attention to a poten tially dangerous situation which could lead to severe personal injury or death CAUTION Used to draw attention to a potentially dangerous situa tion which could lead to minor personal injury or dam age to the equipment or other property NOTE Used to draw attention to an instruction or other useful information 1 2 Pictograms Warning signs A N i Warning Warning General warning electricity hot surface Obligation signs Symbols p O E N j Y N A N A co Wear Wear Wear Wear Read the eye ear protective breathing operating protection protection gloves protect
10. bly Low stroke rate selected Set the stroke rate regulator to the setting recommended for the material to be cut see section Assembly Control switch not pressed fully Press the control switch as far as it will go No orbital action Orbital action selector switch not Set the orbital action selector switch to only WSR 900 PE set to gt S The orbital action can be felt only WSR 1250 PE when sawing WSR 1400 PE Saw blade cannot be Locking sleeve not turned as far as Turn the locking sleeve as far as it will go removed from the blade it will go and remove the saw blade clamp Contact shoe or pipe Obstructed by blade Remove the saw blade see 5 2 and then clamp cannot be removed remove the contact shoe frome the tool Lockbutton is not fully pressed Press the lockbutton fully and remove the blade 10 Disposal Most of the materials from which Hilti electric tools 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 electric tools for recycling Please ask your Hilti customer service department or Hilti representa tive for further information Should you wish to return the electric tool yourself to a disposal facility for recycling proceed as follows Dismantle the electric tool as far as possible without the need for special tools Use absorbent paper to wipe oily parts
11. clean and to collect any grease that runs out total quantity approx 50 ml This paper should also be disposed of correctly On no account should oil or grease be allowed to enter the waste water system or to find its way into the ground The individual parts should be separated as follows Part assembly Main material Recycling Toolbox Plastic Plastics recycling Gear housing Aluminium Scrap metal Grip Plastic Plastics recycling Motor housing Plastic Plastics recycling Grip cover Plastic Plastics recycling Fan Plastic Plastics recycling Motor rotor and stator Steel and copper Scrap metal Supply cord Copper elastomer Scrap metal Gearing parts Steel Scrap metal Screws small parts Steel Scrap metal 11 Warranty 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 all warranty claims are made within 12 months from the date of the sale invoice date and the technical system is main tained This means that only original Hilti consum ables components and spare paris may be used in the tool This warranty provides the free of charge repair or replacement of defective parts only Parts requiring repair or replacement as a result of normal wear and tear are not covered by this warranty Under no circumstances will Hilti be obligated for dir
12. ect indirect incidental or consequential dam ages losses or expenses in connection with or by reason of the use of or inability to use the tool for any purpose Hilti specifically excludes the implied warranties of merchantability and fitness for a par ticular purpose For repair or replacement send tool and or related parts immediately upon discovery of the defect to the address of the local Hilti marketing organization pro vided 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. eral con struction renovation and conversion work metal con struction plumbing heating air conditioning instal lation trades in workshops and on construction sites e The tool may be used for cutting wood wood like materials metals and plastics e The tool must be used in a dry environment e The tool may be powered only by an electric supply voltage in compliance with the information given on the type plate e The tool is designed for two handed operation e Use only the blades and accessories listed in the oper ating instructions A N N e Do not use the tool to cut bricks concrete cellular concrete natural stone or tiles e Use the tool within its intended cutting performance range and with suitable blades do not use blades of the wrong size or reciprocating saw blades not equipped with a connection end e Cutting materials containing asbestos is not permissible 4 2 Use of the WSR 1250 PE WSR 1400 PE as directed e Typical working environments include general con struction renovation and conversion work metal con struction plumbing heating air conditioning instal Technical data lation trades rescue services public authorities farm ing and forestry in workshops and on construction sites e The tool may be used for cutting wood wood like materials metals plastics bricks cellular concrete and tiles e The tool must be used in a dry environment e The tool may be powered o
14. he following safety precautions and instruc tions may lead to electric shock fire and or serious injury 3 2 Take the necessary precautions to make the workplace safe AR e Ensure that the workplace is well ventilated e Keep the working area tidy Objects which could cause injury should be removed from the working area Untidi ness at the workplace may lead to accidents e Keep the area above and below the cutting line free of obstacles e Wear suitable working clothing Wear a hair net if you have long hair e Do not permit other persons to touch the electric tool or the extension cord e Avoid unusual body positions Work from a secure stance and stay in balance at all times e To avoid tripping and falling when working always lead the supply cord and extension cord away to the rear e Concealed electric cables or gas and water pipes pre sent a serious hazard if damaged while you are work ing Accordingly check the area in which you are work ing beforehand e g using a metal detector e Unknown base materials should be examined in order to avoid personal injury or the possibility of cutting into pipes or cables Use the right blade for the mate rial being cut e Do not cut unless there is proper clearance beyond the workpiece being cut The blade may cause the tool to kick back if it strikes a hidden object e Before cutting pipes always first ensure that the pipes contain no liquids Empty the pipes
15. ion instructions before use EE 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 oper ating instructions In these operating instructions the WSR 900 WSR 900 PE WSR 1250 PE WSR 1400 PE reciprocating saw is referred to as the tool Location of identification data on the tool The type designation and serial number can be found on the rating plate on the 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 General safety rules 1 WARNING Read and understand all instructions Failure to follow all instructions listed below may result in electric shock fire and or serious personal injury SAVE THESE INSTRUCTIONS 2 Work Area Keep your work area clean and well lit Cluttered benches and dark areas invite accidents Do not operate power tools in explosive atmos pheres such as in the presence of flammable liquids gases or dust Power tools create sparks which may ignite the dust or fumes Keep bystanders children and visitors away while operating a power tool Distractions can cause you to lose control 3 Electrical Safety Double Insulated tools are equipped with a polarized plug one blade is wider than the other This plug will fit in a polarized outlet only one way
16. irection and hold it in this position 4 Push the saw blade into the blade clamp 5 Release the locking sleeve and allow it to move back It should be heard to engage 6 Check that the clamp has engaged by pulling on the blade 5 2 Removing the saw blade amp 1 Unplug the supply cord from the electric socket 2 Turn the blade clamp locking sleeve in a counter clockwise direction and hold it in this position voltage 110 120 V 3 Pull the blade out of the clamp toward the front of the tool 4 Release the locking sleeve 5 3 Adjusting the contact shoe EJ The contact shoe can be adjusted to provide optimum use of the blade length and to improve access in corners 1 Unplug the supply cord from the electric socket 2 Remove the saw blade see 5 2 3 Press the contact shoe lockbutton and hold it in this position 4 Slide the contact shoe forward or back into the desired position 5 Release the lockbutton 6 Pull on the contact shoe to check that it has engaged 5 4 Using the pipe cutting adaptor accessory Unplug the supply cord from the electric socket Remove the saw blade see 5 2 Press the contact shoe lockbutton and hold it in this position 4 Pull the contact shoe away from the tool toward the front 5 Push the pipe cutting adaptor into the tool from the front until it is in the desired position 6 Release the lockbutton 7 Pull on the pipe cutting adaptor to check that
17. m setting may differ from these recommenda tions depending on the saw blade used the electric sup ply voltage and on how the tool is used Setting the wrong stroke rate may cause the saw blade to wear more quickly and could damage the tool 6 3 Orbital action only WSR 900 PE WSR 1250 PE WSR 1400 PE EJ Use of the orbital action can increase cutting perfor mance in certain soft materials such as wood materials The orbital action can be switched on or off by moving the orbital action selector switch as far as it will go in each position Move the switch only when the motor has stopped 6 3 1 Orbital action off gt ROR Orbital action off 6 3 2 Orbital action on Orbital action on 6 4 Plunge sawing The plunge sawing technique should be used only on soft materials and when the orbital action is switched off A little practice is required in order to be able to plunge the blade into the material while the tool is run ning and thus make cut outs without first drilling a hole Plunge sawing is possible only with short saw blades Plunge cuts may be started with the tool in one of two different positions in the normal position or in the reversed position 1 Hold the tool with the front edge of the contact shoe against the workpiece 7 Care and maintenance 2 Press the transport lock and then press the control switch 3 Press the tool firmly against the workpiece and begin the pl
18. nly by an electric supply voltage in compliance with the information given on the type plate e The tool is designed for two handed operation e Use only the blades and accessories listed in the oper ating instructions ARM e Do not use the tool to cut concrete or natural stone e Use the tool within its intended cutting performance range and with suitable blades do not use blades of the wrong size or reciprocating saw blades not equipped with a 2 connection end e Cutting materials containing asbestos is not permis sible 4 3 The items supplied include Reciprocating saw and saw blade Operating instructions Toolbox See figure EH and the explanations of operating controls and components on page 1 Tool WSR 900 Nominal power rating 900 W Nominal voltage Nominal Current input Mains frequency 50 60 Hz Weight of tool 6 28 lbs 2 85 kg Dimensions 17 4x3 5x8 3 in 17 4x3 5x8 3 in LxBxH 442x88x211 mm Stroke rate 0 2700 min Stroke 1 in 32 mm WSR 900 PE WSR1250 PE WSR 1400 PE 900 W 1250 W 1400 W 120 V 8 5A 120 V 8 5A 120V 12A 120V 13A 9 9 Ibs 4 5 kg 4x3 5x8 3 i 22 6x4x7 4 in 442x88x211 mm 493x101x180 mm 574x101x188 mm 0 2700 min 1 4 in 32 mm Stroke rate regulation Constant speed elec tronics with variable stroke rate stroke rate regulator with 6 pos Blade clamp Orbital action Double insulated Right of technical changes re
19. op unless otherwise indicated in the operating instructions e Always use saw blades of adequate length To help avoid kick back while sawing the blade must always project at least 40 mm 1 5 in beyond the workpiece during the stroke cycle EM u e Ensure that the saw blades used are equipped with the correct connection end system and that they are prop erly fitted and secured in the blade clamp 3 3 2 Electrical A ie en o Protect yourself against electric shock Avoid body contact with earthed grounded objects e g pipes and radiators etc e Check the condition of the tool s supply cord at reg ular intervals The supply cord should be replaced by a trained electrical specialist if damage is found Also regularly check the condition of extension cords and replace these if damage is found e Do not touch the supply cord in the event of it suffer ing damage while working Disconnect the supply cord plug from the power supply e The tool should be repaired only by a trained electri cal specialist Hilti service centre using original Hilti spare parts Failure to observe this point my result in a risk of accident to the user e Do not use the supply cord for purposes for which it is not intended e Never carry the tool by the power supply cord e Do not pull the plug out of the socket by pulling the supply cord e Do not expose the supply cord to heat oil or sharp edges e When working outdoors
20. rotec tion classification in compliance with your local dust control regulations for work with the tool e Proposition 65 warning This product contains or pro duces an exposure to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm 3 4 Requirements to be met by users e The tool is intended for professional use e The tool may be operated serviced and repaired only by authorized trained personnel This personnel must be informed of any special hazards that may be encoun tered e Take breaks between working and do exercises your fingers to relax the muscles and improve the blood circulation in your fingers 3 5 Personal protective equipment The user and any other persons in the vicinity must wear Suitable eye protection Ear protection and protective gloves should be worn as conditions warrant They must also wear breathing protection if no dust removal sys tem is used y Wear Sa Wear eye protective breathing protection protection gloves protection 3 6 Protective devices Never use the tool without the hand guard fitted Symbols used on the tool V volts Ny no load speed alternating current min revolutions per minute Hz hertz diameter A amperes double insulated 4 Functional description 4 1 Use of the WSR 900 WSR 900 PE as directed e Typical working environments include rescue services public authorities farming and forestry gen
21. served Constant speed elec tronics with variable stroke rate stroke rate stroke rate ulator with 6 pos reg Keyless for standard blades on off only WSR 900 PE WSR 1250 PE WSR 1400 PE Protection class II double insulated El Constant speed elec tronics with variable Constant speed elec tronics with variable stroke rate stroke rate ulator with 6 pos 5 Assembly e NOTE The electric supply voltage must comply with the infor mation on the type plate CAUTION e The cutting edges of the saw blade are sharp e The cutting edges may present a risk of injury e Moving parts may present a risk of injury e Wear protective gloves If extension cords are used Use only extension cords of atype approved for the intended purpose and of ade quate cross section Failure to observe this point may result in reduced performance and may cause the cord to overheat Replace damaged extension cords Use only correspondingly marked and approved extension cords for working outdoors Recommended minimum cross sections and max cord lengths Conductor cross section 1 5mm 2 5mm 14 50m 10m 5 1 Fitting the saw blade El 1 Unplug the supply cord from the electric socket 2 Check that the connection end of the blade is clean The blade clamp should also be kept clean Use only saw blades with 1 2 connection ends iW 3 Turn the blade clamp locking sleeve in a counter clockwise d
22. team pressure cleaning equipment or running water for cleaning This may negatively affect the electrical safety of the tool Always keep the grip surfaces of the tool free from oil and grease Do not use cleaning agents which contain silicone 7 3 Maintenance Check all external parts of the tool for damage at regular intervals and check that all controls operate faultlessly Do not operate the tool if parts are damaged or when the controls do not function faultlessly If necessary your electric tool should be repaired at a Hilti repair center Repairs to the electrical section of the tool may be car ried out only by trained electrical specialists 7 4 Checks after care and maintenance After care and maintenance check that the hand guard and contact shoe are fitted and that they function fault lessly 8 Blades and accessories Saw blades Pipe cutting adaptor Side handle Side handle adaptor 9 Troubleshooting Fault Possible cause Remedy The tool doesn t start Fault in mains supply Plug in another electric appliance and check whether it works Supply cord or plug defective The cord should be checked and if neces EX sary replaced by an electrical specialist Control switch defective The switch should be checked and if neces sary replaced by an electrical specialist The tool does not achieve Extension cord with inadequate cross Use an extension cord with adequate cross full power section used section See Assem
23. unge movement by reducing the angle of the tool contact shoe to the workpiece It is important to ensure that the tool is running before the blade is brought into contact with the workpiece The tool may otherwise stall or kick back 4 Once the blade has passed through the workpiece bring the tool into the normal working position the entire surface of the shoe in contact and then con tinue sawing along the line Unplug the supply cord from the mains socket 7 1 Care of blades Clean off dirt and dust deposits and protect your blades from corrosion by wiping them from time to time with an oil soaked rag 7 2 Care of the tool e Keep the blade clamp clean e The tool was lubricated adequately when it was man ufactured After long periods of heavy use it is rec ommended that the tool is inspected at a Hilti repair center This will increase the life expectancy of the tool and avoid unnecessary repair costs e Repairs to the electrical section of the tool may be car ried out only by a trained electrical specialist The outer casing of the tool is made from impact resis tant plastic Sections of the grip are made from an elas tomer material Never operate the 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 tool Clean the outside of the tool at regular intervals using a slightly damp cloth Do not use a spray s
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