TE 70-AVR (03)

About these operating instructions

• Warning! Read and understand all accompanying documentation, including but not limited to instructions, safety warnings, illustrations, and specifications provided with this product. Familiarize yourself with all the instructions, safety warnings, illustrations, specifications, components, and functions of the product before use. Failure to do so may result in electric shock, fire, and/or serious injury. Save all warnings and instructions for future reference.
  
• products are designed for professional users and only trained, authorized personnel are permitted to operate, service and maintain the products. This personnel must be specifically informed about the possible hazards. The product and its ancillary equipment can present hazards if used incorrectly by untrained personnel or if used not in accordance with the intended use.
  
• The accompanying documentation corresponds to the current state of the art at the time of printing. Please always check for the latest version on the product’s page on Hilti’s website. To do this, follow the link or scan the QR code in this documentation, marked with the symbol .
  
• Ensure that these operating instructions are with the product when it is given to other persons.
  

Explanation of symbols

Warnings

Symbols in the operating instructions

	Comply with the operating instructions
	Instructions for use and other useful information
	Dealing with recyclable materials
	Do not dispose of electric equipment and batteries as household waste

Symbols in illustrations

	These numbers refer to the illustrations at the beginning of these operating instructions.
	The numbers in illustrations refer to important work steps or to components important for the work steps. In the text, the corresponding numbers draw attention to these work steps or components, e.g. (3) .
	Item reference numbers are used in the overview illustration and refer to the numbers used in the key in the product overview section.
	This symbol is intended to draw your special attention to certain points for handling the product.

Product-dependent symbols

Symbols on the product

	Drilling with hammering action (hammer drilling)
	Chiseling
	Chisel positioning
	Protection class II (double-insulated)
	Rated speed under no load
	Revolutions per minute
	Revolutions per minute
	Diameter
	Alternating current
	The product supports wireless data transmission compatible with iOS and Android platforms.

General power tool safety warnings

• Keep work area clean and well lit. Cluttered or dark areas invite accidents.
  
• Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes.
  
• Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.
  

• 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.
  
• 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.
  
• Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
  
• Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock.
  
• 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.
  
• 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.
  

• 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.
  
• Use personal protective equipment. Always wear eye protection. Protective equipment such as a dust mask, non-skid safety shoes, hard hat or hearing protection used for appropriate conditions will reduce personal injuries.
  
• 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.
  
• Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury.
  
• Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.
  
• Dress properly. Do not wear loose clothing or jewellery. Keep your hair and clothing away from moving parts. Loose clothes, jewellery or long hair can be caught in moving parts.
  
• 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.
  
• Do not let familiarity gained from frequent use of tools allow you to become complacent and ignore tool safety principles. A careless action can cause severe injury within a fraction of a second.
  

• Do not force the power tool. Use the correct power tool for your application. The correct power tool will do the job better and safer at the rate for which it was designed.
  
• Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot be controlled with the switch is dangerous and must be repaired.
  
• Disconnect the plug from the power source and/or remove the battery pack, if detachable, from the power tool before making any adjustments, changing accessories, or storing power tools. Such preventive safety measures reduce the risk of starting the power tool accidentally.
  
• 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.
  
• Maintain power tools and accessories. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the power tool’s operation. If damaged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools.
  
• Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
  
• 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.
  
• Keep handles and grasping surfaces dry, clean and free from oil and grease. Slippery handles and grasping surfaces do not allow for safe handling and control of the tool in unexpected situations.
  

• 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.
  

Drill safety warnings

• Wear ear protectors when impact drilling. Exposure to noise can cause hearing loss.
  
• Use the auxiliary handle(s). Loss of control can cause personal injury.
  
• Hold the power tool by insulated gripping surfaces, when performing an operation where the cutting accessory or fasteners may contact hidden wiring or its own cord. Cutting accessory or fasteners contacting a "live" wire may make exposed metal parts of the power tool "live" and could give the operator an electric shock.
  

• Never operate at higher speed than the maximum speed rating of the drill bit. At higher speeds, the bit is likely to bend if allowed to rotate freely without contacting the workpiece, resulting in personal injury.
  
• Always start drilling at low speed and with the bit tip in contact with the workpiece. At higher speeds, the bit is likely to bend if allowed to rotate freely without contacting the workpiece, resulting in personal injury.
  
• Apply pressure only in direct line with the bit and do not apply excessive pressure. Bits can bend causing breakage or loss of control, resulting in personal injury.
  

• Switch the power tool on or off only when the mixing paddle is immersed in the material for mixing. Failure to do so can cause a loss of control with resultant risk of injury.
  

Additional safety instructions for rotary hammer drill

• Use the product and accessories only when they are in perfect working order.
  
• Never tamper with or modify the product or accessories in any way.
  
• Use auxiliary handles supplied with the product. Loss of control can cause personal injury.
  
• Apply appropriate safety measures at the opposite side of the workpiece in work that involves breaking through. Parts breaking away could fall out and / or fall down causing injury to other persons.
  
• Always hold the tool with both hands on the grips provided. Keep the grips clean and dry.
  
• Hold the product by the insulated gripping surfaces when performing work in which the accessory tool might come into contact with concealed wiring. If the accessory tool comes into contact with a live wire, metal parts of the power tool can also become live, resulting in an electric shock.
  
• Do not touch rotating parts – risk of injury!
  
• Wear eye protection, a hard hat and ear protection and suitable respiratory protection while the product is in use.
  
• Wear protective gloves when changing the accessory tool. Touching the accessory tool can result in cuts and burns.
  
• Wear eye protection. Flying fragments can injure the body and eyes.
  
• Dust produced by grinding, sanding, cutting and drilling can contain dangerous chemicals. Some examples are: lead or lead-based paints; brick, concrete and other masonry products, natural stone and other products containing silicates; certain types of wood, such as oak, beech and chemically treated wood; asbestos or materials that contain asbestos. Determine the exposure of the operator and bystanders by means of the hazard classification of the materials to be worked. Implement the necessary measures to restrict exposure to a safe level, for example by the use of a dust collection system or by the wearing of suitable respiratory protection. The general measures for reducing exposure include:
  
• working in an area that is well ventilated,
  
• avoidance of prolonged contact with dust,
  
• directing dust away from the face and body,
  
• wearing protective clothing and washing exposed areas of the skin with water and soap.
  
• Take frequent breaks and do physical exercises to improve the blood circulation in your fingers. High vibration during long periods of work can lead to disorders of the blood vessels and nervous system in the fingers, hands and wrists.
  

• Before beginning work, check the working area for concealed electric cables or gas and water pipes. External metal parts of the product could give you an electric shock or cause an explosion if you accidentally damage an electric cable or a gas or water pipe.
  

• Switch the product off immediately if the accessory tool jams. The product might twist off-line.
  
• Wait until the product has come to a complete stop before you lay it down.
  

Product overview

1. Dust cap
   
2. Tool holder
   
3. Accessory tool release
   
4. Function selector switch
   
5. Control switch lockbutton
   
6. Control switch
   
7. Grip
   
8. Service indicator
   
9. Supply cord
   
10. Side handle
    

Intended use

The product described is an electrically powered combihammer with pneumatic hammering mechanism. It is designed for drilling in concrete, masonry, wood and metal. The product can also be used for light- to medium-duty chiseling on masonry and surface finishing work on concrete.

• The tool may be operated only when connected to a power source providing a voltage and frequency in compliance with the information given on the type identification plate.
  

AVR option

Service indicator

Service indicator status

Items supplied

Using extension cords

• Use only extension cords of a type approved for the application and with conductors of adequate gauge (cross section). The power tool may otherwise suffer a drop in performance and the extension cord may overheat.
  
• Check the extension cord for damage at regular intervals.
  
• Replace damaged extension cords.
  
• When working outdoors, use only extension cords that are approved and correspondingly marked for this application.
  

Fitting the side handle

• Fit the side handle.
  

Fitting / removing the accessory tool

• Fit or remove the accessory tool, as applicable.
  

Drilling without hammer action

• Set the function selector switch to the “Hammer drilling” position .
  

Drilling with hammer action (hammer drilling)

• Set the function selector switch to the “Hammer drilling” position .
  

Chisel positioning

• Set the function selector switch to the “Chisel positioning” position .
  

Chiseling

• Set the function selector switch to the “Chiseling” position .
  

Control switch lock

• Press the control switch lock.
  

Troubleshooting

Trouble or fault	Possible cause	Action to be taken
Combihammer does not start.	Interruption in the electric supply.	Plug in another electric tool or appliance and check whether it works.
	The generator is in sleep mode.	Apply a load to the generator by connecting a second power consumer (e.g. worklight). Switch the tool off and then on again.
	The electronic restart interlock is activated after an interruption in the electric supply.	Switch the power tool off and then on again.
	The carbon brushes are worn.	Have checked, and if necessary replaced, by a trained electrical specialist.
No hammering action.	The power tool is too cold.	Bring the tip of the accessory tool into contact with the working surface, switch the power tool on and allow it to run. If necessary, repeat the procedure until the hammering mechanism begins to operate.
Combihammer does not achieve full power.	The extension cord is too long or the conductor cross-section is inadequate.	Use an extension cord of an approved length and / or of adequate conductor cross-section.
	The control switch is not fully pressed.	Press the control switch as far as it will go.
	The voltage provided by the electric supply is too low.	Connect the power tool to a different power source.
Drill bit does not rotate.	The function selector switch is not engaged or is in the "Chiseling" position or the "Chisel positioning" position .	With the motor at a standstill, set the function selector switch to the “Hammer drilling” position.
Drill bit is not released.	The chuck is not pulled back fully.	Pull the tool lock back as far as it will go and remove the accessory tool.
	The side handle is not fitted correctly.	Disengage the side handle and refit it correctly so that the clamping band and side handle engage in the recess.
The service indicator blinks red.	A fault has occurred in the tool.	Have the product repaired by Hilti Service.
The service indicator lights red.	The carbon brushes are worn.	Have checked, and if necessary replaced, by a trained electrical specialist.