TE 800
TE 800-AVR

About these operating instructions

• Read these operating instructions before the product is used or operated for the first time. This is a prerequisite for safe, trouble-free handling and use of the product.
  
• Observe the safety instructions and warnings in these operating instructions and on the product.
  
• Always keep the operating instructions with the product and make sure that the product is accompanied by these operating instructions only, when the product is given to other persons.
  

Explanation of symbols used

Warnings

Warnings alert persons to hazards that occur when handling or using the product. The following signal words are used:

Symbols in the documentation

The following symbols are used in this document:

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

Symbols in the illustrations

The following symbols are used in illustrations:

	These numbers refer to the corresponding illustrations found at the beginning of these operating instructions
	The numbering reflects the sequence of operations shown in the illustrations and may deviate from the steps described in the text
	Item reference numbers are used in the overview illustrations and refer to the numbers used in the product overview section
	This symbol is intended to draw special attention to certain points when handling the product.

Product-dependent symbols

Symbols on the product

The following symbols are used on the product:

	Service indicator
	Power selector

Product information

Hilti products are designed for professional use and may be operated, serviced and maintained only by trained, authorized personnel. 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 type designation and serial number are printed on the rating plate.

• Write down the serial number in the table below. You will be required to state the product details when contacting Hilti Service or your local Hilti organization to inquire about the product.
  Product information

  Breaker	TE 800-AVR
  Generation	01
  Serial no.

Declaration of conformity

We declare, on our sole responsibility, that the product described here complies with the applicable directives and standards. A copy of the declaration of conformity can be found at the end of this documentation.
The technical documentation is filed here:
Hilti Entwicklungsgesellschaft mbH | Tool Certification | Hiltistrasse 6 | 86916 Kaufering, Germany

General power tool safety warnings

WARNING
Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.
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.
Work area safety

• 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.
  

Electrical safety

• 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.
  

Personal safety

• 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 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, clothing and gloves 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.
  

Power tool use and care

• 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 the battery pack 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. 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.
  

Service

• 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.
  

Hammer safety warnings

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

Additional safety instructions for breakers

Personal safety

• 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.
  
• When chiseling into ceilings, walls and floors, always make sure that you have a safe and firm stance. A sudden break-through can affect your balance!
  
• 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.
  
• You and the other persons in the vicinity must wear suitable eye protection, a hard hat, ear protection, protective gloves and light 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.
  

Electrical safety

• 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.
  

Power tool use and care

• Wait until the product has come to a complete stop before you lay it down.
  

Product overview

1. Chuck and chisel position adjustment
   
2. Cooling slots
   
3. Clamping band
   
4. Air vents
   
5. Side handle
   
6. On / off switch
   
7. Grip
   
8. Display
   
9. Service indicator
   
10. Power level indicator
    
11. Supply cord
    
12. Rating plate
    
13. Knob
    

Intended use

The product described is an electrically-powered breaker with pneumatic hammering mechanism. It is designed for heavy chiseling work on masonry and concrete.

• Operation is permissible only when connected to a power source providing a voltage and frequency in compliance with the information given on the type identification plate.
  

Active Vibration Reduction (AVR)

TE 800-AVR
The breaker is equipped with an Active Vibration Reduction (AVR) system, which greatly reduces vibration.

Service indicator

The breaker is equipped with a service indicator LED.

Status	Meaning
The service indicator lights.	End of service interval – servicing is due. Bring the product to Hilti Service in good time. This will help to ensure that it’s always ready for use.

Power level indicator

The breaker is equipped with a power level indicator LED.

Status	Meaning
The power level indicator lights.	Chiseling power is reduced to 70%. Press the power level selector switch again to return to full chiseling power. The chiseling power level can be adjusted only when the tool is plugged in to the electric supply.

Items supplied

Breaker, side handle, operating instructions.
Other system products approved for use with this product can be found at your local Hilti Store or at: www.hilti.group | USA: www.hilti.com

Breaker

When powered by a generator or transformer, the generator or transformer’s power output must be at least twice the rated input power shown on the rating plate of the power tool. The operating voltage of the transformer or generator must always be within +5% and -15% of the rated voltage of the power tool.

	TE 800	TE 800‑AVR
Rated power input	1,850 W	1,850 W
Single impact energy in accordance with EPTA procedure 05	21 J	21 J
Weight in accordance with EPTA procedure 01	10.5 kg	10.6 kg

Noise information and vibration values in accordance with EN 60745

The sound pressure and vibration values given in these instructions were measured in accordance with a standardized test and can be used to compare one power tool with another. They can also be used for a preliminary assessment of exposure. The data given represents the main applications of the power tool. However, if the power tool is used for different applications, with different accessory tools, or is poorly maintained, the data can vary. This can significantly increase exposure over the total working period. An accurate estimation of exposure should also take into account the times when the tool is switched off, or when it is running but not actually being used for a job. This can significantly reduce exposure over the total working period. Identify additional safety measures to protect the operator from the effects of noise and/or vibration, for example: Maintaining the power tool and accessory tools, keeping the hands warm, organization of work patterns.
Noise information

Sound (power) level (LWA)	98 dB(A)
Uncertainty for the sound power level (KWA)	3 dB(A)
Emission sound pressure level (LpA)	87 dB(A)
Uncertainty for the sound pressure level (KpA)	3 dB(A)

Information about vibration

	TE 800	TE 800‑AVR
Chiseling (ah, Cheq)	16 m/s²	8 m/s²
Uncertainty (K)	1.5 m/s²	1.5 m/s²

Preparations at the workplace

Observe the safety instructions and warnings in this documentation and on the product.

Fitting the side handle

• Fit the side handle.
  

Changing the accessory tool

1. Apply a little grease to the connection end of the accessory tool.
   
2. Push the accessory tool into the chuck as far as it will go (until it engages).
   
   • The product is ready for use.
     
3. Pull the chuck back as far as it will go and remove the accessory tool.
   
   Use only the recommended grease supplied by Hilti . Use of unsuitable grease may cause damage to the product.
   

Removing the accessory tool

• Remove the accessory tool.
  

Positioning the chisel

• Fit the accessory tool.
  

Setting the chiseling power

1. Press the power level selector switch.
   
   • The power level indicator lights yellow.
     
   • Power is reduced to 70%.
     
   Reduce the power to 70% when you wish to chisel with greater precision.
   
   The chiseling power level can be adjusted only when the tool is plugged in to the electric supply.
   
2. Press the power level selector switch again to return to full chiseling power.
   

Types of work

Full approval must be obtained from the site engineer or architect prior to beginning the work.

Chiseling

1. Plug the supply cord into the power outlet.
   
   Working at low temperatures: The hammering mechanism works only when the power tool has reached a minimum operating temperature. Bring the chisel into contact with the base material and allow the power tool to run under no load until the minimum operating temperature is reached. If necessary, repeat this procedure until the hammering mechanism begins to operate.
   
2. Bring the chisel into contact with the workpiece about 80 -100 mm (3¹⁄₈" - 4") from its edge.
   
3. To switch the power tool on, push the on/off switch to the right.
   
   • The on/off switch remains engaged in this position (on the right).
     
4. To switch the power tool off, push the on/off switch to the left.
   
   • The on/off switch remains engaged in this position (on the left).
     
   If inadequate pressure is applied, the chisel will jump around uncontrollably. Application of excessive pressure will result in a loss of chiseling performance.
   When working close to reinforcing bars, always guide the tip of the chisel toward the edge of the workpiece, not toward a reinforcing bar.
   

Troubleshooting