NPR 24-22

About this documentation

• Read this documentation before initial operation or use. This is a prerequisite for safe, trouble-free handling and use of the product.
  
• Observe the safety instructions and warnings in this documentation and on the product.
  
• Always keep the operating instructions with the product and make sure that the 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
	Hilti Li‑ion battery
	Hilti charger

Symbols in illustrations

	These numbers refer to the illustrations 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 illustration and refer to the numbers used in the key in the product overview section.
	These characters are intended to specifically draw your attention to certain points when handling the product.

Product-dependent symbols

Symbols on the product

	Risk of crushing injury!
	The product supports near-field communication (NFC) technology compatible with iOS and Android platforms.
	Direct current (DC)
	Hilti Li-ion battery type series used. Observe the information given in the section headed Intended use .
	Li-ion battery
	Never use the battery as a striking tool.
	Do not drop the battery. Never use a battery that has suffered an impact or is damaged in any other way.
	If applied on the product, the product has been certified by this certification body for the US and Canadian markets according to the applicable standards.

Product information

• 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

  Pressing tool	NPR 24-22
  Generation	01
  Serial no.

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.
  

• 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.
  
• Use power tools only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fire.
  
• 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.
  
• Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, flush with water. If liquid contacts eyes, additionally seek medical help. Liquid ejected from the battery may cause irritation or burns.
  
• Do not use a battery pack or tool that is damaged or modified. Damaged or modified batteries may exhibit unpredictable behaviour resulting in fire, explosion or risk of injury.
  
• Do not expose a battery pack or tool to fire or excessive temperature. Exposure to fire or temperature above 130° C (265 °F) may cause explosion.
  
• Follow all charging instructions and do not charge the battery pack or tool outside the temperature range specified in the instructions. Charging improperly or at temperatures outside the specified range may damage the battery and increase the risk of fire.
  

• 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.
  
• Never service damaged battery packs. Service of battery packs should only be performed by the manufacturer or authorized service providers.
  

Additional safety instructions for pressing tools

• Comply with the country-specific standards and safety instructions for operation of pressing tools and all work on, with or in proximity to electrically live equipment and lines.
  
• Persons who work in the vicinity of live lines must receive regular instruction and training.
  
• Use the pressing tool only when it is in technically faultless condition.
  
• Never tamper with or modify the product or accessories in any way.
  
• Keep the air vents clear at all times. Risk of burn injuries due to blocked air vents.
  
• If you notice oil escaping, cease working with the tool and consult Hilti Service. Immediately remove the leaked oil.
  
• Check that the locking pin is pushed in all the way and securely engaged.
  
• Throughout the pressing operation, take great care to keep your hands and fingers well clear of the pressing head.
  
• Switch the product on only after you have brought it to the working position.
  
• Wait until the product has come to a complete stop before you lay it down.
  
• Always hold the pressing tool firmly with both hands on the grips provided for the purpose.
  
• Do not secure a belt hook to this power tool.
  
• Risk of injury by falling tools and/or accessories. Before starting work, check that the battery and installed accessories are secure.
  
• Do not look directly into the light source (LED) of the product and do not aim the beam at other persons’ faces. Risk of dazzling or eye damage.
  
• Keep the retaining strap and the tether clean and dry.
  
• Never carry out pressing work on parts of a gas supply network unless express approval has been given by the system supplier for use of this pressing tool in conjunction with specially tested and approved fittings.
  
• After pressing, pressure-test the piping system to ensure that it is free of leaks (resulting from misuse of the tool, for example).
  

• Before use of the pressing tool, all live cables and other equipment carrying electric voltage within the area in which the user is working are to be switched off. If this is not possible, the corresponding safety precautions for working in proximity to live cables or equipment must be implemented and observed.
  
• 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.
  
• Do not press live parts, i.e. parts carrying electric voltage. The pressing tool must be considered as being uninsulated and must therefore be used in combination with personal protective equipment (protective gloves, protective footwear, protective clothing, etc.) of a type suitable to provide protection for yourself and other persons in the vicinity.
  

• After approx. 50 consecutive pressing operations, switch the pressing tool off and allow it to cool down for about 15 minutes. Overheating can lead to damage to the pressing tool.
  
• Store the pressing tool in a dry place inaccessible to children and unauthorized persons.
  
• Hilti recommends having the crimping tool overhauled by Hilti Service after 15,000 crimping operations.
  
• Before starting work, check the pressing tool, the pressing jaws (NPR PS) or, as applicable, the pressing rings (NPR PR) in accordance with the instructions. Inadequately tested pressing tools, jaws or rings can lead to substandard pressings and are a potential safety risk for the operator.
  
• Make sure that there are no foreign objects (e.g. plaster, grit particles, metal cuttings, etc.) in the pressing jaws and no parts are damaged. Do not continue to use damaged or distorted pressing jaws!
  

Battery use and care

• Comply with the following safety instructions for the safe handling and use of Li-ion batteries. Failure to comply can lead to skin irritation, severe corrosive injury, chemical burns, fire and/or explosion.
  
• Use only batteries that are in perfect working order.
  
• Treat batteries with care in order to avoid damage and prevent leakage of fluids that are extremely harmful to health!
  
• Do not under any circumstances modify or tamper with batteries!
  
• Do not disassemble, crush or incinerate batteries and do not subject them to temperatures over 80 °C (176 °F).
  
• Never use or charge a battery that has suffered an impact or been damaged in any other way. Check your batteries regularly for signs of damage.
  
• Never use recycled or repaired batteries.
  
• Never use the battery or a battery-operated power tool as a striking tool.
  
• Never expose batteries to the direct rays of the sun, elevated temperature, sparking, or open flame. This can lead to explosions.
  
• Do not touch the battery poles with your fingers, tools, jewelry, or other electrically conductive objects. This can damage the battery and also cause material damage and personal injury.
  
• Keep batteries away from rain, moisture and liquids. Penetrating moisture can cause short circuits, electric shock, burns, fire and explosions.
  
• Use only chargers and power tools approved for the specific battery type. Read and follow the relevant operating instructions.
  
• Do not use or store the battery in explosive environments.
  
• If the battery is too hot to touch, it may be defective. Put the battery in a place where it is clearly visible and where there is no risk of fire, at an adequate distance from flammable materials. Allow the battery to cool down. If it is still too hot to touch after an hour, the battery is faulty. Consult Hilti Service or read the document entitled "Instructions on safety and use for Hilti Li-ion batteries".
  
  Observe the special guidelines applicable to the transport, storage and use of lithium-ion batteries.
  Read the instructions on safety and use of Hilti Li-ion batteries that you can access by scanning the QR code at the end of these operating instructions.
  

Product overview

1. Pressing die
   
2. Tool head
   
3. Piston return switch
   
4. Servicing and fault indicator
   
5. Installation opening for accessories
   
6. Work-area light
   
7. Control switch
   
8. Locking pin
   
9. Mount for pressing jaw
   
10. Battery status indicator
    
11. Battery release button
    
12. Battery
    

Intended use

The product described is a cordless, electro-hydraulic pressing tool.

• For this product, use only Hilti Nuron lithium-ion batteries of the B 22 series. For optimum performance, Hilti recommends the batteries stated in this table for this product.

• For these batteries, use only Hilti chargers of the type series stated in this table.

Possible misuse

• Do not use this hand-held pressing tool clamped in a fixed position or as a stationary device.
  
• Do not use the electro-hydraulic pressing tool in heavy rain or under water.
  

Items supplied

Status indicators of the Li‑ion battery

Indicators for state of charge and fault messages

Indicators showing the battery's state of health

Battery

Charging the battery

1. Before charging the battery, read the operating instructions for the charger.
   
2. Make sure that the contacts on the battery and the contacts on the charger are clean and dry.
   
3. Use an approved charger to charge the battery.
   

Inserting the battery

1. Charge the battery fully before using it for the first time.
   
2. Push the battery into the product until it engages with an audible click.
   
3. Check that the battery is seated securely.
   

Removing the battery

1. Press the battery release button.
   
2. Remove the battery from the product.
   

Inserting pressing jaw

1. Select the suitable pressing jaw.
   
2. Turn the tool head so that the locking pin is easily accessible.
   
3. Press the locking pins.
   
4. Rotate the locking pins counterclockwise as far as they will go.
   
   • The locking pin pops out.
     
5. Insert the pressing jaw.
   
6. Push the locking pins in until they engage.
   
   The locking pin is engaged correctly when it projects slightly on the other side of the pressing jaw.
   

Removing pressing jaw

1. Turn the tool head so that the locking pin is easily accessible.
   
2. Press the locking pins.
   
3. Rotate the locking pins counterclockwise as far as they will go.
   
   • The locking pin pops out.
     
4. Work the pressing jaw forward and out of the product.
   

Fall arrest

• Secure the retaining strap to the installation openings for accessories. Check that it holds securely.
  
• Secure one carabiner of the tool tether to the retaining strap and secure the second carabiner to a load-bearing structure. Check that both carabiners hold securely.
  
  Comply with the operating instructions of the Hilti retaining strap and those of the Hilti tool tether.
  

Pressing with pressing jaws

1. Insert the pressing jaw.
   
2. Squeeze the legs of the pressing jaws together.
   
   • The pressing jaw opens.
     
3. Enclose the fitting to be installed in the pressing jaw.
   
4. Press and hold down the control switch until the piston retracts.
   
   • The pressing operation is completed successfully.