PC 2-22

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

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

Symbols in the operating instructions

The following symbols are used in these 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

The following symbols are used 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.

Symbols

Symbols on the product

The following symbols can be used on the product:

	The product supports near-field communication (NFC) technology compatible with iOS and Android platforms.
	Li-ion battery
	Do not connect the product directly to the drinking-water system. Use a type BA backflow preventer in accordance with EN 12729. Do not use water that has passed through this backflow preventer as drinking water.
	Never strike the battery with an object and 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.

Product information

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 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

  Cordless high-pressure cleaner	PC 2-22
  Generation	01
  Serial no.

Declaration of conformity

The manufacturer declares, on his sole responsibility, that the product described here complies with the applicable legislation and standards.
The technical documentation is filed here:
Hilti Entwicklungsgesellschaft mbH | Tool Certification | Hiltistrasse 6 | D-86916 Kaufering, Germany

General safety instructions

In addition to the safety instructions given in the various sections of these operating instructions, the following points must be strictly observed at all times.

• Read all the instructions! Failure to follow all the instructions listed below may result in electric shock, fire and/or serious injury.
  
• Never tamper with or modify the product or accessories in any way.
  
• Use the right appliance for the job. Do not use the appliance for purposes for which it was not intended. Use it only as directed and when in faultless condition.
  
• Before beginning work with the power tool, find out how to operate it correctly and about any hazards associated with the material and how the liquid produced can be disposed of.
  
• Take the influences of the surrounding area into account. Do not use the appliance where there is a risk of fire or explosion.
  
• WARNING! The appliance may only be used by persons who are familiar with it, have been trained on how to use it safely and who understand the resulting hazards. The appliance is not intended for use by children. Children must be supervised in order to ensure that they don’t play with the appliance.
  
• The high-pressure cleaner is not suitable for use by persons with reduced physical, sensory or mental abilities or lack of experience and knowledge.
  
• Store appliances in a secure place when not in use. When not in use, appliances must be stored in a dry, high place or locked away out of reach of children.
  

Personal safety

• Stay alert, watch what you are doing and use common sense when working with the product. Do not use the high-pressure cleaner while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while operating the power tool can result in serious personal injury.
  
• Avoid unaccustomed body positions. Maintain proper footing and balance at all times. This will allow you to control the high-pressure cleaner better, even in unexpected situations.
  
• The high-pressure cleaner's jet of water creates a recoil. Use both hands to hold the product firmly by the grip and the gripping surface.
  
• Before putting the product into operation, always point the spray nozzle in a safe direction.
  
• WARNING! Failure to follow the correct procedures when using a high-pressure cleaner can be dangerous. Do not undertake cleaning when anyone unprotected is in the danger zone. Never direct the jet of water toward persons, children or living creatures.
  
• WARNING! Never direct the jet toward yourself or toward other persons, for example to clean clothing or footwear.
  
• Keep fingers, hands, feet and other parts of the body away from the jet of water. The high-pressure jet of water can lead to injuries and is powerful enough for example to lead to loss of eyesight if the jet is started when too near.
  
• Always wear a mask when cleaning areas badly contaminated by dust. Dust swirled up by the jet of water can lead to injuries.
  
• Always wear eye protection when using the product. This will prevent injury to the eyes and loss of sight.
  
• WARNING! The use of high-pressure cleaners can result in the formation of aerosols. Inhaling aerosols can be hazardous to health. Consequently, wear a dust mask.
  
• WARNING! Risk of explosion - Do not spray flammable liquids.
  
• Perform a risk assessment to define the necessary protective measures against aerosols depending on the surface to be cleaned and your surroundings. FFP2 dust masks, equivalent or higher-rated dust masks are suitable as protection against aqueous aerosols.
  
• You and all other persons in the vicinity must wear suitable protective gear while the power tool is in use or while maintenance work on it is being carried out. This includes: eye protection, hard hat, hearing protection, protective gloves, safety footwear and light respiratory protection.
  
• Observe the accident prevention regulations applicable in your country.
  

Workplace

• Ensure that the workplace is well lit.
  
• Ensure that the workplace is well ventilated. Poorly ventilated workplaces can result in damage to health because of inhalation of aerosols and exposure to dust.
  
• Keep the workplace tidy. Objects which could cause injury should be removed from the working area. Untidiness at the workplace can lead to accidents.
  
• Do not operate the appliance in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Electric appliances cause sparks which may ignite the dust or fumes.
  

Electrical safety

• Avoid body contact with earthed or grounded surfaces such as pipes, radiators, cookers, stoves and refrigerators. There is an increased risk of electric shock if your body is grounded.
  
• Never direct the jet of water directly on to electrical or electronic devices.
  

• Do not expose the appliance to rain.
  

Additional safety instructions

• Use the product and accessories only when they are in perfect working order.
  
• Risk of injury by falling tools and/or accessories. Before starting work, check that the battery and installed accessories are secure.
  
• Switch the high-pressure cleaner off also when you are leaving the power tool unattended for only a short time.
  
• WARNING! Do not connect the product directly to the drinking-water system. Use a backflow preventer in accordance with EN 12729 Typ BA. Do not use water that has passed through this backflow preventer as drinking water.
  
• WARNING! Spare parts and accessories are important for ensuring the safety of the high-pressure cleaner. Consequently, use only original spare parts and accessories recommended or produced by the manufacturer.
  
• WARNING! High-pressure hoses, fittings and couplings are important for the safety of the high-pressure cleaner. Use only hoses, fittings and couplings recommended by the manufacturer.
  
• WARNING! This power tool is designed for use with the cleaning agent supplied with it or recommended by the manufacturer. Use of other cleaning agents or chemicals can impair the safety of the power tool.
  
• WARNING! Failure to follow the correct procedures when using high-pressure nozzles can be dangerous. Do not direct the jet toward persons, live electrical equipment or the machine itself.
  
• Always use the high-pressure cleaner with the original intake filter.
  
• Never use the high-pressure cleaner in areas where flammable dust, liquids or vapors are present.
  
• Use only liquids and cleaning agents that are approved for use with high-pressure cleaners.
  
• Use only cleaning agents that have their own material safety data sheet (MSDS) and follow the instructions on the MSDS.
  
• Protect eyes, lungs and skin from contact with cleaning agents.
  
• Store the high-pressure cleaner inside a closed room to protect it from prolonged exposure to sunlight and from frost. Empty out residual water before you put the high-pressure cleaner into storage. If residual water left inside the high-pressure cleaner freezes and expands, the high-pressure cleaner will suffer damage and will no longer be in working order.
  

Careful handling and use of batteries

• 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. Spray nozzle
   
2. Adjustment, spray nozzle
   
3. Spray lance
   
4. Gripping surface
   
5. Locking mechanism, on / off switch
   
6. On/off switch
   
7. Grip
   
8. Water connection
   
9. Coupling, water connection
   
10. Seal
    
11. Water filter
    
12. Coupling, intake hose
    
13. Intake hose
    
14. Retaining lug
    
15. Intake filter
    
16. Battery
    
17. Battery status indicator
    
18. Battery release button
    
19. Cleaning-agent container (accessory)
    
20. Dispensing wheel
    
21. Coupling, cleaning-agent container
    

Intended use

The product described is a cordless high-pressure cleaner. It is designed for professional use indoors and outdoors, for example for cleaning vehicles, machinery, outdoor facilities, tools, facades, terraces, etc. with water.
Optionally, a cleaning-agent container can be installed on the spray lance.

• 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.
  

Items supplied

Cordless high-pressure cleaner, spray lance, spray nozzle, intake hose with intake filter, operating instructions

Stickers on the product

	Never direct the jet of water toward persons, living creatures or electrical components.
	Guaranteed sound power level, LWAd (ref. 1pW), in decibels.

Status indicators of the Li‑ion battery

Hilti Nuron Li-ion batteries can indicate state of charge, fault messages and the battery's state of health.

Indicators for state of charge and fault messages

Short-press the release button of the battery to get whichever of the following status indications is applicable at the time.
State of charge and, if applicable, faults are indicated constantly as long as the connected product is switched on.

Status	Meaning
Four (4) LEDs show constantly green	State of charge: 100 % to 71 %
Three (3) LEDs show constantly green	State of charge: 70 % to 51 %
Two (2) LEDs show constantly green	State of charge: 50 % to 26 %
One (1) LED shows constantly green	State of charge: 25 % to 10 %
One (1) LED slow-flashes green	State of charge: < 10 %
One (1) LED quick-flashes green	The Li-ion battery is completely discharged. Recharge the battery. If the LED again starts quick-flashing after the battery has been charged, consult Hilti Service.
One (1) LED quick-flashes yellow	The Li-ion battery or the product in which it is inserted is overloaded, too hot or too cold, or experiencing some other fault. Bring the product and the battery to the recommended working temperature and do not overload the product when it is in use. If the message persists, consult Hilti Service.
One (1) LED shows yellow	The Li-ion battery and the product in which it is inserted are not compatible. Consult Hilti Service.
One (1) LED quick-flashes red	The Li-ion battery is locked and cannot be used. Consult Hilti Service.

Indicators showing the battery's state of health

To check the battery's state of health, press the release button and hold it down for longer than three seconds. The system does not detect a potential malfunction of the battery due to misuse, for example battery dropped or pierced, external heat damage, etc.

Status	Meaning
All LEDs show in sequence, followed by one (1) LED showing constantly green.	The battery can remain in use.
All LEDs show in sequence, followed by one (1) LED quick-flashing yellow.	The check to ascertain the battery's state of health did not complete. Repeat the procedure, or consult Hilti Service.
All LEDs show in sequence, followed by one (1) LED showing constantly red.	If a connected product can still be used, the remaining battery capacity is below 50 %. If a connected product can no longer be used, the battery has reached the end of its useful life and has to be replaced. Consult Hilti Service.

Settings (spray nozzle)

Symbol	Function	Application description
	Flat jet	Cleaning to remove medium soiling
	Sprinkler	Area cleaning to remove medium soiling
	Turbo blaster	Area cleaning to remove severe soiling
	Spot jet	Spot cleaning to remove severe soiling

Product properties

	PC 2-22
Weight	2.1 kg
IP code	IP X5 (Protection against water jets from all directions)
Nominal pressure	40 bar ±3 bar
Permissible pressure	6 MPa
Water connection	1⁄2" water hose / coupling
Maximum inflow temperature	40 ℃
Maximum inflow pressure	0.6 MPa
Nominal flow rate (water)	2.2 ℓ/min
Maximum flow rate (water)	4.5 ℓ/min
Maximum suction head (only with hose fully filled)	4 m
Ambient temperature for operation	0 ℃ … 60 ℃
Storage temperature	−20 ℃ … 70 ℃

Battery

Battery operating voltage	21.6 V
Weight, battery	See the section headed "Intended use"
Ambient temperature for operation	−17 ℃ … 60 ℃
Storage temperature	−20 ℃ … 40 ℃
Battery charging starting temperature	−10 ℃ … 45 ℃

Noise information and vibration values in accordance with EN 60335-2-79

The sound pressure and vibration values given in these instructions have been measured in accordance with a standardized test and may be used to compare one power tool with another. They may 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 may vary. This may significantly increase exposure over the total working period.
An accurate estimation of exposure should also take into account the times when the power tool is switched off, or when it is running but not actually being used for a job. This may 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)	79 dB(A)
Sound pressure level (LpA)	66 dB(A)
Uncertainty (KWA)	1.6 dB(A)
Uncertainty (KpA)	3 dB(A)

Total vibration

Vibration emission value	B 22‑255	2.4 m/s²
Uncertainty		0.7 m/s²

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.
   

Assembling product

All modules (spray nozzle, spray lance, cleaning-agent container) have a universal locking mechanism. The procedure described applies to all modules of the same connection type.

1. Insert the module into the mount.
   
2. Turn the module clockwise into the lock.
   
3. Tighten the union nut to secure the module.
   

Establishing water supply from water line

1. Install a backflow preventer at the water connection.
   
2. Install one of the couplings of the intake hose on the backflow preventer.
   
3. Install the other coupling of the intake hose on the high-pressure cleaner.
   
4. Open the water inflow of the water supply.
   

Establishing water supply from open container

You can use any kind of open container for the water supply. Make sure there are no other liquids and no dirty water in the open container. Always use an intake filter when the water supply is from an open container. This will prevent the intake of foreign matter that would damage the product.

1. Install the coupling of the intake hose supplied on the coupling (water connection) of the product.
   
2. Connect an intake filter to the coupling on the free end of the intake hose.
   
3. Lower the intake hose with connected intake filter into an open water container.
   

Switching locking mechanism on/off

1. Push the locking mechanism of the on / off switch to the right.
   
   • The on / off switch is locked and cannot be accidentally operated.
     
2. Push the locking mechanism of the on / off switch to the left.
   
   • The on / off switch can be operated.
     

Installing cleaning-agent container (accessory)

1. Remove the spray nozzle from the spray lance.
   
2. Install the cleaning-agent container on the spray lance.
   
3. Use the dispensing wheel to regulate the amount of cleaning agent to be dispensed.
   
   • Turn the dispensing wheel to the left for more cleaning agent.
     
   • Turn the dispensing wheel to the right for less cleaning agent.
     

Fall arrest

As drop arrester for this product, use only the Hilti tool tether #2261971.

• Use the loop to secure the tool tether to the product as shown in the illustration. Check that it holds securely.
  
• Secure the carabiner to a load-bearing structure. Check that the carabiner holds securely.
  
  Comply with the operating instructions of the Hilti tool tether.
  

Instructions for safe operation

Before each use, check that the product builds up pressure within a maximum of 2 minutes. Avoid dry running and dry operation of the product. Dry operation over a certain time can damage the product.
Always choose the operating mode that suits the degree of soiling and the sensitivity of the material. Excessively high water pressure can cause damage to surfaces. Avoid excessively high pressure settings ( ) and nozzle-to-surface distances less than 30 cm, for example when cleaning painted surfaces, sensitive wood surfaces or tires.
The self-priming function works only up to a height difference of 1.2 meters. Make sure that the intake hose has filled with water before you work at a height of more than 1.2 meters.

Switching product on or off

Switching product on

1. Press and hold down the on/off switch.
   
   • The pump starts and a jet of water is discharged.
     
   • Do not exceed the maximum suction head when you route the water infeed line. The pump's self-priming function works up to a maximum height difference of 1.2 m.
     
   • If the product does not build up pressure after 2 minutes, cease operation and troubleshoot the problem.
     
2. Carry out the cleaning task.
   

Switching product off

3. Release the on/off switch.
   
   • Pump and water inflow are stopped.
     
   If you are going to store the product at temperatures near or below freezing, remove all traces of water from the product and all supply lines.
   

Cleaning intake filter

1. Remove the intake filter from the intake hose.
   
2. Turn the coupling of the intake filter.
   
3. Remove the sealing ring from the intake filter.
   
4. Bend the two retaining lugs apart.
   
5. Remove the strainer from the intake filter.
   
6. Clean all the individual parts under running water.
   
7. Clean the strainer and the inside of the intake filter with a small brush.
   
8. Assemble the intake filter.
   
9. Install the intake filter on the intake hose.
   

Cleaning water filter

1. Remove the coupling for the water connection from the high-pressure cleaner.
   
   If necessary, use an open-ended wrench to loosen the coupling for the water connection.
   
2. Remove the water filter from the coupling for the water connection.
   
3. Clean all the individual parts under running water.
   
4. Insert the water filter into the coupling for the water connection.
   
5. Install the coupling for the water connection on the high-pressure cleaner.
   

Cleaning spray nozzle

1. Remove the spray nozzle from the spray lance.
   
2. Insert the pointed object into the spray nozzle.
   
3. Move the pointed object back and forth until it moves easily.
   
4. Install the spray nozzle on the spray lance.
   

Troubleshooting table and tips for assistance