DWP 15-22

Information about the documentation

Explanation of symbols

Warnings

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

DANGER

DANGER !

• Draws attention to imminent danger that will lead to serious personal injury or fatality.
  

WARNING

WARNING !

• Draws attention to a potential threat of danger that can lead to serious injury or fatality.
  

CAUTION

CAUTION !

• Draws attention to a potentially dangerous situation that could lead to personal injury or damage to the equipment or other property.
  

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.

Product-dependent symbols

Symbols on the product

The following symbols can be used on the product:

	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.
	Hilti Li-ion battery type series used. Observe the information given in the section headed Intended use .
	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

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

  Battery water tank	DWP 15-22
  Generation	01
  Serial no.

Safety

Additional safety instructions

WARNING! Study all safety instructions and other instructions, images and technical data with which this power tool is provided. Failure to observe the instructions below can result in electric shock, fire and/or serious injury.
Keep all safety precautions and instructions for future reference.
The term “power tool” used in the safety precautions refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.
Safety at the workplace

• Keep your work area clean and well lit. Cluttered or dark work areas invite accidents.
  
• Do not operate the power tool 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 bystanders, children and visitors away while operating a power tool. Distractions can cause you to lose control of the tool.
  

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 the power tool may result in serious personal injury.
  
• Wear your personal protective equipment and always wear protective glasses. Depending on the purpose for which the power tool is to be used, wearing safety equipment such as a dust mask, non-skid safety shoes, hard hat, or hearing protection will reduce the risk of injury.
  
• Avoid accidental starting. Check that the power tool is switched off before you connect it to the power supply and/or the battery and before picking it up or carrying it. Carrying power tools with your finger on the switch or plugging in power tools that are already switched on invites accidents.
  
• Avoid unaccustomed body positions. Maintain proper footing and balance at all times. This will allow you to control the power tool better, even in unexpected situations.
  
• Wear suitable work clothes. Do not wear jewelry or loose clothing. Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewelry or long hair can be snagged by moving parts.
  
• Do not lull yourself into a false sense of security and do not flout the safety rules for power tools, even if you are familiar with the power tool after using it many times. Caress handling could cause serious injury within fractions of a second.
  

Using and handling the power tool

• Do not overload the tool. Use the correct power tool for your application. The correct power tool will do the job better and more safely within the performance range for which it is designed.
  
• Do not use a power tool if it has a faulty On/Off switch. Any power tool that cannot be controlled with the switch is dangerous and must be repaired.
  
• Disconnect the plug from the power outlet and/or remove a removable battery before making any adjustments, changing accessories, or storing the tool. This precaution reduces the risk of the power tool starting accidentally.
  
• Store power tools out of reach of children when not in use. Do not allow persons who are not familiar with the tool and these instructions to operate it. Power tools are dangerous in the hands of inexperienced persons.
  
• Maintain power tools and accessories carefully. Check that moving parts operate satisfactorily and do not jam, and whether any parts are broken or so damaged that the correct operation of the power tool is adversely affected. If parts are damaged, have the parts repaired before using of the tool. Many accidents are caused by poorly maintained power tools.
  
• Use power tools, accessories, insert tools, etc. only as described in this manual. Take the working conditions and the work to be performed into account. Use of the power tool for operations different from those intended could result in a hazardous situation.
  
• Keep grips and gripping surfaces dry, clean and free from oil and grease. Slippery grips and gripping surfaces do not allow the power tool to be safely operated and controlled in unforeseen situations.
  

Using and handling the cordless power tool

• Recharge the batteries only with the chargers specified by the manufacturer. A charger that is suitable for a certain type of battery may present a risk of fire when used with other types of battery.
  
• Use only the specified batteries in power tools. Use of any other batteries may create a risk of injury and fire.
  
• When the battery is not in use, keep it away from paper clips, coins, keys, nails, screws and other small metal objects that could cause bridging between the terminals. A short circuit between the battery terminals may cause burns or a fire.
  
• Liquid may leak from the battery if used incorrectly. Avoid contact with the liquid. If contact accidentally occurs, flush with water. If the liquid contacts the eyes, also seek medical attention. Liquid escaping from the battery can cause skin irritation or burns.
  
• Do not use damaged or modified batteries. Damaged or modified batteries may behave unpredictably and lead to fires, explosions or risk of injury.
  
• Do not expose batteries to fire or excessive temperatures. Fires or temperatures over 130 °C (265 °F) may cause an explosion.
  
• Follow all instructions on battery charging and never charge the battery or the battery-powered tool outside the temperature range stated in the operating instructions. Incorrect charging or charging outside the approved temperature range may destroy the battery and increase the risk of fire.
  

Service

• Have your power tool repaired only by qualified,skilled personnel, using only genuine Hilti spare parts. The safety of the tool can thus be maintained.
  
• Never repair damaged batteries. All battery repair should only be carried out by the manufacturer or authorized customer service centers.
  

Description

Product overview

1. Transport handle (extending)
   
2. Transport handle (fixed)
   
3. Catch (transport handle)
   
4. Water tank
   
5. Battery-compartment cover
   
6. Water supply hose
   
7. Hose connector
   
8. Display and control panel
   
9. Inlet filter
   
10. Tank filter
    
11. Water filler neck with sealing cap
    
12. Battery release button
    
13. LED charge state indicator
    

Intended use

The product described is a cordless water tank for supplying cooling water to system products such as diamond core drilling machines, diamond cut-off saws (including gasoline-powered and cordless cut-off saws). It is intended exclusively for use with water.

• 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.

LED light signals

LED signal	Meaning
LED between the operating buttons shows green.	Product is ready for operation/in operation
LED at battery symbol shows red.	Battery state of charge low, battery needs recharging.

Technical data

Preparations at the workplace

Operation

1. Check that the tank filter is correctly installed.
   
2. Fill the tank.
   
   • Do not overfill.
     
3. Transport the cordless water tank to the place of work.
   
4. Connect the cordless water tank to the system product by means of the water supply hose.
   
5. Press the ON button.
   
   • The LED shows green.
     
   • The pump starts and runs briefly, even if the water supply valve has not been opened to enable the flow of water.
     
6. Open the water supply valve on the system product.
   
7. Carry out the work.
   
8. Close the water supply valve on the system product.
   
   When you close the water supply valve on the system product, the cordless water tank runs on for approx. 10 seconds and then switches automatically to standby mode (LED shows green). The cordless water tank restarts automatically if, within 7 minutes, you re-open the water supply valve on the system product or disconnect the system product from the cordless water tank.
   If the water supply valve on the system product remains closed for longer than 7 minutes, the cordless water tank shuts down completely (LED goes out).
   
9. To switch the cordless water tank off manually, press the OFF button.
   
   • The LED goes out.
     
   • The cordless water tank is switched off and you can disconnect system products from the cordless water tank.
     

Care and maintenance

• Carefully remove stubborn dirt.
  
• Carefully clean the air vents, if present, with a dry, soft brush.
  
• Use only a slightly damp cloth to clean the housing. Do not use cleaning agents containing silicone as these can attack the plastic parts.
  
• Use a dry, clean cloth to clean the contacts of the product.
  

• Never use a battery with clogged air vents. Clean the air vents carefully using a dry, soft brush.
  
• Avoid unnecessary exposure of the battery to dust and dirt. Never expose the battery to high levels of moisture (e.g. by being dipped in water or left in the rain).
  If a battery has been soaked by moisture, treat it as a damaged battery. Isolate it in a non-flammable container and consult Hilti Service.
  
• Keep the battery free of extraneous oil and grease. Do not permit dust or dirt to accumulate unnecessarily on the battery. Clean the battery with a dry, soft brush or a clean, dry cloth. Do not use cleaning agents containing silicone as these can attack the plastic parts.
  Do not touch the contacts of the battery and do not remove the factory-applied grease from the contacts.
  
• Use only a slightly damp cloth to clean the housing. Do not use cleaning agents containing silicone as these can attack the plastic parts.
  

• Check all visible parts and controls for signs of damage at regular intervals and make sure that they all function correctly.
  
• Do not use the product if signs of damage are found or if parts malfunction. Immediately have the product repaired by Hilti Service.
  
• After cleaning and maintenance, install all guards and protective devices and check that they are in full working order.
  

Instructions for storage

• Empty the water tank before putting the unit into storage.
  
• When work is finished, allow the pump to run on with the hose connected for about 10 seconds to pump residual water out of the system.
  When emptying the tank, position the cordless water tank higher than the end of the hose. This precaution helps ensure that no water remains in the hose.
  

• Follow the instructions for preparation for a lengthy out-of-use period.
  
• If you suspect that water has frozen inside the system, take the cordless water tank to a warm place and wait until the ice has melted.
  

Transport and storage of cordless tools and batteries

CAUTION
Accidental starting during transport !

Always transport your products with the batteries removed!

• Remove the battery/batteries.
  
• Never transport batteries loose and unprotected. During transport, batteries should be protected from excessive shock and vibration and isolated from any conductive materials or other batteries that may come in contact with the terminals and cause a short circuit. Comply with the locally applicable regulations for transporting batteries.
  
• Do not send batteries through the mail. Consult your shipper for instructions on how to ship undamaged batteries.
  
• Prior to each use and before and after prolonged transport, check the product and the batteries for damage.
  

WARNING
Accidental damage caused by defective or leaking batteries !

Always store your products with the batteries removed!

• Store the product and the batteries in a cool and dry place. Comply with the temperature limits stated in the technical data.
  
• Do not store batteries on the charger. Always remove the battery from the charger when the charging operation has completed.
  
• Never leave batteries in direct sunlight, on sources of heat, or behind glass.
  
• Store the product and batteries where they cannot be accessed by children or unauthorized persons.
  
• Prior to each use and before and after prolonged storage, check the product and the batteries for damage.
  

Troubleshooting

Disposal

• Do not dispose of power tools, electronic equipment or batteries as household waste!
  

Manufacturer’s warranty

• Please contact your local Hilti representative if you have questions about the warranty conditions.
  

Further information

Hilti Li-ion 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.
  
• 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.
  
• 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. Follow the instructions in the section headed What to do in case of a battery fire .
  

• Always contact Hilti when a battery is damaged.
  
• Never use a battery that is leaking fluid.
  
• Avoid direct eye and/or skin contact with fluid leaking from a battery. Always wear protective gloves and eye protection when undertaking tasks involving battery fluid.
  
• Use a chemical spill cleanup kit to remove leaked battery fluid. Comply with the locally applicable cleanup regulations for battery fluid.
  
• To store a damaged battery, place the battery in a non-flammable container and cover the battery with dry sand, chalk powder (CaCO3) or silicate (Vermiculite). Then seal the lid air-tight and store the container away from flammable gases, liquids or objects.
  
• Dispose of the container at your Hilti Store , or consult your local governmental garbage disposal or public health and safety resources for disposal instructions. Comply with the locally applicable regulations for transporting damaged batteries!
  

• Watch for abnormal battery behavior, such as faulty charging, unusually long charging times, noticeable power loss, unusual LED activity, or leaking fluids. These are signs of an internal problem.
  
• If you suspect an internal battery problem, contact Hilti Service.
  
• A battery that no longer works, cannot be recharged or leaks fluid has to be disposed of correctly. See the section headed Maintenance and disposal .
  

WARNING
Battery fire hazard! A burning battery releases hazardous and potentially explosive liquids and fumes that can lead to corrosion injuries, burns or explosions.

Wear your personal protective equipment when you tackle a battery fire.

• Provide sufficient venting to permit hazardous and potentially explosive fumes to escape.
  
• Leave the room immediately in case of intense smoke emission.
  
• Consult a doctor in case of any skin or respiratory irritation.
  
• Alert the fire service before you start tackling the fire.
  
• Use only water to tackle a battery fire and keep as far from the fire as effective extinguishing permits. Powder fire extinguishers and fire blankets are ineffective with Li-ion batteries. Fire in nearby materials can be extinguished with appropriate extinguishing agents.
  
• Do not try to move large quantities of burning batteries. Instead, isolate the batteries by removing unaffected materials from the immediate vicinity.
  

• Scoop the battery up with a shovel and drop it into a bucket of water, which will reduce the risk of igniting adjacent cells that have not yet reached run-away temperature.
  
• Leave the battery in the bucket for at least 24 hours until it has cooled down completely.
  
• See the section headed What to do in case of damaged batteries .
  

• Ambient operating temperature to be kept between -17°C and +60°C / 1°F and 140°F.
  
• Storage temperature to be kept between -20°C and +40°C / -4°F and 104°F.
  
• Do not store batteries on the charger. Always remove the battery from the charger when the charging operation has completed.
  
• Store batteries in a cool and dry place. Cool storage will increase battery life. Never store batteries where they are exposed to direct sunlight, on sources of heat or behind glass.
  
• Do not send batteries through the mail. Consult your shipper for instructions on how to ship undamaged batteries.
  
• Never transport batteries in bulk form (loose, unprotected). During transport, batteries should be protected from excessive shock and vibration and isolated from any conductive materials or other batteries that may come in contact with the terminals and cause a short circuit. Comply with the locally applicable regulations for transporting batteries.
  

• Keep the battery free of oil and grease. Do not permit dust or dirt to accumulate unnecessarily on the battery. Clean the battery with a dry, soft brush or a clean, dry rag.
  
• Never use a battery with clogged ventilation slots. Clean the ventilation slots carefully using a dry, soft brush.
  
• Prevent unnecessary exposure of the battery to dust or debris and never subject the battery to soaking moisture (e.g., submerged in water or left out in the rain).
  
• If a battery is exposed to soaking moisture, treat it as a damaged battery and isolate it in a non-flammable container.
  
• See the section headed What to do in case of damaged batteries .
  
• Improper disposal may cause health hazards from leaking gases or fluids. Dispose of the battery at your Hilti Store , or consult your local governmental garbage disposal or public health and safety resources for disposal instructions. Comply with the locally applicable regulations for transporting damaged batteries!
  
• Do not dispose of batteries as household waste.
  
• Dispose of your battery out of the reach of children. Cover the terminals with a non-conductive material (such as electrical tape) to prevent short circuiting.