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GDG 6-22

Original operating instructions

Information about the documentation

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

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:
Image alternative Comply with the operating instructions
Image alternative Instructions for use and other useful information
Image alternative Dealing with recyclable materials
Image alternative Do not dispose of electric equipment and batteries as household waste
Image alternative Hilti Li‑ion battery
Image alternative Hilti charger

Symbols in illustrations

The following symbols are used in illustrations:
Image alternative These numbers refer to the illustrations at the beginning of these operating instructions.
Image alternative The numbering reflects the sequence of operations shown in the illustrations and may deviate from the steps described in the text.
Image alternative Item reference numbers are used in the overview illustration and refer to the numbers used in the key in the product overview section.
Image alternative 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:
Image alternative The product supports near-field communication (NFC) technology compatible with iOS and Android platforms.
Image alternative Hilti Li-ion battery type series used. Observe the information given in the section headed Intended use .
Image alternative Li-ion battery
Image alternative Never use the battery as a striking tool.
Image alternative Do not drop the battery. Never use a battery that has suffered an impact or is damaged in any other way.
Image alternative Direct current (DC)
Image alternative Wear protective glasses!
Image alternative Always work with both hands.
Image alternative Rated speed
Image alternative Revolutions per minute
Image alternative Revolutions per minute
Image alternative Diameter
Image alternative 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

Image alternative 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 die grinder
    GDG 6‑22
    Generation
    02
    Serial no.

Safety

General power tool safety warnings

Image alternative WARNING Read all safety warnings, instructions, illustrations and specifications provided with this power tool. Failure to follow all instructions listed below 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 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.
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 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.
Battery tool use and care
  • 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.
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.
  • Never service damaged battery packs. Service of battery packs should only be performed by the manufacturer or authorized service providers.

Safety warnings common for grinding, sanding, wire brushing, polishing, carving or abrasive cutting-off operations:

  • This power tool is intended to function as a grinder, sander, wire brush, polisher, carving or cut-off tool. Read all safety warnings, instructions, illustrations and specifications provided with this power tool. Failure to follow all instructions listed below may result in electric shock, fire and / or serious injury.
  • Do not use accessories which are not specifically designed and recommended by the tool manufacturer. Just because the accessory can be attached to your power tool, it does not assure safe operation.
  • The rated speed of the accessories must be at least equal to the operating speed setting marked on the power tool. Accessories running faster than their rated speed can break and fly apart.
  • The outside diameter and the thickness of your accessory must be within the capacity rating of your power tool. Incorrectly sized accessories cannot be adequately controlled.
  • The arbour size of wheels, sanding drums or any other accessory must properly fit the spindle or collet of the power tool. Accessories that do not match the mounting hardware of the power tool will run out of balance, vibrate excessively and may cause loss of control.
  • Mandrel mounted wheels, sanding drums, cutters or other accessories must be fully inserted into the collet or chuck. If the mandrel is insufficiently held and/or the overhang of the wheel is too long, the mounted wheel may become loose and be ejected at high velocity.
  • Do not use a damaged accessory. Before each use inspect the accessory such as abrasive wheels for chips and cracks, sanding drum for cracks, tear or excess wear, wire brush for loose or cracked wires. If power tool or accessory is dropped, inspect for damage or install an undamaged accessory. After inspecting and installing an accessory, position yourself and bystanders away from the plane of the rotating accessory and run the power tool at maximum no-load speed for one minute. Damaged accessories will normally break apart during this test time.
  • Wear personal protective equipment. Depending on application, use face shield, safety goggles or safety glasses. As appropriate, wear dust mask, hearing protectors, gloves and workshop apron capable of stopping small abrasive or workpiece fragments. The eye protection must be capable of stopping flying debris generated by various operations. The dust mask or respirator must be capable of filtrating particles generated by your operation. Prolonged exposure to high intensity noise may cause hearing loss.
  • Keep bystanders a safe distance away from work area. Anyone entering the work area must wear personal protective equipment. Fragments of workpiece or of a broken accessory may fly away and cause injury beyond immediate area of operation.
  • Hold power tool by insulated gripping surfaces only, when performing an operation where the cutting accessory may contact hidden wiring. Cutting accessory contacting a "live" wire may make exposed metal parts of the power tool "live" and could give the operator an electric shock.
  • Always hold the tool firmly in your hand(s) during the start-up. The reaction torque of the motor, as it accelerates to full speed, can cause the tool to twist.
  • Use clamps to support workpiece whenever practical. Never hold a small workpiece in one hand and the tool in the other hand while in use. Clamping a small workpiece allows you to use your hand(s) to control the tool. Round material such as dowel rods, pipes or tubing have a tendency to roll while being cut, and may cause the bit to bind or jump toward you.
  • Never lay the power tool down until the accessory has come to a complete stop. The spinning accessory may grab the surface and pull the power tool out of your control.
  • After changing the bits or making any adjustments, make sure the collet nut, chuck or any other adjustment devices are securely tightened. Loose adjustment devices can unexpectedly shift, causing loss of control, loose rotating components will be violently thrown.
  • Do not run the power tool while carrying it at your side. Accidental contact with the spinning accessory could snag your clothing, pulling the accessory into your body.
  • Regularly clean the power tool’s air vents. The motor’s fan will draw the dust inside the housing and excessive accumulation of powdered metal may cause electrical hazards.
  • Do not operate the power tool near flammable materials. Sparks could ignite these materials.
  • Do not use accessories that require liquid coolants. Using water or other liquid coolants may result in electrocution or shock.
Kickback and related warningsKickback is a sudden reaction to a pinched or snagged rotating wheel, sanding band, brush or any other accessory. Pinching or snagging causes rapid stalling of the rotating accessory which in turn causes the uncontrolled power tool to be forced in the direction opposite of the accessory’s rotation.
For example, if an abrasive wheel is snagged or pinched by the workpiece, the edge of the wheel that is entering into the pinch point can dig into the surface of the material causing the wheel to climb out or kick out. The wheel may either jump toward or away from the operator, depending on direction of the wheel’s movement at the point of pinching. Abrasive wheels may also break under these conditions.
Kickback is the result of power tool misuse and/or incorrect operating procedures or conditions and can be avoided by taking proper precautions as given below.
  • Maintain a firm grip on the power tool and position your body and arm to allow you to resist kickback forces. The operator can control kickback forces, if proper precautions are taken.
  • Use special care when working corners, sharp edges etc. Avoid bouncing and snagging the accessory. Corners, sharp edges or bouncing have a tendency to snag the rotating accessory and cause loss of control or kickback.
  • Do not attach a toothed saw blade. Such blades create frequent kickback and loss of control.
  • Always feed the bit into the material in the same direction as the cutting edge is exiting from the material (which is the same direction as the chips are thrown). Feeding the tool in the wrong direction causes the cutting edge of the bit to climb out of the work and pull the tool in the direction of this feed.
  • When using rotary files, cut-off wheels, high-speed cutters or tungsten carbide cutters, always have the work securely clamped. These wheels will grab if they become slightly canted in the groove, and can kickback. When a cut-off wheel grabs, the wheel itself usually breaks. When a rotary file, high-speed cutter or tungsten carbide cutter grabs, it may jump from the groove and you could lose control of the tool.
Safety warnings specific for grinding and abrasive cutting-off operations:
  • Use only wheel types that are recommended for your power tool and only for recommended applications. For example: do not grind with the side of a cut-off wheel. Abrasive cut-off wheels are intended for peripheral grinding, side forces applied to these wheels may cause them to shatter.
  • For threaded abrasive cones and plugs use only undamaged wheel mandrels with an unrelieved shoulder flange that are of correct size and length. Proper mandrels will reduce the possibility of breakage.
  • Do not “jam” a cut-off wheel or apply excessive pressure. Do not attempt to make an excessive depth of cut. Overstressing the wheel increases the loading and susceptibility to twisting or snagging of the wheel in the cut and the possibility of kickback or wheel breakage.
  • Do not position your hand in line with and behind the rotating wheel. When the wheel, at the point of operation, is moving away from your hand, the possible kickback may propel the spinning wheel and the power tool directly at you.
  • When wheel is pinched, snagged or when interrupting a cut for any reason, switch off the power tool and hold the power tool motionless until the wheel comes to a complete stop. Never attempt to remove the cut-off wheel from the cut while the wheel is in motion otherwise kickback may occur. Investigate and take corrective action to eliminate the cause of wheel pinching or snagging.
  • Do not restart the cutting operation in the workpiece. Let the wheel reach full speed and carefully re-enter the cut. The wheel may bind, walk up or kickback if the power tool is restarted in the workpiece.
  • Support panels or any oversized workpiece to minimize the risk of wheel pinching and kickback. Large workpieces tend to sag under their own weight. Supports must be placed under the workpiece near the line of cut and near the edge of the workpiece on both sides of the wheel.
  • Use extra caution when making a “pocket cut” into existing walls or other blind areas. The protruding wheel may cut gas or water pipes, electrical wiring or objects that can cause kickback.
Safety warnings specific for wire brushing operations:
  • Be aware that wire bristles are thrown by the brush even during ordinary operation. Do not overstress the wires by applying excessive load to the brush. The wire bristles can easily penetrate light clothing and/or skin.
  • Allow brushes to run at operating speed for at least one minute before using them. During this time no one is to stand in front or in line with the brush. Loose bristles or wires will be discharged during the run-in time.
  • Direct the discharge of the spinning wire brush away from you. Small particles and tiny wire fragments may be discharged at high velocity during the use of these brushes and may become imbedded in your skin.

Additional safety instructions

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.
  • Do not touch rotating parts – risk of injury!
  • Always hold the tool with both hands on the grips provided. Keep the grips clean and dry.
  • Wait until the product stops completely before you lay it down.
  • Wear protective gloves also when changing the accessory tool. Touching the accessory tool presents a risk of injury (cuts or burns).
  • 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.
  • 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.
  • Risk of injury by falling tools and/or accessories. Before starting work, check that the battery and installed accessories are secure.
  • Do not secure a belt hook to this power tool.
  • Keep the air vents clear at all times. Risk of burn injuries due to blocked air vents!
Power tool use and care
  • Do not set the product down with its weight resting on the battery.

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.

Description

Product overview

Image alternative
  1. Clamping nut with collet
  2. Spindle
  3. Neck / front grip
  4. Spindle lock button
  5. Lockable on/off switch
  6. Grip
  7. Adjusting knob for speed
  8. Battery status indicator
  9. Battery release button
  10. Battery
  11. Dust filter
  12. Open-ended wrench, 17 mm
  13. Work-area light

Intended use

The product described is a hand-held, cordless die grinder for dry working on metal. The die grinder is designed for grinding and cutting with cut-off wheels, polishing, milling and wire-brushing.

Use only accessory tools with a shank diameter appropriate for the collet mounted on the product. Comply with the information in the technical data.
Image alternative
  • 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 the product for wet grinding.
Do not use the product to work on hazardous or flammable materials (e.g. asbestos, wood, etc.).

Items supplied

Die grinder, open-ended wrench, operating instructions
Other system products approved for use with this product can be found at your local Hilti Store or at: www.hilti.group

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.
WARNING
Risk of injury by a falling battery!
  • If the release button is pressed with a battery inserted in the product, subsequently check that the battery is correctly re-engaged and secure.
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.

Technical data

Weight without battery B22
1.5 kg
(3.3 lb)
Rated speed
10,000 /min …25,000 /min
(166.7 Hz …416.7 Hz)
Required minimum speed, accessory tool
≥ 25,000 /min
(≥ 416.7 Hz)
Working diameter, accessory tool
≤ 55 mm
(≤ 2.2 in)
Shank diameter, accessory tool
Collet, 6 mm
6 mm
Collet, 1⁄4 inch
1/4 in
Width across flats, spindle
12 mm
Width across flats, clamping nut
17 mm
Storage temperature
−20 ℃ …70 ℃
(−4 ℉ …158 ℉)
Ambient temperature for operation
−17 ℃ …60 ℃
(1 ℉ …140 ℉)

Battery

Battery operating voltage
21.6 V
Weight, battery
See the section headed "Intended use"
Ambient temperature for operation
−17 ℃ …60 ℃
(1 ℉ …140 ℉)
Storage temperature
−20 ℃ …40 ℃
(−4 ℉ …104 ℉)
Battery charging starting temperature
−10 ℃ …45 ℃
(14 ℉ …113 ℉)

Preparations at the workplace

WARNING
Risk of injury by inadvertent starting!
  • Before inserting the battery, make sure that the product is switched off.
  • Remove the battery before making any adjustments to the power tool or before changing accessories.
Observe the safety instructions and warnings in this documentation and on the product.

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

WARNING
Risk of injury by short circuit or falling battery!
  • Before inserting the battery, make sure that the contacts on the battery and the contacts on the product are free of foreign matter.
  • Make sure that the battery always engages correctly.
  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.

Changing the accessory tool

CAUTION
Risk of injury! The accessory tool may be hot and/or have sharp edges.
  • Wear protective gloves when changing the accessory tool.
  • Never lay down a hot accessory tool on a flammable surface.
CAUTION
Risk of damage to the collet if the clamping nut is tightened on an empty collet.
  • Never tighten the clamping nut without an accessory tool inserted in the collet.
CAUTION
Risk of injury and damage if the accessory tool runs out of true or is damaged.
  • Do not use damaged accessory tools. Before starting work, check that the die grinder runs smoothly, with little vibration.
Image alternative
  1. Press and hold down the spindle lock button.
  2. Use the open-ended wrench to loosen the clamping nut.
  3. Remove the accessory tool.
  4. Insert an accessory tool.
  5. Exposed shank length L0 cannot be more than 10 mm. The shank of the accessory tool must be inserted at least 20 mm into the collet.
  6. Use the open-ended wrench to tighten the clamping nut.
  7. Release the spindle lock button.
  8. Check that the accessory tool is held securely.

Fall arrest

WARNING
Risk of injury by falling tool and/or accessory!
  • Use only the Hilti tool tether recommended for your product.
  • Prior to each use, always check the attachment point of the tool tether for possible damage.
Comply with the national regulations for working at heights.
As drop arrester for this product, use only a combination of the Hilti retaining strap and the Hilti tool tether #2261970.
  • 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.

Operation

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

Switching on

  1. Press the rear section of the on/off switch.
  2. Slide the on/off switch forward.
    • The motor runs.
  3. Lock the on/off switch.

Types of work

Image alternative
  1. Switch the tool on.
  2. By turning the adjusting knob for speed, set a speed that is suitable for the accessory tool and the planned use.
  3. Use only the intended working face of the accessory tool. Example: Never try to use the flat side of an abrasive cut-off wheel for grinding. Abrasive cut-off wheels are intended for cutting at their peripheral edge.
  4. Secure the workpiece. Never try work with a small workpiece held in one hand and the die grinder held in the other. Always hold the die grinder with both hands on the grips provided.
  5. Guide the die grinder to the workpiece. Apply moderate pressure and do not press the accessory tool into the material.

Switching off

  • Press the rear section of the on/off switch.
    • The on/off switch jumps into the off position and the motor stops.

Care and maintenance

WARNING
Risk of injury with battery inserted !
  • Always remove the battery before carrying out care and maintenance tasks!
Care of the product
  • 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.
Care of the Li‑ion batteries
  • 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.
Maintenance
  • 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.
To help ensure safe and reliable operation, use only genuine Hilti spare parts and consumables. Spare parts, consumables and accessories approved by Hilti for use with your product can be found at your Hilti Store or online at: www.hilti.group

Changing clamping nut

CAUTION
Risk of damage to the collet if the clamping nut is tightened on an empty collet.
  • Never tighten the clamping nut without an accessory tool inserted in the collet.
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  1. Press and hold down the spindle lock button.
  2. Use the open-ended wrench to release the clamping nut.
  3. If applicable, pull the accessory tool out of the collet.
  4. Unscrew the clamping nut with collet from the die grinder.
  5. Position the new clamping nut with collet on the spindle, engage the threads and loosely screw the clamping nut on to the spindle. Do not tighten the clamping nut.

Transport and storage of cordless tools and batteries

Transport
    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.
Storage
    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

If a problem occurs, always observe the status indicator of the battery. See the section headed Status indicators of the Li‑ion battery .
If the trouble you are experiencing is not listed in this table or you are unable to remedy the problem by yourself, please contact Hilti Service.
Trouble or fault
Possible cause
Action to be taken
The battery runs down more quickly than usual.
Very low ambient temperature.
  • Allow the battery to warm up slowly to room temperature.
The battery doesn’t engage with an audible click.
The retaining lug on the battery is dirty.
  • Clean the retaining lug and re-insert the battery.
The product or battery gets very hot.
Electrical fault
  • Switch the product off immediately, remove the battery, keep it under observation, allow it to cool down and contact Hilti Service.
Product does not develop full power.
A battery with inadequate capacity was used.
  • Use a battery with adequate capacity.
The motor has no braking effect.
Battery is discharged.
  • Change the battery and charge the empty battery.
Product is momentarily overloaded.
  • Switch the product off and then on again.
Product vibrates severely.
Accessory tool is not compatible with the product.
  • Use only accessory tools that comply with the specifications in the technical data.
Accessory tool is damaged, out of true or imbalanced.
  • Use only accessory tools that are in faultless condition.
Product faulty
  • If the accessory tool can be ruled out as the cause, consult Hilti Service.
LEDs of the battery show nothing
Battery faulty.
  • Contact Hilti Service.

Disposal

WARNING
Risk of injury due to incorrect disposal! Health hazards due to escaping gases or liquids.
  • DO NOT send batteries through the mail!
  • Cover the terminals with a non-conductive material (such as electrical tape) to prevent short circuiting.
  • Dispose of your battery out of the reach of children.
  • Dispose of the battery at your Hilti Store , or consult your local governmental garbage disposal or public health and safety resources for disposal instructions.
Image alternative Most of the materials from which Hilti products are manufactured can be recycled. The materials must be correctly separated before they can be recycled. In many countries, your old tools, machines or appliances can be returned to Hilti for recycling. Ask Hilti Service or your Hilti sales representative for further information.
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  • 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

Accessories, system products and more information about your product can all be found here.

China RoHS (Restriction of Hazardous Substances)
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This table is valid for the China market.

Hilti Li-ion batteries

Instructions for safety and useThis documentation uses the term battery to describe rechargeable Hilti Li-ion battery packs containing several Li-ion cells joined together. These batteries are to be used in Hilti power tools exclusively. Use only genuine Hilti batteries!
Description Hilti batteries have cell-management and cell-protection systems.
The batteries are composed of cells that contain lithium-ion storage materials capable of providing high specific energy density. Li-ion cells have a minimal memory effect, but they are very susceptible to external impact, deep discharge, and high temperatures.
The products approved for use with Hilti batteries can be found in your Hilti Store or at: www.hilti.group
Safety
  • 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 .
What to do in case of damaged batteries
  • 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!
What to do in case of dysfunctional 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 .
What to do in case of a battery fire
    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.
In the case of a battery that does not cool down, or a smoking or burning battery:
  • 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 .
Shipping and storage
  • 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.
Maintenance and disposal
  • 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.