SMT 6‑22

About these operating instructions

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

Explanation of symbols

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.

Product-dependent 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
	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.
	Diameter
	Design no-load oscillation frequency
	Direct current (DC)
	Wear eye protection
	Wear ear protection

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

  Multitool	SMT 6‑22
  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 power tool safety warnings

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.
  

Additional safety instructions

• 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.
  
• Risk of injury due to falling tools and/or accessories. Before starting work, check that the battery and installed accessories are secure.
  
• Do not touch oscillating parts - risk of injury!
  
• Wear eye protection, a hard hat and ear protection and suitable respiratory protection while the product is in use.
  
• 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.
  
• Do not look directly into the light source (LEDs) incorporated in the power tool and do not direct the light at other persons’ faces.
  
• 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.
  
• Keep the air vents clear at all times. Risk of burn injuries due to blocked air vents!
  
• Use clamps or some other suitable means to firmly secure the workpiece to a stable supporting surface. Holding the workpiece only by hand or against your body leaves it unstable, which can lead to loss of control.
  
• Before beginning work, check the working area for concealed electric cables or gas and water pipes. External metal parts of the product could give you an electric shock or cause an explosion if you accidentally damage an electric cable or a gas or water pipe.
  
• Use the product for dry sanding/grinding only. Water entering a power tool will increase the risk of electric shock.
  
• Do not attempt to scrape off moistened materials (e.g. wallpaper) and do not perform scraping work on damp underlying materials. Water entering a power tool will increase the risk of electric shock.
  
• Do not pretreat the surface to be worked with liquids that contain solvents. The heat generated in the materials during scraping operations can result in the production of toxic vapors.
  
• Keep your hands away from the cutting area. Do not reach underneath the workpiece. Risk of injury due to contact with the saw blade.
  
• Always hold the product firmly with both hands and keep a firm footing at all times. The product is guided more safely by two hands.
  
• Wear protective gloves when changing the accessory tool. The accessory tool runs hot when in use and there is a risk of burn injury.
  
• Remove dirt, chips and other foreign matter that adheres to the accessory tool and/or the tool mount. Otherwise the accessory tool cannot be tightened correctly.
  
• Switch the product on only after you have brought it to the working position. Switch the product on only when the accessory tool is not in contact with the workpiece.
  
• Wait until the product has come to a complete stop before you lay it down.
  
• Do not use accessories not specifically intended and recommended for this power tool by the tool manufacturer. The fact that an accessory can be attached to the power tool does not necessarily mean that it can be used safely.
  

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. Clamping lever
   
2. On/off switch
   
3. Grip
   
4. Buttons for speed stages
   
5. Installation opening for accessories
   
6. Battery
   
7. Work-area light (LED)
   
8. Tool neck
   
9. Tool holder / clamping jaws
   
10. Parallel guide
    
11. Depth gauge
    
12. Saw blade
    
13. Positioning screw
    
14. Securing collar
    
15. Clamping screw
    
16. Release button, battery
    
17. Battery status indicator
    

Intended use

The product described is a multitool. It is designed for sawing and cutting wood materials, plastic, plaster, non-ferrous metals and fasteners (e.g. unhardened nails or clips). It is also suitable for working soft wall tiles and for dry-sanding/grinding and scraping small surfaces. It is particularly suitable for working close to and flush with edges.
The product is suitable for dry use only, without water for cooling.

• 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

Multitool, securing collar, parallel guide, depth gauge, saw blade, 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.
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.

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 62841

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

Sound power level (LWA)	87 dB(A)
Uncertainty for the sound power level (KWA)	3 dB(A)
Emission sound pressure level (LpA)	76 dB(A)
Uncertainty for the sound pressure level (KpA)	3 dB(A)

Total vibration

Vibration emission value for sanding (ah)	B 22‑55	3.4 m/s²
	B 22‑255	2.3 m/s²
Vibration emission value for sawing plywood (ah)	B 22‑55	2.5 m/s²
	B 22‑255	4.2 m/s²
Uncertainty (K)		1.5 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.
   

Installing securing collar and depth gauge or parallel guide

1. Slacken the clamping screw of the securing collar, using the hex on the depth gauge or the parallel guide.
   
2. Align the 4 positioning lugs with the notches in the tool neck and slip the securing collar on to the tool neck.
   
3. Turn the securing collar to the desired position.
   
4. Tighten the clamping screw.
   
5. Slacken the positioning screw of the securing collar.
   
6. Insert the depth gauge or the parallel guide into the securing collar and secure it with the positioning screw.
   

Fitting the accessory tool

1. Set the accessory tool on a flat surface.
   
2. Open the clamping lever completely by turning it counter-clockwise past the first detent to the stop.
   
   • The clamping jaws of the tool holder are closed.
     
3. Align the star-shaped tool mount of the product with its counterpart on the accessory tool and set the product on the accessory tool.
   
4. Close the clamping lever completely by turning it clockwise in a controlled manner past the first detent to the stop.
   
   • The clamping jaws of the tool holder open, holding the accessory tool securely engaged.
     
5. Check that the accessory tool is held securely.
   

Removing accessory tool

1. Open the clamping lever by turning it two clicks counter-clockwise.
   
   • The accessory tool is released and separates from the tool holder.
     
2. Close the clamping lever by turning it clockwise.
   

Fall arrest

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.
  

Switching on

• Slide the on/off switch forward.
  
  • The motor runs.
    

Switching off

• Slide the on/off switch back.
  
  • The engine stops.
    

Setting speed stage

The product has 6 speed stages; use the + and - buttons to select the speed stage you want to use.
You can select a speed stage before you switch on the product or change the speed stage while the product is running.
The LEDs show the current speed stage.
Setting with product switched off

• Press the + button or the - button.
  
• The indicator for speed stages is activated and shows the stage currently selected.
  
• Use the +  / - buttons to select the speed stage.
  
• The indicator for the speed stages is deactivated after 15 seconds.
  
• The speed stage you selected is saved in memory.
  

Setting with product switched on

• Use the +  / - buttons to select the speed stage.
  
• The speed stage you select is set and remains saved in memory when you switch the product off.
  

Working with the multitool

The multitool is designed for a multiplicity of tasks. Depending on the accessory tool installed, you can use the product to saw, sand/grind or scrape or to remove grout.
CuttingPlunge-cut saw blades are ideal for precision cuts in tight spaces, close to edges or flush with a surface.

• Set the multitool to a medium speed stage. This gives you more control for plunge-cutting.
  
• After making the initial plunge cut, you can select a higher speed stage for faster progress.
  
• Apply moderate pressure and do not force the accessory tool into the material. Severe vibrations during the plunge stage of the cutting process are a sign that you are applying too much pressure.
  

Grinding

• After switching on, allow the product to reach its full oscillation frequency before you touch the accessory tool against the workpiece.
  
• Lift the product clear of the workpiece before switching off.
  
• When sanding or grinding, use a continuous movement and apply light pressure. Use the entire sanding/grinding surface, not just the tip.
  
• Rotate the backing pad at regular intervals. This will enable you to achieve even wear of the abrasive accessory tool and the backing pad.
  

Scraping

• Set the multitool to a low to medium speed stage.
  
• Position the accessory tool at the point where material has to be removed.
  
• Apply moderate pressure. Excessive pressure can result in damage to the underlying material.
  

Removing grout

• Before starting work measure the width of the grouted joint and select an appropriate accessory tool.
  
• Set the multitool to a medium to high speed stage.
  
• Use a back-and-forth movement and remove the grout in multiple passes.
  
• Make sure that the accessory tool is in line with the joint and do not apply too much sideways pressure to the accessory tool during the operation.
  
• Use the carbide-grain edging on the accessory tool as an indicator for plunge depth. To avoid damaging the underlying material, do not go deeper than the line where the carbide-grain edging stops.
  

Using depth gauge

The depth gauge enables you to control the plunge depth, for example when you plunge cut and need to make sure that objects or surfaces behind the workpiece are not damaged.

1. Install the securing collar and the depth gauge.
   
   If the accessory tool is set at an angle, slacken the clamping screw and turn the securing collar until the depth gauge parallels the accessory tool. Retighten the clamping screw.
   
2. Slacken the positioning screw.
   
3. Set distance "X " between the tip of the accessory tool and the tip of the depth gauge.
   
4. Tighten the positioning screw.
   

Using parallel guide

The parallel guide can be used as a cutting guide or as a depth gauge.
Using parallel guide as cutting guideUse the parallel guide to make straight cuts paralleling an edge.
If applicable, make sure that clamps do not obstruct the free movement of the multitool.

WARNING
Risk of injury and damage due to kickback. If a corner of the accessory tool comes out below or above the workpiece, kickback occurs and can lead to loss of control.

Make sure the accessory tool remains fully plunged in the workpiece over the entire stroke (oscillation).

• Install the securing collar and the parallel guide.
  
• Make sure that the parallel guide is parallel with the accessory tool.
  
• Slacken the clamping screw of the securing collar.
  
• Turn the securing collar so that the accessory tool will plunge into the workpiece at an angle.
  
• Retighten the clamping screw.
  
• Open the positioning screw.
  
• Set a cutting depth at which the accessory tool remains fully plunged in the workpiece over the entire oscillating stroke.
  
• Tighten the positioning screw.
  
• Position the multitool with the parallel guide on the edge. Guide the multitool along the edge for the full length of the cut.
  

Using parallel guide as depth gaugeUse the parallel guide as a depth gauge when you are working with segment saw blades.

• Install the securing collar and the parallel guide.
  
• Slacken the positioning screw.
  
• Set distance "X " between the parallel guide and the tips of the teeth of the segment saw blade.
  
• Tighten the positioning screw.