HILTI NURON SC 5ML-22 Cordless Circular Saw for Metal User Guide

HILTI NURON SC 5ML-22 Cordless Circular Saw for Metal

Original Operating Instructions

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 used

Warnings

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

DANGER

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

Warnings

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

CAUTION

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

Symbols in the documentation

The following symbols are used in this document:

Read the operating instructions before use.

Instructions for use and other useful information
Dealing with recyclable materials
Do not dispose of electric equipment and batteries as household waste

Symbols in the illustrations

The following symbols are used in illustrations:

These numbers refer to the corresponding illustrations found 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 illustrations and refer to the numbers used in

the product overview section

This symbol is intended to draw special attention to certain points when handling the product.
Wireless data transfer

Product-dependent symbols

The following symbols can be used on the product:

Wear eye protection

Revolutions per minute
Revolutions per minute
Rated speed
Diameter
Protection class II (double-insulated)

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.

Declaration of conformity

We declare, on our sole responsibility, that the product described here complies with the applicable directives and standards. A copy of the declaration of conformity can be found at the end of this documentation.
The technical documentation is filed here:
Hilti Entwicklungsgesellschaft mbH | Tool Certification | Hiltistrasse 6 | 86916 Kaufering, Germany

Safety

General power tool safety warnings

Warnings

Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.
Save all warnings and instructions for future reference.

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

• 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.

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 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 battery pack, picking up or carrying the tool. Carrying power tools with your finger on the switch or energizing 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, clothing and gloves 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.

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 battery pack 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. 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.

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.

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.

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

• This power tool is intended to function as a grinder 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.
• Operations such as sanding, wire brushing or polishing are not recommended to be performed with this power tool. Operations for which the power tool was not designed may create a hazard and cause personal 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 accessory must be at least equal to the maximum speed 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 guarded or controlled.
• Threaded mounting of accessories must match the grinder spindle thread. For accessories mounted by flanges, the arbour hole of the accessory must fit the locating diameter of the flange. 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.
• Do not use a damaged accessory. Before each use inspect the accessory such as abrasive wheels for chips and cracks, backing pad 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 the power tool by insulated gripping surfaces only, when performing an operation where the cutting tool may contact hidden wiring. Contact with a “live” wire will also make exposed metal parts of the power tool “live” and could give the operator an electric shock.
• Position the cord clear of the spinning accessory. If you lose control, the cord may be cut or snagged and your hand or arm may be pulled into the spinning accessory.
• 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.
• 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 warnings

Kickback is a sudden reaction to a pinched or snagged rotating wheel, backing pad, 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 at the point of the binding.
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. Always use auxiliary handle, if provided, for maximum control over kickback or torque reaction during start-up. The operator can control torque reactions or kickback forces, if proper precautions are taken.

• Never place your hand near the rotating accessory. Accessory may kickback over your hand.

• Do not position your body in the area where power tool will move if kickback occurs. Kickback will propel the tool in direction opposite to the wheel’s movement at the point of snagging.

• 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 saw chain woodcarving blade or toothed saw blade. Such blades create frequent kickback and loss of control.

Safety warnings specific for grinding and abrasive cutting-off operations:

• Use only wheel types that are recommended for your power tool and the specific guard designed for the selected wheel. Wheels for which the power tool was not designed cannot be adequately guarded and are unsafe.
• The grinding surface of center depressed wheels must be mounted below the plane of the guard lip. An improperly mounted wheel that projects through the plane of the guard lip cannot be adequately protected.
• The guard must be securely attached to the power tool and positioned for maximum safety, so the least amount of wheel is exposed towards the operator. The guard helps to protect the operator from broken wheel fragments, accidental contact with wheel and sparks that could ignite clothing.
• Wheels must be used only for recommended applications. For example: do not grind with the side of cut-off wheel. Abrasive cut-off wheels are intended for peripheral grinding, side forces applied to these wheels may cause them to shatter.
• Always use undamaged wheel flanges that are of correct size and shape for your selected wheels Proper wheel flanges support the wheel thus reducing the possibility of wheel breakage. Flanges for cut-off wheels may be different from grinding wheel flanges.
• Do not use worn down wheels from larger power tools. Wheel intended for larger power tool is not suitable for the higher speed of a smaller tool and may burst.

Additional safety warnings specific for abrasive cutting-off operations:

• Do not “jam” the 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 binding of the wheel in the cut and the possibility of kickback or wheel breakage.

• Do not position your body in line with and behind the rotating wheel. When the wheel, at the point of operation, is moving away from your body, the possible kickback may propel the spinning wheel and the power tool directly at you.

• When wheel is binding 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 binding.

• 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.

Additional safety instructions

Personal safety

• Never tamper with or modify the product or accessories in any way.
• Operate the power tool only together with the safety devices that belong to it.
• If you use the power tool without a dust extractor, always wear light respiratory protection when undertaking work that creates dust.
• Always hold the power tool firmly with both hands on the grips provided.
• Wear ear protectors. Exposure to noise can cause hearing loss.
• Improve the blood circulation in your fingers by relaxing your hands and exercising your fingers during breaks between working.
• The power tool is not intended for use by debilitated persons who have received no special training.
• Do not switch the power tool on until it is at the workplace and has been brought to its working position.
• Remove the battery if a problem occurs with the power tool, whenever you change accessory tools or accessories and before storing or transporting the power tool.
• Do not work overhead with the power tool.
• Do not attempt to brake the power tool by applying lateral pressure to the saw blade.
• Before inserting the battery, check that the saw is switched off and that the switch-on interlock is activated. In this way you avoid injuries due to unintentional starting of the power tool.
• While the power tool is running, do not touch the clamping flange or the clamping screw.
• Before you lay down the power tool, wait until the power tool has come to a complete stop.
• Before changing the accessory tool, wait until the power tool has cooled down.
• Never press the drive spindle lock button while the saw blade is rotating.
• Never direct the power tool toward persons.
• The switch-on interlock must always be activated whenever you change accessories or the battery, for transport and when you are going to stow the power tool away.
• Always use a saw blade suitable for the material and the condition of the workpiece.
• Adapt forward pressure to the saw blade and the material being cut. In this way you prevent the saw blade from stalling and possibly causing kickback.
• Metal cuttings are sharp and can lead to injuries. Keep your clothing closed so that cuttings cannot find their way into your gloves, shoes or other parts of your clothing.
• Pay attention to the direction in which the metal cuttings fly. The metal cuttings are hot and can lead to fire, burns and cut injuries.
• Avoid overheating the tips of the saw blade teeth.
• The rated speed of the accessory tool must be at least equal to the maximum speed marked on theb power tool. Accessories running faster than their rated speed can disintegrate and fly apart.
• Do not work in an environment heavily contaminated with dust.
• 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.
• Always wear a dust mask that meets the requirements of the application.
• Before starting work, check the hazard class of the dust that will be produced when working. Use an industrial vacuum cleaner with an officially approved protection classification in compliance with locally applicable dust protection regulations.
• Comply with national health and safety requirements.
• Use clamps or some other practical means to secure the workpiece and keep it in a stable position. Attempting to stabilize the workpiece by hand or with your body is inadequate and can result in loss of control. Do not have the workpiece held in position by a helper.
• Do not look directly into the light source (LEDs) incorporated in the power tool and do not direct the light at other persons’ faces.
• Risk of injury by falling tools and/or accessories. Before starting work, check that installed accessories are secure.
• Bring the saw blade into contact with the workpiece only when the circular saw is switched on.
• Use only saw blades recommended by Hilti that comply with the EN 847-1 standard.

Electrical safety

• Before beginning work, check the working area for concealed electric cables or gas and water pipes. External metal parts of the power tool may give you an electric shock if you damage an electric cable accidentally.

Using and handling power tools with care

• Do not use cutting discs for grinding.
• Tighten the accessory tool and flange securely. If the accessory tool and flange are not tightened securely, the accessory tool may work loose from the spindle due to the braking effect of the motor after switching off.
• Comply with the manufacturer’s instructions for handling and storing grinding discs.

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 1

1. Auxiliary grip
2. Switch-on interlock
3. On/off switch
4. Grip
5. Battery release button
6. Battery status indicator
7. Battery
8. Chip collector
9. Pivoting guard operating lever
10. Arbor
11. Base plate
12. Pivoting guard
13. Direction-of-rotation arrow
14. Fence
15. Cutting line indicator
16. LED / viewing window
17. Guard
18. Spindle lock button
19. Clamp for fence
20. Hex key
21. Clamping lever for cutting depth adjustment
22. Mounting flange
23. Clamping flange
24. Clamping screw

Intended use
The product described is a cordless circular saw. It is designed for cutting metal or materials similar to metal. Use only saw blades approved for the product that comply with the specifications set out in the technical data (e.g. diameter, speed of rotation, thickness, material, etc…). Grinding and cut-off wheels and saw blades made of highly alloyed high speed steel (HSS) are not permissible. Do not use the saw to cut wood or wood-like materials, plastics, gypsum board, gypsum fiberboard and composite materials.

• For this product, use only Hilti Nuron lithium-ion batteries of the B 22 series. For this product, Hilti recommends the use of the batteries stated in the table at the end of these operating instructions.
• For these batteries, use only Hilti chargers of the type series listed at the end of these operating instructions.

Items supplied
Circular saw, saw blade, hex key, fence, chip collector, operating instructions. Other system products approved for use with this product can be found at your local Hilti Store or at:
www.hilti.group

Accessories
Clamping flange, mounting flange, clamping screw
Status indicators of the Li­ion 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
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.

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.

Recharge the battery.

If the LED again starts quick-flashing after the bat-

tery has been charged, consult Hilti Service.

One (1) LED quick-flashes yellow| The Li-ion battery or the product in which it is in- serted is overloaded, too hot or too cold, or experi- encing some other fault.

Bring the product and the battery to the recom- mended 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.

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 re- maining 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.

Fence

Use of the single arm fence allows precise cuts to be made along the edge of the workpiece, or strips of even width to be cut. The fence can be fitted on either side of the base plate.

Technical data

Product properties

(6.6 lb)

Saw blade disc thickness| 1.2 mm

(0.05 in)

Kerf width| 1.6 mm

(0.06 in)

Saw blade arbor size| 15.8 mm

(0.62 in)

Rated speed under no load| 3,500 /min
Maximum cutting depth| 57 mm

(2.2 in)

Storage temperature| −20 ℃ … 70 ℃

(−4 ℉ … 158 ℉)

Ambient temperature for opera- tion| −17 ℃ … 60 ℃

(1 ℉ … 140 ℉)

Battery

operating instructions

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

Removing the battery

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

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 the Hilti tool tether #2261971.

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

Comply with the operating instructions of the Hilti tool tether.

Removing the saw blade 2
WARNING
Risk of burns and cut injuries at saw blade, clamping screw and clamping flange The consequences can be burns and cut injuries.

• Wear protective gloves when changing saw blades.

1. Press and hold down the spindle lock button.
2. Use the hex key to slacken the clamping screw.
3. Remove the clamping screw and the clamping flange.
4. Open the lower guard and remove the saw blade.

If necessary, the mounting flange can be removed for cleaning.
Installing the saw blade 3
Check that the blade to be fitted complies with the technical requirements and that it is well-sharpened. A sharp saw blade is an essential requirement for a perfect cut.

1. Clean the mounting flange and the clamping flange.

2. Slip the mounting flange right way round on to the arbor.

3. Open the lower guard.

4. Insert the new saw blade.
   Note the direction-of-rotation arrows on the saw blade and on the product. They must point in the same direction.

5. Install the outer clamping flange the right way round.

6. Install the clamping screw.

7. Insert the hex key into the saw blade clamping screw.

8. Press and hold down the spindle lock button.

9. Use the hex key to tighten the clamping screw.

10. Check that the saw blade is seated correctly.

11. Insert the hex key into the hole provided for the purpose.

Adjusting the cutting depth 4

1. Release the cutting depth adjustment clamping lever.
2. Lift the product in a scissoring movement and set the cutting depth.
3. Tighten the cutting depth adjustment clamping lever.

Installing fence 5

1. Squeeze the clip together and hold it in this position.
2. Push the fence into the base plate.
   • You can set the cutting width to suit your application.
3. Release the clip.

Installing guide rail adapter 6
The guide rail adapter is available as an accessory.

1. Remove the fence, if fitted.
2. Hook the base plate into the rear retaining lugs of the guide rail adapter.
3. Set the base plate down on the guide rail adapter.
   • The base plate is flush on the guide rail adapter.
4. Lock the guide rail adapter by pressing in the two sliders as far as they will go.

Emptying the chip collector 7
WARNING
Risk of injury! Hot or sharp metal cuttings/chips present a hazard.

• Wear protective gloves when emptying the chip collector.
  • Pull the chip collector away from the tool to the rear.
  • Swing the two halves of the chip collector apart and empty out its contents.
  • Push the chip collector onto the guard until in engages in position.

Operation

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

1. Press and hold down the switch-on interlock and press the on/off button.
   • You can release the switch-on interlock as soon as you have the on/off switch held down.

Switching off

1. Release the on/off switch.
   • The switch-on interlock jumps automatically into the locked position.

Sawing along a line 8
Saw only flat workpieces that offer a big enough contact surface to accommodate the whole of the base plate.

1. Position the workpiece so that the saw blade is free to rotate beneath it.
2. Secure the workpiece to prevent movement.
3. Bring the front edge of the base plate into contact with the workpiece.
   • Saw blade clear of the workpiece.
4. Switch the product on.
5. Guide the saw along the cutting line at a suitable speed for it to cut smoothly through the workpiece.

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 Li­ion 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

Cleaning the guard

1. Remove the saw blade.
2. Clean the parts of the guard carefully with a dry brush.
3. Use a suitable tool to remove deposits or cuttings from the inside surfaces of the parts of the guard.
4. Install the saw blade.

Cleaning the ejector

1. Remove the saw blade.
2. Clean the chip / dust channel with a brush.
3. Install the saw blade.

Checks after cleaning and maintenance
After cleaning or maintenance, check that all safety devices are fitted and that they function faultlessly.

1. To check the pivoting guard, open the guard fully by moving the guard operating lever.
   • The pivoting guard must close quickly and completely when the guard operating lever is released.
2. Check that the moving parts are in full working order, e.g. not binding or rubbing.
3. Examine the product for breakages and other visible damage.

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 Li­ion battery. If the trouble you are experiencing is not listed in this table or you are unable to rectify the problem by yourself, contact Hilti Service.

LEDs of the battery show

nothing

| Battery defective| ▶| Contact Hilti Service.
The on/off button cannot be pressed, i.e. the button is

locked.

| Not a fault (safety function).| ▶| Press the switch-on interlock.
Running speed suddenly drops considerably.| The battery is discharged.| ▶| Charge the battery.
Saw advance pressure is too high.| ▶| Reduce advance pressure and

switch the power tool back on.

Chips are not transported away; they drop on to the

base plate

| The chip / dust channel is blocked.| ▶| Clean the chip / dust channel.

→ page 13

The product doesn’t restart by itself after the saw blade

has stalled.

| The overload cut-out has been activated.| ▶| Press the switch-on interlock and the on/off button again.
Trouble or fault| Possible cause| Action to be taken
---|---|---
The battery does not engage

with an audible click.

| The retaining lugs on the battery

are dirty.

| ▶ Clean the retaining lug and

re-insert the battery.

Product vibrates more than

usual.

| The saw blade is fitted incorrectly.| ▶ Remove the saw blade and refit

it correctly.

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.

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.

• 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.

FCC statement

(applicable in US) / IC statement (applicable in Canada)

This device complies with Part 15 of the FCC Rules and RSS-210 of lC. Operation is subject to the following two conditions:

1. this device may not cause harmful interference, and
2. this device must accept any interference received, including interference that may cause undesired operation.

Further information
For more information on operation, technology, environment and recycling, follow this link:
qr.hilti.com/manual?id=2276670
This link is also to be found at the end of the documentation, in the form of a QR code.

BATTERY

Hilti Corporation
LI-9494 Schaan
Tel.:+423 234 21 11
Fax:+423 234 29 65
www.hilti.com

Hilti = registered trademark of Hilti Corp., Schaan

References

• HILTI Country selector

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