HILTI SC 70WA22 Cordless Circular Saw Instruction Manual

HILTI SC 70WA22 Cordless Circular Saw

Original operating instructions

Information about the operating instructions

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:

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

WARNING!
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 personal injury or damage to the equipment or other property.

Symbols in the Operating Instructions
The following symbols are used in these operating instructions:

Symbols in illustrations
The following symbols are used in illustrations:

Product-dependent symbols

Symbols
The following symbols can be used on the product:

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

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

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 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 the 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 that 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 the 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. The 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. The 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 a 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. The use of dust collection can reduce dust-related hazards.
• Do not let familiarity gained from the 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 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 the 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 the eyes, 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 instructions for all saws
Cutting procedures

• DANGER: Keep hands away from the cutting area and the blade. Keep your second hand on the auxiliary handle, or motor housing. If both hands are holding the saw, they cannot be cut by the blade.
• Do not reach underneath the workpiece. The guard cannot protect you from the blade below the workpiece.
• Adjust the cutting depth to the thickness of the workpiece. Less than a full tooth of the blade teeth should be visible below the workpiece.
• Never hold the workpiece in your hands or across your leg while cutting. Secure the workpiece to a stable platform. It is important to support the work properly to minimise body exposure, blade binding, or loss of control.
• Hold the power tool by insulated gripping surfaces, 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.
• When ripping, always use a rip fence or straight-edge guide. This improves the accuracy of the cut and reduces the chance of blade binding.
• Always use blades with the correct size and shape (diamond versus round) of arbour holes. Blades that do not match the mounting hardware of the saw will run off-centre, causing a loss of control.
• Never use damaged or incorrect blade washers or bolts. The blade washers and bolts were specially designed for your saw, for optimum performance and safety of operation. Kickback causes and related warnings
• kickback is a sudden reaction to a pinched, jammed or misaligned saw blade, causing an uncontrolled saw to lift up and out of the workpiece toward the operator;
• when the blade is pinched or jammed tightly by the kerf closing down, the blade stalls and the motor reaction drives the unit rapidly back toward the operator;
• if the blade becomes twisted or misaligned in the cut, the teeth at the back edge of the blade can dig into the top surface of the wood causing the blade to climb out of the kerf and jump back toward the operator.
• Kickback is the result of saw misuse and/or incorrect operating procedures or conditions and can be avoided by taking proper precautions as given below.
• Maintain a firm grip with both hands on the saw and position your arms to resist kickback forces.
• Position your body to either side of the blade, but not in line with the blade. Kickback could cause the saw to jump backwards, but kickback forces can be controlled by the operator if proper precautions are taken.
• When the blade is binding, or when interrupting a cut for any reason, release the trigger and hold the saw motionless in the material until the blade comes to a complete stop. Never attempt to remove the saw from the work or pull the saw backward while the blade is in motion or kickback may occur. Investigate and take corrective actions to eliminate the cause of blade binding.
• When restarting a saw in the workpiece, centre the saw blade in the kerf so that the saw teeth are not engaged in the material. If a saw blade binds, it may walk up or kick back from the workpiece as the saw is restarted.
• Support large panels to minimise the risk of blade pinching and kickback. Large panels tend to sag under their own weight. Supports must be placed under the panel on both sides, near the line of cut and near the edge of the panel.
• Do not use dull or damaged blades. Unsharpened or improperly set blades produce narrow kerf causing excessive friction, blade binding and kickback.
• Blade depth and bevel-adjusting locking levers must be tight and secure before making the cut. If blade adjustment shifts while cutting, it may cause binding and kickback.
• Use extra caution when sawing into existing walls or other blind areas. The protruding blade may cut objects that can cause kickback.

Additional safety instructions

Personal safety

1. Modification of the power tool is not permitted.
2. Always hold the machine with both hands on the grips provided.
3. Keep the grips dry, clean and free from oil and grease.
4. Wear ear protectors.
5. Exposure to noise can cause hearing loss.
6. Respiratory protection must be worn if the power tool is used without a dust removal system for work that creates dust.
7. Operate the tool only together with the safety devices that belong to it.
8. Improve the blood circulation in your fingers by relaxing your hands and exercising your fingers during breaks between working.
9. The power tool is not intended for use by inexperienced persons who have received no special training.
10. Keep the power tool out of reach of children.
11. Do not switch the product on before it is at the workplace.
12. Remove the battery before storing or transporting the power tool.
13. Do not work overhead with the product.
14. Do not attempt to break the product by applying lateral pressure to the saw blade.
15. The kerf must be free of obstructions.
16. Do not saw into screws and nails etc.
17. Do not touch the clamping flange or the clamping screw while the power tool is running.
18. Never press the drive spindle lock button while the saw blade is rotating.
19. Never direct the power tool toward persons.
20. Adjust the pressure applied to the saw blade and the material being cut so that the blade does not stall, possibly causing a kickback.
21. Avoid overheating the tips of the saw blade teeth.
22. When cutting plastic, melting of the plastic should be avoided.
23. Dust from materials, such as paint containing lead, some wood species, concrete/masonry/stone containing silica, and minerals as well as metal, may be harmful.
24. Contact with or inhalation of the dust may cause allergic reactions and/or respiratory or other diseases to the operator or bystanders.
25. Certain kinds of dust are classified as carcinogenic such as oak and beech dust, especially in conjunction with additives for wood conditioning (chromate, wood preservative).
26. Material containing asbestos may be handled only by specialists. Use a dust removal system whenever possible.
27. To achieve a high level of dust collection, use a suitable vacuum cleaner.
28. When indicated, wear a respirator appropriate for the type of dust generated. Ensure that the workplace is well-ventilated.
29. Follow national requirements for the materials you want to work with.
30. Before beginning the work, check the hazard classification of the dust that will be produced.
31. Use an industrial vacuum cleaner with an officially approved protection classification in compliance with locally applicable dust protection regulations.
32. Observe the national health and safety requirements.

Electrical safety

Before beginning work, check the working area (e.g. using a metal detector) to ensure that no concealed electric cables or gas and water pipes are present. External metal parts of the power tool may become life, for example, when an electric cable is damaged accidentally. This presents a serious risk of electric shock.

Careful handling and use of batteries

• Observe the special guidelines applicable to the transport, storage and use of lithium-ion batteries.
• Do not expose batteries to high temperatures and keep them away from fire. There is a risk of explosion.
• Do not disassemble, crush or incinerate batteries and do not subject them to temperatures over 80°C (176°F). This presents a risk of fire, explosion or injury through contact with caustic substances.
• Never continue to use or attempt to charge damaged batteries, e.g. batteries with cracks, broken parts, bent or pushed-in / pulled-out contacts).
• Do not use the battery as a power source for other unspecified power tools or appliances.
• If the battery is too hot to touch it may be defective. In this case, place the power tool in a nonflammable location, well away from flammable materials, where the battery can be kept under observation and allowed to cool down. Contact Hilti Service after the battery has cooled down.

A dditional safety instructions for circular saws

• Bring the saw blade into contact with the workpiece only when the circular saw is switched on.
• The path of the saw must be free of obstructions above and below the workpiece. Do not saw into screws, nails or similar objects.
• Never work overhead with a circular saw.
• Never attempt to brake the saw blade by applying lateral pressure.
• Avoid overheating the tips of the saw blade teeth.
• Always use a saw blade that is suitable for the material you are going to see.
• Use only saw blades recommended by Hilti that comply with the EN 847-1 standard. 2.5 Careful handling and use of batteries
• Observe the special guidelines applicable to the transport, storage and use of lithium-ion batteries.
• Do not expose batteries to high temperatures, direct sunlight or fire.
• Do not disassemble, crush or incinerate batteries and do not subject them to temperatures over 80 °C (176 °F).
• Do not use or charge batteries that have suffered mechanical impact, have been dropped from a height or show signs of damage. In this case, always contact your Hilti Service.
• 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. Contact Hilti Service

Description

Product Overview

• Single-arm parallel guide
• Cutting angle presets (22.5°, 45°, 50°)
•  Spindle lock button
• Auxiliary grip & On/off switch ( Switch-on interlock ) Grip + Charge status and fault indicator (Li-ion battery)
• Release buttons (also used to activate the charge status indicator)
• Battery Clamping lever for cutting depth adjustment
• Hex key
• Small base plate
• LED illumination
• Front clamping lever for the parallel guide
• Clamping lever for cutting angle adjustment
• Cutting depth scale
• Hose connector (chip deflector)
• Guard
• Pivoting guard operating lever
• Rear clamping lever for the parallel guide (only with a large base plate)
• Pivoting guard
• Arbor
• Direction-of-rotation arrow
• Twin-arm parallel guide
• cutting line indicator
• 45° cutting line indicator
• Cutting angle scale
• Large base plate
• Clamping screw
• Clamping flange
• Mounting flange
•  0° indicator on the base plate
•  1°- 50° indicator on the base plate
• Guide rail adapter 2
• Rear retaining lug
• Front retaining lug
• 0° indicator
• 1°- 50° indicator

Intended use

The product described is a cordless circular saw. It is designed for sawing wood or wood-like materials, plastics, drywall panels, gypsum fibre boards and composite materials. The circular saw is equipped with a removable connector for an optional vacuum cleaner/dust removal hose. This connector is designed to fit standard suction hoses. In order to connect the vacuum cleaner hose to the saw, the use of a suitable adapter may be necessary.

• The use of saw blades not in compliance with the stated specifications (e.g. diameter, speed of rotation, thickness) or the use of cut-off and grinding wheels or saw blades made from highly alloyed high-speed steel (HSS) is not permissible. Sawing metals is not permissible. Do not use the product to cut tree branches or trunks.
• Use only the Hilti Li-ion batteries of the B 22 series with this product.
• Use only the Hilti battery chargers of the C4/36 series for charging these batteries.

Li-ion battery display
The charge status of the Li-ion battery and malfunctions of the power tool is indicated by the display on the Li-ion battery. The charge status of the Li- ion battery is displayed after pressing one of the two battery release buttons Battery charge status cannot be displayed while the control switch is pressed and for up to 5 seconds after releasing the control switch. If the battery display LEDs blink, please observe the instructions given in the Troubleshooting section.

or is completely dis- charged.
4 LEDs blink, the power tool is not ready for use.| The power tool is overloaded or has overheated.

Parallel guide
The single-arm parallel guide can be used to make accurate cuts along the edge of a workpiece or to rip strips of equal width. The parallel guide can be fitted on either side of the base plate.

Items supplied
Circular saw, saw blade, hex key, parallel guide, vacuum cleaner hose connector, operating instructions (optional: guide rail adapter) Spare parts, consumables and accessories approved by Hilti for use with the product can be found at
your local Hilti Store or online at: www.hilti.group.

Accessories
Clamping flange, mounting flange, clamping screw.

Technical data

| SC 70W­A22
---|---
Rated voltage| 21.6 V
Weight in accordance with EPTA procedure 01| 4.8 kg
Specified blade diameter| 190 mm
Saw blade disc thickness| 0.7 mm … 1.5 mm
Kerf width| 1.5 mm … 2 mm
Saw blade arbor size| 30 mm
Rated speed under no load| 3,500 /min
Maximum cutting depth at 0°| 70 mm
Maximum cutting depth at 45°| 51 mm
Maximum cutting depth at 50°| 45 mm
| SC 70W­A22
---|---
Bevel cutting angle| 0° … 50°
Operating temperature| −10 ℃ … 50 ℃
Storage temperature range (without battery)| −30 ℃ … 70 ℃

Circular saw

Battery

Noise information and vibration values are determined in accordance with EN 62841 The sound pressure and vibration values given in these instructions have been measured in accordance with a standardized test and may be used to compare one power tool with another. They may be used for a preliminary assessment of exposure. The data given represents the main applications of the power tool. However, if the power tool is used for different applications, with different accessory tools, or is poorly maintained, the data may vary. This may significantly increase exposure over the total working period.

| SC 70W­A22
---|---
Sound power level (LWA)| 103 dB(A)
Uncertainty for the sound power level (KWA)| 3 dB(A)
Sound pressure level (LpA)| 92 dB(A)
Uncertainty for the sound pressure level (KpA)| 3 dB(A)

An accurate estimation of exposure should also take into account the times when the power tool is switched off, or when it is running but not actually being used for a job. This may significantly reduce exposure over the total working period. Identify additional safety measures to protect the operator from the effects of noise and/or vibration, for example: maintaining the tool and the accessories, keeping the hands warm, and organization of work patterns. Noise emission values determined in accordance with EN 62841

| SC 70W­A22
---|---
Vibration emission value for sawing in wood (Ah, W)| 0.93 m/s²
Uncertainty (K)| 1.5 m/s²

Preparations at the workplace
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 charger are clean and dry.
3. Use an approved charger to charge the battery. 7

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 buttons.
2. Remove the battery from the tool.

Removing the saw blade

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. Remove the battery.
2. Insert the hex key into the saw blade clamping screw.
3. Press the spindle lock button and hold it in this position.
4. Turn the saw blade clamping screw with the hex key until the spindle lock button engages fully.
5. Release the clamping screw by turning the hex key in the direction of the direction-of-rotation arrow.
6. Remove the clamping screw from the outer clamping flange.
7. Open the pivoting guard by swinging it to the side and then remove the saw blade.
8. If necessary, the mounting flange can be removed for cleaning.

Fitting the Saw Blade

CAUTION
Risk of damage! Unsuitable or incorrectly fitted saw blades may damage the saw. Only use blades that are suitable for this saw. Observe the direction-of- rotation arrow on the saw blade. Use only saw blades equipped with a rated maximum permissible speed that is at least as high as the maximum speed stated on the product. 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. Remove the battery.
2. Clean the mounting flange and the clamping flange.
3. Fit the mounting flange onto the arbour the right way around.
4. Open the pivoting guard.
5. Fit the new saw blade.
6. Install the outer clamping flange the right way around.
7. Insert the clamping screw.
8. Insert the hex key into the saw blade clamping screw.
9. Press the arbour lock button.
10. Secure the clamping flange with the clamping screw by turning the hex key in the direction opposite to the direction-of-rotation arrow. The spindle lock button engages.
11. Before using the power tool, check that the saw blade is correctly seated and tightened securely.

Adjusting the cutting depth

1. Remove the battery.
2. Release the cutting depth adjustment clamping lever.
3. Lift the product in a scissor movement and set the desired cutting depth by closing the clamping lever.

The cutting depth should always be set to a depth of approx. 5 to 10 mm greater than the thickness of the material to be cut. The depth setting can be read from the scale and pointer at the rear of the blade guard.

Setting the mitre cut angle

1. Remove the battery.
2. Release the cutting angle adjustment clamping lever.
3. Pivot the product into the desired position.
4. The cutting angle preset makes it easy to set the maximum angle (22.5°, 45°, 50°)
5. Tighten the cutting angle adjustment clamping lever.

Sawing along a line
At the front edge of the base plate of the circular saw is a line indicator for straight cuts and mitre cuts (0° and 45°). This permits accurate cutting at the desired mitre angle. The edge of the line indicator corresponds to the inside of the saw blade. There is a cutting line indicator at the opening for the saw blade at the front end of the base plate.

1. Secure the workpiece to prevent movement.
2. Position the workpiece so that the saw blade is free to rotate beneath it.
3. Check to ensure that the on/off switch on the power tool is in the “off” position.
4. Position the forward section of the saw’s base plate on the workpiece but do not bring the blade into contact with the workpiece.
5. Insert the battery.
6. Press and hold down the switch-on interlock and switch the product on by pressing the on/off button.
7. Guide the product along the cutting line on the workpiece at a suitable speed.

Installing/adjusting the parallel guide

1. Remove the battery.
2. Screw the clamping screw into the base plate, leaving enough space to slide the parallel guide through.
3. Slide the parallel guide under the clamping screw.
4. Set the parallel guide to the correct width for the cut.
5. Tighten the clamping screw.

The parallel guide (single-arm/twin-arm) can be fitted on either side of the base plate. The swingarm parallel guide can be used only with the large base plate The parallel guide can be used to make accurate cuts along the edge of a workpiece or to rip strips of equal width.

Fitting the guide rail adapter
The saw can be equipped with a guide rail adapter which is available as an accessory. When using saws with a small base plate, please use a guide rail adapter that fits the guide rail.

1. Remove the battery.
2. Remove the parallel guide, if fitted.
3. Fit the base plate into the side retaining channels of the guide rail adapter.
4. Fully insert the base plate into the guide rail adapter.
5. Lock the guide rail adapter by pressing in the two sliders as far as they will go.

Work
Switching on
Press and hold down the switch-on interlock and switch the product on by pressing the on/off button.

Switching off
Release the on/off switch to stop the machine.

Longitudinal cuts at 0°

1. Place the circular saw on the guide rail with the groove marked “0°” on the rib on the rail.
2. Press and hold down the switch-on interlock and switch the product on by pressing the on/off button.
3. Guide the product along the rail and through the workpiece at a suitable speed.

Longitudinal cuts at angles up to 50°
Set the angle.
WARNING

1. Risk of collision when making bevel cuts! Collision between saw blade and guide rail.
2. Set the saw on the guide rail with the correct groove engaging the rib of the rail. The saw blade will otherwise collide with the guide rail.
3. Place the saw on the guide rail with the groove marked “1°- 50°” on the rib of the rail.
4. Press and hold down the switch-on interlock and switch the product on by pressing the on/off button.
5. Guide the product along the rail and through the workpiece at a suitable speed.

Making cuts at an angle across the surface of the workpiece

1. Position the guide rail with the zero mark at the edge of the workpiece and then pivot the rail until the desired angle shown on the angle scale is opposite the zero mark.
2. The cutting angle indicated is the angle of deviation from a straight, right-angled cut.
3. Secure the guide rail with the two screw clamps.
4. Place the circular saw on the guide rail with the groove marked “0°” on the rib on the rail.
5. Press and hold down the switch-on interlock and switch the product on by pressing the on/off button.
6. Guide the product along the rail and through the workpiece at a suitable speed.

Using the saw without a dust and chip removal system

1. Check that the sawdust is ejected without obstruction.
2. If required, the hose connector can be removed from the blade guard by slackening the hex socket screw with the hex key supplied with the product.

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 silicone cleaning agents 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 silicone cleaning agents 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

WARNING
The danger of electric shock! Improper repairs to electrical components may lead to serious injuries including burns.

• Repairs to the electrical section of the tool or appliance may be carried out only by trained electrical specialists.
• 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, consumables and accessories.
• 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 safety guard

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

Procedure if the chip/dust channel is blocked

1. Remove the battery.
2. Clean the chip/dust channel
3. Remove the saw blade if necessary.
4. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the operation of the product.

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

Transport and storage
Transport of cordless power tools and batteries

CAUTION
Accidental starting during transport!

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

Storage of cordless power tools and batteries
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 been 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 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.

battery.
Battery is discharged.| ▶ Charge the battery.
The battery is too hot or too cold.| ▶ Bring the battery to the correct ambient temperature.
1 LED flashes.| Battery is discharged.| ▶ Charge the battery.
The battery is too hot or too cold.| ▶ Bring the battery to the correct ambient temperature.
4 LEDs flash.| The circular saw was overloaded briefly.| ▶ Release the on/off switch and then press it again.
The overheating prevention cut-out has been activated.| ▶ Allow the circular saw to cool down and clean the air vents.
Trouble or fault| Possible cause| Action to be taken
---|---|---
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.| Battery is discharged.| ▶| Charge the battery.
Saw advance pressure is too high.| ▶| Reduce advance pressure and switch the power tool back on.
Chips / cuttings are not trans- ported into the chip collector and thus fall onto the base plate.| The chip collector is full.| ▶| Empty the chip collector.
The chip ejector channel is blocked.| ▶| Clean the ejector. 13
The saw blade stalls.| Saw advance pressure is too high.| ▶| Reduce advance pressure and switch the power tool back on.
The battery runs down more quickly than usual.| Battery condition is not optimal.| ▶| Replace the battery.
The battery does not en- gage with an audible “double click”.| The retaining lugs on the battery are dirty.| ▶| Clean the retaining lugs and push the battery in until it engages. Contact Hilti Service if the problem persists.
Trouble or fault| Possible cause| Action to be taken
---|---|---
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.| Battery is discharged.| ▶| Charge the battery.
Saw advance pressure is too high.| ▶| Reduce advance pressure and switch the power tool back on.
Chips / cuttings are not trans- ported into the chip collector and thus fall onto the base plate.| The chip collector is full.| ▶| Empty the chip collector.
The chip ejector channel is blocked.| ▶| Clean the ejector. 13
The saw blade stalls.| Saw advance pressure is too high.| ▶| Reduce advance pressure and switch the power tool back on.
The battery runs down more quickly than usual.| Battery condition is not optimal.| ▶| Replace the battery.
The battery does not en- gage with an audible “double click”.| The retaining lugs on the battery are dirty.| ▶| Clean the retaining lugs and push the battery in until it engages. Contact Hilti Service if the problem persists.

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!

RoHS (Restriction of Hazardous Substances)
Click on the link to go to the table of hazardous substances: qr.hilti.com/r2937785. There is a link to the RoHS table, in the form of a QR code, at the end of this document.

Manufacturer’s warranty
Please contact your local Hilti representative if you have questions about the warranty conditions. Hilti = registered trademark of Hilti Corp., Schaan

References

• HILTI Country selector
• HILTI Country selector
• Главная страница - Hilti Россия

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