HILTI NURON SB 4­22 Portable Band Saw User Guide

HILTI NURON SB 4­22 Portable Band Saw

Information about the documentation

About this documentation

• Read this documentation before initial operation or use. This is a prerequisite for safe, trouble-free handling and use of the product.
• Observe the safety instructions and warnings in this documentation and on the product.
• Always keep the operating instructions with the product and make sure that the operating instructions are with the product when it is given to other persons.

Explanation of symbols 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.

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 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.

Product-dependent symbols

Symbols on the product

• Wear a hard hat
• Wear eye protection
• Wear protective gloves

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

The manufacturer declares, on his sole responsibility, that the product described here complies with the applicable legislation 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 | D-86916 Kaufering, Germany

Safety

Safety instructions

Basic information concerning safety
WARNING! Read all safety precautions and other instructions. Failure to observe the safety instructions and other instructions can result in damage to the tool and/or serious injury.
Keep all safety precautions and instructions for future reference.

Proper preparation of the working area

• Keep your workplace clean and well lit. Cluttered or poorly lit workplaces invite accidents.
• Wear personal protective equipment and always wear protective goggles.
• It is recommended that rubber gloves and non-skid shoes are worn when working outdoors.
• Keep children clear. Keep everyone clear of your work zone.
• When working on walls or ceilings, make sure that the surrounding work area is secured. Falling objects or tools could cause serious injury.
•  Avoid unusual body positions. Maintain firm footing and balance at all times. This will give you better control of the product in unexpected situations.
• Do not work off a ladder.

General safety measures

• Use product, accessories, insert tools, etc. in accordance with these instructions. Take the working conditions and the work to be performed into account. Use of equipment for applications other than those intended can result in hazardous situations.

• To reduce the risk of injury, use only genuine Hilti tools and accessories.
  Requirements to be met by users

• Follow the instructions concerning care and maintenance.

• Never tamper with or modify the power tool in any way.

• The tool is intended for professional use. The tool may be operated, serviced and repaired only by authorized, trained personnel. This personnel must be specially informed of any possible hazards.

• Do not operate the machine if your full attention is not on the job.

Safety instructions for band saws

Hold power tool by insulated gripping surfaces, when performing an operation where the cutting accessory may contact hidden wiring. Cutting accessories contacting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock.

Additional safety instructions

• Keep your hands away from the cutting area and the bandsaw blade. Keep your second hand on the auxiliary handle or the motor housing. When both hands are on the saw they cannot be injured by the saw while it is in use.
• Use the product and accessories only when they are in perfect working order.
• Never tamper with or modify the product or accessories in any way.
•  Do not touch rotating parts – risk of injury!
• Wear eye protection, a hard hat and ear protection while the product is in use.
• Wear protective gloves when changing the accessory tool. Touching the accessory tool can result in cuts and burns.
• Dust produced by grinding, sanding, cutting and drilling can contain dangerous chemicals. Some examples are: lead or lead-based paints; brick, concrete and other masonry products, natural stone and other products containing silicates; certain types of wood, such as oak, beech and chemically treated wood; asbestos or materials that contain asbestos. Determine the exposure of the operator and bystanders by means of the hazard classification of the materials to be worked. Implement the necessary measures to restrict exposure to a safe level, for example by the use of a dust collection system or by the wearing of suitable respiratory protection. The general measures for reducing exposure include:
• working in an area that is well ventilated,
• avoidance of prolonged contact with dust,
• directing dust away from the face and body,
• wearing protective clothing and washing exposed areas of the skin with water and soap.
• When ripping always use a fence or straight edge guide. This improves the accuracy of the cut and reduces the chance of the blade binding.
• Do not reach underneath the workpiece. The guard cannot protect you from the saw blade protruding below the workpiece.
• Never hold the workpiece with your hand or other part of the body. Secure the workpiece in a sturdy holder. It is important to secure the workpiece firmly in order to minimize the risk of body contact, blade binding, and loss of control.
• Always hold the product firmly with both hands on the grips provided for the purpose and position your arms to absorb kickback forces.
• Keep the grips dry, clean and free from oil and grease.
• Position yourself off to one side of the blade, never bring the blade into line with your body. The saw can jump backward toward you if kickback occurs!
• Make sure you have a firm stance, especially for overhead work. A sudden break-through can affect your balance.
•  When undertaking break-through work, secure the zone on both sides of the workpiece. Pieces of debris can fall and cause injuries.
•  If the saw blade binds or when you interrupt work for any reason, switch off the saw and hold it motionless in the material until the saw blade comes to a complete stop. Never attempt to remove the saw from the workpiece or pull the saw back while the blade is in motion, as otherwise the saw could kick back.
•  When restarting a saw in the workpiece, center the saw blade in the kerf and check that saw teeth are not in engagement with the workpiece.
•  Use extra caution when sawing into walls or other blind areas. As it enters the material the blade might encounter a hidden obstruction, resulting in kickback.
•  Before starting the cut, check that the bandsaw blade is correctly installed. An incorrectly installed bandsaw blade can bind and cause a kickback.
•  Take frequent breaks and do physical exercises to improve the blood circulation in your fingers. High vibration during long periods of work can lead to disorders of the blood vessels and nervous system in the fingers, hands and wrists.
•  Do not look directly into the light source (LED) of the product and do not aim the beam at other persons’ faces. Risk of dazzling or eye damage.
•  Do not attempt to secure a belt hook in the installation opening for accessories. Use only the belt hook supplied.
•  Risk of injury by falling tools and/or accessories. Before starting work, check that the battery and installed accessories are secure.

Electrical safety

• 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.
• When cutting through pipes, e.g. when carrying out demolition or installation work, check to ensure that the pipes no longer contain liquids and empty them if necessary. When cutting through pipes, hold the product above the level of the pipe you are cutting through. The product is not protected against ingress of moisture.

Careful handling and use of electric tools

• Use only bandsaw blades of the specified size.
• Do not use dull or damaged bandsaw blades. They cause higher friction, binding or kickback of the bandsaw blade.
•  Comply with the manufacturer’s instructions for handling and storing bandsaw blades.

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. page 11
  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. Switch-on interlock
2. Control switch
3. Grip (insulated gripping surface)
4. Side handle (insulated gripping surface)
5. Clamping lever, bandsaw blade
6. Direction-of-rotation arrow on casing
7. Bandsaw blade
8.  Cutting guide
9. Belt hook
10. Roller for bandsaw blade
11. Rubber ring
12. Blade guide
13.  Installation opening for accessories
14.  Battery
15. Saw blade guard
16. Saw blade guard fastening screw
17. Battery release button
18. Battery status indicator

Intended use

The product described is a cordless bandsaw. It is designed for cutting metals and plastics. The product is designed for two-handed operation.

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

Possible misuse

• Do not use the power tool to cut bricks, concrete, cellular concrete, natural stone or tiles.
•  Do not use the product to cut pipes containing liquids or gas.
• Do not saw into unknown materials.

Items supplied

Bandsaw, side handle, belt hook, 2 screws, operating instructions
Other system products approved for use with this product can be found at your local Hilti Store or at: www.hilti.group
Hilti Nuron Li-ion batteries can indicate state of charge, fault messages and the battery’s state of health. 3.5.1 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.

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 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.

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.

Technical data

mm or 733 mm x 12.4 mm x 0.35 mm
Ambient temperature for operation| −17 ℃ … 60 ℃
Storage temperature| −20 ℃ … 70 ℃

Battery

Noise information and vibration values in accordance with EN 60745

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 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 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.

Total vibration

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. → page 6

 Inserting the battery

WARNING
Risk of injury by short circuit or falling battery!

• Before inserting the battery, make sure that the contacts on the battery and the contacts on the product are free of foreign matter.
• Make sure that the battery always engages correctly.

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

Removing the battery

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

Inserting/changing the bandsaw blade 2

WARNING
Risk of damage An unsuitable or incorrectly fitted bandsaw blade can damage the saw.

•  Use only bandsaw blades that are suitable for this saw.
• Be sure to install the bandsaw blade right way round for the direction of travel.

1. Slacken the 2 screws securing the blade cover and remove the cover.
2. Turn the side handle counterclockwise to unscrew it from the casing of the bandsaw.
3. Pivot the clamping lever through 180 ° in the direction of rotation until it is seated against the stop.
4. Slip the bandsaw blade into the cutting guide and into the blade guides, one after the other. The back of the blade must touch the bearings in the bottom of the blade guides.
   •  Note the direction of rotation indicator arrows on the bandsaw blade and the bandsaw. They must point in the same direction.
5. Slip the bandsaw blade over both rollers, one after the other.
6. Pivot the clamping lever through 180 ° in the direction of rotation until it is seated against the stop.
7. Check that the bandsaw blade tool is correctly guided over both rollers.
8. Refit the blade cover.
   •  Make sure that the cover is correctly seated.
9. Install the side handle. → page 10
10. Check that the bandsaw blade is correctly seated by repeatedly switching the bandsaw on and then off again.

Installing belt hook 3

•  Secure the belt hook with the 2 screws.
•  Tighten the screws hand-tight. Before each use, always check that the belt hook is secure.

Operation

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

Switching on

1.  Activate the switch-on interlock.
2. Press the control switch.

For safety reasons, the control switch cannot be locked and has to be held down while the tool is in operation.

Alignment, workpiece 5

• Bring the workpiece and the bandsaw into alignment.
  Incorrect alignment increases the risk of kickback.

Switching off

WARNING
Risk of injury by saw run-on.

• Do not lift the product away from the workpiece until it has stopped completely.
•  Wait until the product stops completely before you lay it down.

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

Replacing the rubber ring 6

1. Remove the bandsaw blade. → page 9
2. Check that the guide grooves are free of foreign matter and clean them if necessary.
3. Remove the rubber ring.
4. Pull the new rubber ring over the roller for the bandsaw blade.
5. Push the rubber ring fully into the guide recess.
   • The rubber ring lies correctly in the guide recess.
   • The rubber ring does not lie correctly in the guide recess.
   • Realign the rubber ring.
6. Re-install the bandsaw blade. → page 9

Transport and storage of cordless tools and batteries

CAUTION
Accidental starting during transport !

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

Activate the switch-on interlock.
Product does not start.| Bandsaw blade blocked| ▶ Check whether the saw blade is fitted correctly and/or damaged.
LEDs of the battery show nothing| Battery defective| ▶  Contact Hilti Service.

Disposal

WARNING
Risk of injury due to incorrect disposal! Health hazards due to escaping gases or liquids.

• DO NOT send batteries through the mail!
•  Cover the terminals with a non-conductive material (such as electrical tape) to prevent short circuiting.
• Dispose of your battery out of the reach of children.
•  Dispose of the battery at your Hilti Store, or consult your local governmental garbage disposal or public health and safety resources for disposal instructions.

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.

Further information

For more information on operation, technology, environment and recycling, follow this link: qr.hilti.com/manual/?id=2289590&id=2289592
This link is also to be found at the end of the documentation, in the form of a QR code.

References

• HILTI Country selector

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