Hilti AG 500-A22 User Manual

AG 500-A22

Printed: 26.01.2017 | Doc-Nr: PUB / 5292879 / 000 / 00Printed: 26.01.2017 | Doc-Nr: PUB / 5292879 / 000 / 01

English en

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1 Information about the documentation

1.1 About this documentation

• Read this documentation before initial operation or use. This is a 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.

1.2 Explanation of symbols used

1.2.1 Warnings

Warnings alert persons to hazards that may occur when handling or using the product. The following signal words are used in combination with a symbol:

DANGER! Draws attention to an imminent hazard that will lead to serious personal injury or fatality.

WARNING! Draws attention to a potential hazard that could lead to serious personal injury or fatality.

CAUTION! Draws attention to a potentially dangerous situation that could lead to minor personal injury or material damage.

1.2.2 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

1.2.3 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 illustration and refer to the numbers used in the key in the product overview section.

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

1.3 Product-dependent symbols

1.3.1 Symbols on the product

The following symbols are used on the product:

Wear eye protection.

Rated speed

Revolutions per minute

Diameter

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1.4 Product information

Hilti products are designed for professional use and may be operated, serviced and maintained only by

trained, authorized personnel. This personnel must be informed of any particular hazards that may be encountered. The product and its ancillary equipment may present hazards when used incorrectly by untrained personnel or when used not as directed.

The type designation and serial number are printed on the type identification 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

Angle grinder AG 500-A22

Generation 02

Serial no.

2 Safety

2.1 Safety instructions

2.1.1 General safety precautions for power tools

WARNING! Read all safety precautions and other instructions. Failure to observe the safety

precautions and other instructions may result in electric shock, fire and/or serious injury. Keep all safety precautions and instructions for future reference.

Working area safety

▶ Keep your working area clean and well lit. Cluttered or dark working areas can cause accidents. ▶ Do not operate the power tool 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 bystanders, children and visitors away while operating the power tool. Distractions may cause

you to lose control of the tool.

Electrical safety

▶ Do not expose the power tool to rain or wet conditions. Water entering a power tool will increase the

risk of electric shock.

▶ Do not allow your body to come into contact with grounded surfaces such as pipes, radiators,

ovens and refrigerators. There is an increased risk of electric shock if your body is grounded.

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 the power tool may result in serious personal injury.

▶ Adopt the correct posture when working. Maintain proper footing and balance at all times. This

will allow you to control the power tool better, even in unexpected situations.

▶ Wear your personal protective equipment and always wear protective glasses. Depending on the

type of power tool you are using and its purpose, wearing safety equipment such as a dust mask, slip-resistant safety shoes, a hard hat or hearing protection will reduce the risk of injury.

▶ Dress properly. Do not wear loose clothing or jewelry. Keep your hair, clothing and gloves away

from moving parts. Loose clothes, jewelry or long hair may be caught in moving parts.

▶ Avoid starting the tool accidentally. Make sure that the power tool is switched off beforeconnecting

it to the battery and before picking it up or carrying it. Carrying power tools with your finger on the

switch or plugging in power tools that are already switched on may cause accidents.

▶ Remove accessory tools or wrenches before switching the power tool on. An accessory tool or a

wrench left attached to a rotating part of the power tool may cause personal injury.

▶ If devices are provided for connecting dust extraction and collection equipment, make sure these

are connected and used correctly. The use of a dust extraction system can reduce dust-related

hazards.

Using and handling the power tool

▶ Do not overload the tool. Use the correct power tool for your application. The correct power tool

will do the job better and more safely within the performance range for which it is designed.

▶ Do not use a power tool if it has a faulty on/off switch. Any power tool that cannot be controlled with

the switch is dangerous and must be repaired.

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▶ Remove the battery from the power tool before making any adjustments, changing accessories or

storing the tool. This precaution reduces the risk of the power tool starting accidentally.

▶ Store power tools out of reach of children when not in use. Do not allow persons who are not

familiar with the tool or these instructions to operate it. Power tools are dangerous in the hands of

untrained users.

▶ Maintain power tools properly. Check that moving parts are in correct working order and do not

jam, and check whether any parts are broken or so damaged that correct operation of the power tool cannot be guaranteed. If any parts are damaged, have these parts repaired before using the tool. Many accidents are caused by poorly maintained power tools.

▶ Keep cutting tools sharp and clean. Properly maintained tools with sharp cutting edges are less likely

to jam and are easier to control.

Using and handling the cordless power tool

▶ Use only the specified batteries in the power tools. Use of any other batteries may present a risk of

injury and fire.

▶ Recharge the batteries only with the chargers specified by the manufacturer. A charger that is

suitable for a certain type of battery may present a risk of fire when used with other types of battery.

▶ When the battery is not in use, keep it away from other metal objects such as paper clips, coins,

keys, nails, screws, or other small metal objects that could cause bridging between the terminals.

A short circuit between the battery terminals may cause burns or a fire.

▶ Liquid may leak from the battery if used incorrectly. Avoid contact with this liquid. Liquid leaking

from the battery may cause skin irritation or burns. If contact accidentally occurs, rinse with water. Seek medical attention if the liquid comes into contact with the eyes.

2.1.2 Common safety instructions for grinding, polishing and working with wire brushes

▶ This power tool is intended for use as a grinder, wire brush, or cut-off tool. Observe all safety

warnings, instructions, illustrations and specifications provided with this tool. Failure to follow all

instructions listed below can result in electric shock, fire and/or serious injury.

▶ This power tool is not suitable for use as a sander or polisher. Use of the power tool for purposes for

which it is not intended may be hazardous and cause injury.

▶ Do not use accessories not specifically intended and recommended for this power tool by the tool

manufacturer. The fact that an accessory can be attached to your power tool does not necessarily

mean that it can be used in safety.

▶ 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 disintegrate and fly apart.

▶ The outside diameter and the thickness of the accessory tool must be within the ranges stated for

your power tool. Incorrectly sized accessory tools cannot be adequately guarded or controlled.

▶ Accessory tools with threaded insert must match the thread of the drive spindle. Flange-mounted

accessory tools must have a hole diameter matching the mandrel diameter of the flange. Accessory

tools not correctly fixed to the power tool rotate unevenly, vibrate excessively and can cause control of the tool to be lost.

▶ Do not use damaged accessory tools. Always check accessory tools before use. Check abrasive

wheels for chipping and cracks. Check grinding discs for cracks and heavy wear and tear, and check wire brushes for loose or broken wires.

▶ If power tool or accessory is dropped, inspect for damage or install an undamaged accessory.

After inspecting and installing an accessory tool, position yourself and bystanders away from the plane of the rotating tool and run the power tool at maximum no-load speed for one minute. If an accessory tool has been damaged it will normally break during this test period.

▶ Wear personal protective equipment. Wear a face shield, eye protection or safety goggles, as

appropriate to the application.

▶ As appropriate, wear a dust mask, ear defenders, protective gloves or a workshop apron to keep

off abrasive particles and particles of workpiece material. Make sure your eyes are protected against

the flying debris created by various machining 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 the immediate area of operation.

▶ Hold the power tool by the insulated gripping surfaces only, when carrying out work in which the

accessory tool can come into contact with concealed wiring. If the accessory tool comes into contact

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with a live wire, metal parts of the power tool can also become live, causing the operator to receive an electric shock.

▶ Never lay the power tool down before the accessory tool has come to a complete stop. If the

rotating accessory tool were allowed to touch the surface on which you are going to place the power tool, you could lose control of the power tool.

▶ Never start the power tool while carrying it around. Your clothing could be snagged by the rotating

accessory tool, pulling the accessory tool into your body.

▶ Clean the ventilation slots of the power tool at regular intervals. The motor’s fan draws dust into the

housing and a build-up of metallic dust can cause electrical hazards.

▶ Do not operate the power tool near flammable materials. Sparks could ignite these materials.

Kickback

WARNING! Snagging or jamming brings the rotating accessory tool to an abrupt stop. If this

happens the power tool whips round in the direction opposite to the accessory tool's direction of rotation, the grinding disc can catch and break out or cause a kickback.

By adopting suitable precautionary measures the operator can control the kickback and reaction forces:

▶ Maintain a firm grip on the power tool and position your body and arms to absorb kickback forces. ▶ Always use the auxiliary handle, if provided, for maximum control over kickback forces or torque

reaction during start-up.

▶ Always keep your hand well clear of the rotating accessory tool. Kickback could cause the accessory

tool to pass across your hand.

▶ Keep your body clear of where the power tool will move if kickback occurs. Kickback will propel the

power tool in the direction opposite to the wheel’s direction of rotation at the point of snagging.

▶ Exercise special care when working at corners, sharp edges, etc. Avoid allowing the accessory

tool to bounce off or jam in the workpiece. The rotating accessory tool evinces a tendency to jam at

corners and sharp edges, or if it bounces off the workpiece. This causes 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 instructions for grinding and abrasive cutting: ▶ Use only abrasive wheel types approved 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.

▶ Offset grinding discs must be fitted in such a way that their grinding face does not project past

the plane of the guard edge. An incorrectly fitted grinding disc projecting past the plant of the guard

edge cannot be adequately shielded.

▶ The guard must be securely attached to the power tool and positioned for maximum safety, so

that the smallest possible segment of the abrasive disc is exposed toward the operator. The guard

helps protect the operator from flying fragments, accidental contact with the abrasive disc, and flying sparks that could ignite clothing.

▶ Use abrasive discs for the recommended applications only. ▶ Never try to use the flat of an abrasive cut-off wheel for grinding. Abrasive cut-off wheels are

intended for peripheral grinding. Side forces applied to these wheels can cause them to shatter.

▶ Always use an undamaged clamping flange of the correct size and shape for your selected grinding

disc. The correct flange supports the grinding disc, reducing the risk of disc breakage. Flanges for

cut-off wheels can differ from those for other grinding discs.

▶ Do not use worn-down, originally larger-diameter grinding discs from larger power tools. Grinding

discs intended for a larger power tool are not suitable for the higher speed of a smaller tool and can break.

Safety instructions for abrasive cutting: ▶ Do not "bind" 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.

▶ Keep clear of the areas in front of and behind the rotating cut-off 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.

▶ If the wheel binds or when you interrupt 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 rotating cut off-wheel from the cut, because kickback can occur. Investigate and take corrective

action to eliminate the cause of wheel binding.

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▶ Do not switch the power tool on again while the wheel is in the cut. Let the wheel reach full speed

and carefully re-insert it into the cut. The wheel can bind, walk up or kick back if the power tool is

restarted with the wheel in the cut.

▶ Support panels or large workpieces to minimize the risk of wheel bind and kickback. Large

workpieces tend to sag under their own weight. Supports must be placed under the workpiece on both sides of the cutting wheel, both close to the line of cut and near the edge of the workpiece.

▶ Use extra caution when "plunge cutting" into existing walls or other blind areas. Kickback can

occur if the wheel slices into gas or water pipes, electric wiring or other objects as it plunge-cuts.

Safety instructions for wire brushing: ▶ Be aware that wire bristles are thrown by the brush even during ordinary operation. Do not overload

the wires by applying excessive pressure. The wire bristles can easily penetrate light clothing and/or

the skin.

▶ If the use of a guard is recommended for wire brushing, do not allow any interference of the wire

wheel or brush with the guard. Wire wheel or brush may expand in diameter due to work load and

centrifugal forces.

2.1.3 Additional safety instructions

Personal safety

▶ Only use the product if it is in perfect working order. ▶ Never tamper with or modify the tool in any way. ▶ Avoid touching rotating parts – risk of injury! ▶ Wear protective gloves also when changing the accessory tool. Touching the accessory tool presents a

risk of injury (cuts or burns).

▶ 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 class in compliance with the locally applicable dust protection regulations. Dust from materials such as lead-based paint, certain types of wood and concrete/masonry/stone containing quartz, minerals or metal may be harmful to health.

▶ Make sure that the workplace is well ventilated and, where necessary, wear a respirator appropriate for

the type of dust generated. Contact with or inhalation of the dust may cause allergic reactions and/or respiratory or other diseases among operators or bystanders. 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). Material containing asbestos may be handled only by specialists.

▶ Take breaks between working and do physical exercises to improve the blood circulation in your fingers.

Exposure to vibration during long periods of work can lead to disorders of the blood vessels and nervous system in the fingers, hands and wrists.

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.

2.1.4 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 take apart, squash or incinerate batteries and do not subject them to temperatures over 80 °C. ▶ Do not attempt to charge or continue to use damaged batteries. ▶ If the battery is too hot to touch, it may be defective. In this case, place the power tool in a non-flammable

location, well away from flammable materials, where it can be kept under observation and left to cool down. Contact Hilti Service after the battery has cooled down.

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