YT-82763 - Grinder Yato - Free user manual and instructions

USER MANUAL YT-82763 Yato

Two-panel image showing a gloved hand holding a medical device with a numbered label '7' (no text or symbols on the device itself)

Three-panel black-and-white photo showing hands using a tool to adjust or install a component, no visible text or symbols.

PL

Read the operating instruction

Wear protective goggles

This symbol indicates that waste electrical and electronic equipment (including batteries and storage cells) cannot be disposed of with other types of waste. Waste equipment should be collected and handed over separately to a collection point for recycling and recovery, in order to reduce the amount of waste and the use of natural resources. Uncontrolled release of hazardous components contained in electrical and electronic equipment may pose a risk to human health and have adverse effects for the environment. The household plays an important role in contributing to reuse and recovery, including recycling of waste equipment. For more information about the appropriate recycling methods, contact your local authority or retailer.

WYPOSAŻENIE PRODUKTU

The mini cordless grinder is designed for a variety of household jobs such as drilling, grinding, milling, engraving, polishing, cleaning and much more. Thanks to the high RPM rate, it is now possible to carry out many tasks which were previously impossible. Small size and battery power supply ensure convenient operation. The tool is designed for household use only and must not be used professionally, i.e. in workplaces or for paid work. The correct, reliable, and safe operation of the sander depends on its proper use, therefore:

Read the entire manual before the first use of the tool and keep it for future reference. CAUTION! The dust produced when sanding certain surfaces can be harmful to health or toxic.

The above remark applies, among others, to the sanding of surfaces covered with paints containing lead, certain types of wood, certain metals (e.g. lead) and materials, therefore, effective dust extraction, dust masks and other skin and respiratory protection measures should be used during work. The supplier shall not be liable for any damage resulting from failure to comply with the safety instructions and recommendations specified in this instructions manual.

PRODUCT ACCESSORIES

The product is supplied complete and does not require assembly. The product comes with a charging cable and accessories (abrasive bits).

SPECIFICATIONS

Parameter Unit Value
Catalogue No. YT-82763
Rated voltage [V DC] 3.6
Rated current [A] 1
Supply battery type Li-ION
Rated battery voltage [V DC] 3.6
Charging time (5 V DC 1 A) [h] 2
Battery capacity [mAh] 1500
Battery energy	[Wh]	5.4
Tool chuck diameter	[mm]	3.2
Max. diameter of accessories	[mm]	35
Rated speed	[min-1]	5,000 / 8,000 / 11,000 / 14,000 / 18,000
Noise level
- sound pressure	[dB(A)]	79 ± 3.0
- power	[dB(A)]	90 ± 3.0
Vibration level	[m/s2]	1.177 ± 1.5
Protection rating		IPX0
Weight	[kg]	0.16

The declared noise emission value has been measured using the standard test method and can be used to compare one tool to another. The declared noise emission value can be used in the preliminary exposure assessment.

The declared total vibration value has been measured using the standard test method and can be used to compare one tool to another. The declared total vibration value can be used in the initial exposure assessment.

EN

Note! The vibration emission during tool operation may differ from the declared value, depending on the manner the tool is used.

Note! Safety measures to protect the operator, which are based on an assessment of exposure under actual conditions of use (including all parts of the work cycle, such as the time when the tool is switched off or idle and the activation time), must be specified.

GENERAL WARNINGS FOR THE SAFETY OF POWER TOOLS

Warning! Read all safety warnings, illustrations and specifications provided with this power tool. Failure to do so may result in electric shock, fire or serious injury.

Keep all warnings and instructions for future reference.

The term “power tool” used in warnings applies to all tools driven by power both wired and wireless.

Workplace safety

Keep the workplace well-lit and clean. Disorder and poor lighting can be causes of accidents.

Do not work with power tools in an environment with an increased risk of explosion, containing flammable liquids, gases or vapors. Power tools generate sparks that can ignite dust or fumes.

Children and third persons should not be allowed to enter the workplace. Loss of concentration can result in loss of control.

Electrical safety

The plug of the electric cable must match the power socket. You must not modify the plug in any way.

Do not use any plug adapters with earthed power tools. An unmodified plug that fits the outlet reduces the risk of electric shock.

Avoid contact with earthed surfaces such as pipes, radiators and coolers. Grounding the body increases the risk of electric shock.

Do not expose power tools to contact with atmospheric precipitation or moisture. Water and moisture that gets inside the power tool increases the risk of electric shock.

Do not overload the power cable. Do not use the power cord to carry, pull or unplug the power plug from the power outlet. Avoid contact of the power cable with heat, oils, sharp edges and moving parts.

Damage or entanglement of the power cord increases the risk of electric shock.

In the case of working outside closed rooms, use extension cords intended for work outside closed rooms. The use of an extension cord adapted for outdoor use reduces the risk of electric shock.

When using a power tool in a humid environment is unavoidable as a protection against supply voltage use a residual current device (RCD). The use of RCD reduces the risk of electric shock.

Personal safety

Stay alert, pay attention to what you do and keep common sense while working with the power tool. Do not use a power tool when you are tired or under the influence of alcohol or medication. Even a moment of inattention while working can lead to serious personal injury.

Use personal protective equipment. Always wear eye protection. The use of personal protective equipment such as dust masks, anti-slip safety shoes, helmets and hearing protection reduce the risk of serious personal injury.

Prevent accidental operation. Make sure that the electric switch is in the “off” position before connecting to the power supply and / or battery, lifting or moving the power tool. Moving the power tool with the finger on the switch or powering the power tool, when the switch is in the “on” position can lead to serious injuries.

Before turning on the power tool remove any keys and other tools that were used to adjust it. The key

EN

left on the rotating parts of the power tool can lead to serious injuries.

Do not reach and do not lean too far. Keep the right attitude and balance all the time. This will allow easier control over the power tool in case of unexpected work situations.

Dress accordingly. Do not wear loose clothing or jewelry. Keep your hair and clothing away from moving parts of the power tool. Loose clothing, jewelry or long hair can be caught by moving parts.

If the devices are fitted for the connection of dust extraction or dust collection, make sure that they are connected and used properly. The use of dust extraction reduces the risk of dust hazards.

Do not let the experience acquired from frequent use of the tool resulted in carelessness and ignoring safety rules. Carefree action can cause serious injuries in a fraction of a second.

Use and care of the power tool

Do not overload the power tool. Use the power tool appropriate for the selected application. The right power tool will provide a better and safer job if used according to the designed load.

Do not use the power tool, if the electric switch does not allow switching on and off. Power tool, which cannot be controlled by means of a power switch is dangerous and must be returned for repair.

Disconnect the plug from the power socket and / or remove the battery if it is detachable from the power tool before adjusting, changing accessories or storing the tool. Such preventive measures will allow you to avoid accidentally turning on the power tool.

Keep the tool out of the reach of children, do not let people who do not know how to operate the power tool or these instructions use a power tool. Power tools are dangerous in the hands of untrained users.

Maintain power tools and accessories. Check the tool for mismatches or jams of moving parts, damage to parts and any other conditions that may affect the operation of the power tool. Damage must be repaired before using the power tool. Many accidents are caused by incorrectly maintained tools.

Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp edges are less prone to jamming and are easier to control when working.

Use power tools, accessories and inserted tools etc. in accordance with these instructions, taking into account the type and conditions of work. The use of tools for work other than designed is likely to result in a dangerous situation.

Handles and gripping surfaces must be dry, clean and free from oil and grease. Slippery handles and gripping surfaces do not allow for safe operation and control of the tool in dangerous situations.

Repairs

Repair the power tool only in authorized facilities using only original spare parts. This ensures proper operation safety of the power tooi.

ADDITIONAL SAFETY INSTRUCTIONS

The tool is designed only for sanding, polishing, wire brush work, sculpting and cutting. Read and view all warnings, instructions, figures, and specifications supplied with the power tool. Failure to follow all of the instructions provided below may result in electrocution, fire and/or serious injury.

Do not use accessories that have not been designed or recommended for the work with the tool by the manufacturer. The fact that the accessories can be installed on the tool does not ensure safe operation.

The accessory RPM rate must be greater than or equal to the maximum RPM rate of the tool. Accessories with a lower RPM rate than that of the tool can, in fact, fall apart during use.

The outer diameter and thickness of accessories must be within the size range specified for the tool.

Improper size accessories cannot be properly controlled.

The size of the fixing hole of wheels, discs, flanges, and other accessories must match the size of the tool spindle. Accessories with a fixing hole size not suitable for the tool spindle size will start to vibrate during operation, which may result in the loss of control of the tool.

Shanks of discs, polishing discs and cutting discs must be fully inserted into the tool clamp or chuck.

EN

If the shank is not held sufficiently firmly and/or protrudes too far, the bit can come loose and be ejected at high speed.

Do not use damaged accessories. Before each use, examine the condition of accessories such as abrasive discs for cracks and abrasions, polishing discs for cracks, abrasions and excessive wear, and wire brushes for loose or broken wires. If any accessories are dropped, check them for damages or install new and undamaged accessories. After checking and installing the accessories, make sure you and all bystanders stand outside the rotation plane of the accessories, then turn on the tool for one minute at a maximum rotational speed. Damaged accessories will disintegrate during the test.

Wear personal protective equipment. Use face shields, goggles, or safety goggles, depending on the application. If required, use dust masks, hearing protection, safety gloves, and aprons to protect against small pieces of accessories or materials generated during work. The eye protection must allow for stopping any flying debris generated during work. The dust mask must be capable of filtering dust generated during work. Extended exposure to noise can result in hearing loss.

Ensure all bystanders keep a safe distance from the work area. Persons entering the work area must wear personal protective equipment. Splinters produced during the work or splinters of damaged accessories

may be ejected outside the immediate vicinity of the work area.

Hold the power tool by the insulated handles to avoid the risk when the accessory attached comes into contact with a live concealed wire when working. When the bit is in contact with a live wire it may cause the metal parts of the tool to become live, which may lead to electrocution of the tool operator.

Hold the tool firmly in your hand(s) when turning it on. The RPM rate of reaction of motor accelerating to full speed can cause the tool to rotate.

Whenever possible, use clamps to hold the workpiece. Never hold a small workpiece in one hand and the tool in the other while working. Using clamps to hold small workpieces will allow controlling the tool with both hands. Round materials such as shanks or pipes tend to rotate during cutting and can cause jamming or sudden kickback towards the operator.

Keep the power cord away from the rotating tool parts. If you lose control of the tool, the power cord can be cut or caught, and your hand or arm can be drawn into the rotating parts of the machine.

Never put away the tool until the rotating parts have come to a complete standstill. The rotating parts can “catch” the surface and pull the tool out of the operator’s control.

Make sure that the spindle nut, tool chuck or any adjustment tool is securely tightened after replacing the bit or making any adjustments. A loose adjustment tool can move unexpectedly, causing loss of control and sudden ejection of loose, rotating components.

Do not turn on the tool while carrying it around. Accidental contact with rotating parts may cause catching and pulling in the clothing as well as the contact of the tool with the operator's body.

Clean the tool's ventilation openings regularly. The motor fan draws dust inside the tool during operation. Excessive accumulation of metal particles contained in the dust increases the risk of electrocution.

Do not use the tool near flammable materials. Sparks generated during operation may cause a fire.

Do not use accessories that require liquid cooling. Water or coolant may lead to electrocution.

Warnings related to tool kickback towards the operator

The kickback of the tool towards the operator is a sudden reaction to a blocked or jammed rotating disc, polishing belt, brush or other accessory. Blocking or jamming causes a rotating accessory to stop suddenly, which results in the power tool rotating in the opposite direction to the accessory rotation.

For example, if the abrasive disc is blocked or jammed by the workpiece, the edge of the disc that enters the jamming point may penetrate into the surface of the material causing the disc to come out or be ejected. The disc can also be ejected towards or away from the operator, depending on the direction of the grinding wheel

EN

movement at the jamming point. Abrasive discs may also break in these conditions.

The tool kickback towards the operator is a result of misuse or failure to follow the guidelines in the instructions manual. This phenomenon can be avoided by following the instructions below.

Use a firm grip on the tool and the correct body posture and hands position to withstand the forces generated by the kickback. The operator will be able to control the tool rotation or the kickback if appropriate precautions are taken.

Pay special attention when working near corners, sharp edges, etc. Prevent the abrasive disc from runout and being jammed. When machining corners or edges, there is an increased risk of the abrasive disc jamming, leading to a loss of control or tool kickback.

Do not use circular saw blades with teeth. The blades cause frequent kickbacks and the loss of control of the tool.

Always insert the bit into the material in the same direction in which the cutting edge exits the material (the same direction in which the chips are ejected). Inserting the tool in the wrong direction will cause the cutting edge of the bit to come out of the material and pull the tool in the guide direction.

Always mount the workpiece securely when rotary files, cutting discs, high-speed cutters or carbide cutters will be in use. These accessories can be caught if they are tilted slightly in the cut and kick back. If the cutting disc is caught, it will usually break. If a rotary file or carbide cutter is caught it can come out of the cut and result in loss of control of the tool.

Safety warnings related to sanding and cutting with abrasive discs

Use only tool-specific discs and guards which are designed for the type of work in question. For example, do not grind with the edge of cutting grinding wheels. Abrasive discs for cutting are designed for circumferential load, lateral forces applied to such a disc may cause it to disintegrate.

For threaded abrasive cones and journals, use only undamaged, correct size and length flat-flanged disc shanks. Using the correct shank will reduce the risk of breakage.

Do not jam the cutting discs or apply too much pressure to them. Do not attempt to increase the cutting depth. Overloading the disc increases the load, the susceptibility to twisting and peeling during cutting, and the likelihood of disc kickback or destruction.

Do not align your hands with or behind the spinning disc. If the disc is moving away from the hands during operation, the rotating disc and tool will be directed towards the operator in the event of a kickback.

If the disc is caught, blocked or if there is an interruption in cutting for any reason, switch off the tool and hold it stationary until the disc comes to a complete standstill. Never attempt to remove the cutting disc from the cut if the disc is in motion, as it may lead to a kickback. Investigate the causes and take correct steps to eliminate the cause of the disc blockage.

Do not resume cutting in the workpiece. Allow the disc to reach full speed and then carefully resume cutting. The disc can become jammed, come out of the material or kick back if the power tool is turned on when in the workpiece.

Panels and other oversized workpieces should be supported to avoid clamping or kickback of the disc. Large pieces of material tend to bend under their own weight. The supports must be placed under the material close to the cutting line and close to the edge of the material on both sides of the cutting line.

Take special care when cutting recesses in walls or other surfaces. The disc can cut through gas, water or electrical lines, as well as objects that will cause kickback.

Warnings related to the work with the wire brush

Be careful, as wire fragments are also ejected from the brush during normal operation. Do not overload the wires by applying too much pressure to the brush. The wires can easily pierce thin clothing or skin.

Before use, allow the brushes to reach operating speed and run for at least one minute. At that time, it is forbidden to stand in front of or in line with the brush. Loose wire fragments or wires will fly off the

EN

brush during this activity.

Direct the output materials away from under the spinning brush. During operation, small debris and small wire fragments can be ejected at high speed and penetrate the skin.

TOOL OPERATION

The tool must be unpacked and all parts of the packaging removed.

Charging the battery

Charge the tool's battery before first use. To do this, connect the charging cable plug to the charging socket (II). The other plug should be connected to the USB socket of the charger or other device with a standard USB socket with a current capacity of at least 1 A. During charging, the display will sequentially illuminate the battery charge levels from the lowest, marked as "O1", to the largest, marked as "O5". The higher the illuminated level, the more charged the battery is. The level currently flashing on the display indicates the charging status. When charging is complete, the display will illuminate all charging levels. After charging, immediately disconnect the cable from the USB socket and then from the tool. Keeping the charged product connected to the charger for too long may result in irreversible damage to the product.

It is not possible to use the tool during charging. After charging, the product is ready for use.

Installation of tooling in the tool chuck (III)

Press the spindle lock button.

Rotate the spindle until it locks.

Unscrew the drill chuck nut.

Fit the required accessory into the tool chuck.

Tighten the tool chuck nut so that the accessory sits firmly and securely in the chuck.

To remove the accessory, follow the procedure in the reverse order.

Starting the tool / setting the speed

CAUTION! The spindle lock button must not be pressed during operation. This can damage the tool.

Press the power switch to start the tool. The tool will start operating at the lowest speed, indicated as "O1" on the display.

Pressing the power switch while the tool is running will change the speed in the following sequence: second speed level indicated on the display as "O2", third speed level indicated on the display as "O3", fourth speed level indicated on the display as "O4", fifth speed level indicated on the display as "O5", turn the tool off. The tool can also be switched off during operation regardless of the speed setting by pressing and holding the power switch for approx. 2 seconds. The tool does not have a memory of the set speed and will operate at the lowest speed after restarting.

USING THE GRINDER

Basic precautions must be taken when using grinding stones. Before each use, the grinding stones should be visually inspected for damage and deformation. It is forbidden to use grinding stones in which any damage has been found. Grinding stones should not be thrown, struck or violently applied to the workpiece. This can cause the grinding stone to disintegrate, resulting in serious injury.

The accessory shank must not protrude more than 5 to 15 mm from the chuck. Do not use accessories with a shank longer than 45 mm.

Use accessories according to their intended use. For example, do not grind with discs designed for cutting, do not use drill bits for side milling.

Before fitting the accessories, set the correct operating speed for the type of equipment. After installation,

EN

allow the tool to reach its full working speed. Apply only full-speed rotating accessories to the workpiece. Do not apply excessive force, but only as much force as is needed for proper operation. Apply sanding discs at a slight angle to the workpiece. Place the cutting discs perpendicular to the intended cut. Brushes should be applied in such a way that the ends of the wires, not their lateral surfaces, abrade the workpiece.

When finished working, move the accessory safely away from the workpiece, then switch off the power tool and wait for the inserted tool to come to a complete stop.

The workpiece must be clamped or supported in such a way as to prevent uncontrolled movement of the material and its parts while being worked on. This can be done using supports, brackets, clamps, vices, etc. Clamping should be done in such a way as to ensure free access to the work surface.

The tool is designed to be held in one hand, but a two-handed grip can be used if excessive vibration occurs during operation.

Hold the tool with the whole hand and using sufficient force to work safely. An overly firm grip can cause fatigue. Avoid holding the tool with your fingers alone.

Accessories screwed onto a threaded shank should be selected so that the fixing thread is not longer than the hole into which it will be screwed. This will prevent the accessories from breaking. Use shanks with flat flanges and without undercuts or recesses. This will increase the contact area between the shank and the accessory and prevent its breakage.

Accessories with a diameter larger than that specified in this manual must not be used.

Begin operation. In continuous operation, the heat build-up of the grinder and accessory should be monitored and breaks should be taken during operation as the temperature rises. To prevent the motor from overheating, it is advisable to take frequent breaks from the grinder and keep the ventilation slots clear.

When working with the grinder, do not exert too much pressure on the workpiece and do not make sudden movements so as not to damage the fitted accessory or the grinder itself.

When drilling or milling in steel or aluminium, tools can be cooled with emulsifying oil or coolant recommended for the specific material, while the use of coolant is not recommended when working in brass. In the final phase of drilling through holes, the pressure on the drill bit should be reduced to avoid breaking or jamming. If the drill is jammed, switch off the tool immediately. Exerting high pressure on the tools, or choosing incorrect speed for the type of work involved, will result in overloading of the tool, which can be recognised by significant heating of the outer surfaces of the tool body.

Do not overload the tool, the temperature of the external surface must never exceed 60°C.

When work is complete, turn the tool off with the power switch and begin maintenance and visual inspection.

MAINTENANCE AND INSPECTIONS

After finishing work, the housing, ventilation openings, switches, auxiliary handle and covers should be cleaned e.g. with an air jet (with a pressure not exceeding 0.3 MPa), paintbrush or dry cloth without the use of chemicals and cleaning agents. Clean the tools and handles with a clean and dry cloth. During the warranty period, the user is not allowed to disassemble the power tool or replace any components or parts, as this will void the warranty rights. Any defects noticed during maintenance or operation signal the need for repair to be done at the manufacturer's service centre.

Safety instructions for battery charging

Li-ion (lithium-ion) batteries do not have the so-called “memory effect”, which allows them to be recharged at any time. However, it is recommended to discharge the battery during normal operation and then charge it to full capacity. If, due to the nature of work, it is not possible to use the battery in such a manner every time, it should be done at least every several work cycles. Never discharge any batteries by short-circuiting the battery plates, as this will cause irreparable damage! In addition, do not check the battery charge status by short-circuiting the electrodes and checking their sparking.

EN

Storing the battery

Ensure proper storage conditions to extend the battery's life. The battery can last for approximately 500 charge-discharge cycles. Store the battery at a temperature ranging from 0^ to 30^ at a relative air humidity of 50% . Charge the battery to approx. 70% of its total capacity to store it for a longer period of time. In case of prolonged storage, the battery should be periodically charged once a year. Do not over-discharge the battery as this will shorten its life and may cause irreparable damage. During storage, the battery will gradually discharge due to leakage. The self-discharge process depends on the storage temperature – the higher the temperature, the faster the discharge process. If the batteries are stored incorrectly, the electrolyte may leak. In case of leakage, secure the leak with a neutralising agent. In the event of electrolyte contact with eyes, rinse eyes thoroughly with water, and immediately seek medical attention. It is not allowed to use the device with a damaged battery. If the battery is completely used, return it to a specialist waste disposal centre.

Transporting the batteries

Lithium-ion batteries are treated as hazardous goods according to legal regulations. The user can transport the device together with the battery and the batteries alone, by land. In that case, no additional conditions have to be met. If you entrust transport to third parties (e.g. a courier company), follow the regulations regarding the transport of hazardous goods. Before shipping, please contact a properly qualified person. It is not allowed to transport damaged batteries. National regulations for the transport of hazardous materials must also be observed.

GERÄTEBESCHREIBUNG

Transport van accu's

DODATNE SIGURNOSNE UPUTE

Alat je namijenjen samo za brušenje, poliranje, rad sa žičanom četkom, rezbarenje i rezanje. Pročitajte i upoznajte sva upozorenja, upute, ilustracije i specifikacije isporučene s električnim alatom. Nepoštivanje svih dolje navedenih uputa može dovesti do strujnog udara, požara i/ili ozbiljne ozljede.

Ne treba koristiti opremu koja nije projektirana i preporučena od strane proizvođača. Činjenica da se pribor može pričvrstiti na alat ne jamči siguran rad.

DEKLARACJA ZGODNOŚCI | DECLARATION OF CONFORMITY | DECLARAȚIE DE CONFORMITATE

1124/YT-82763/EC/2024

We declare and guarantee with full responsibility that the following products:

meet requirements of the following European Standards / Technical Specifications:

and fulfill requirements of the following European Directives:

2006/42/WE Machinery and safety elements

2014/30/UE Electromagnetic compatibility (EMC) Directive

Directiva privind compatibilitatea electromagnetică (EMC) (H.G. nr. 487/2016)

2011/65/UE Restriction of the Use of Certain Hazardous Substances

Serial number: concern all serials numbers of item(s) mentioned in this declaration

The person authorized to compile the technical file: