YT-09912 - Hammer Yato - Free user manual and instructions

USER MANUAL YT-09912 Yato

Black industrial iron mill pen with visible steel wire and handle (no text or symbols)

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Labeled diagram of a mechanical device with numbered parts for identification

Close-up of a hand using a wrench to tighten a mechanical component (no text or symbols visible)

Technical diagram of a mechanical system with numbered components, likely a pump or valve assembly.

Close-up of hands holding a mechanical component, showing internal disassembly (no text or symbols visible)

Three sequential black-and-white images showing mechanical components with no visible text or symbols

1. air inlet
2. air inlet connector
3. trigger
4. piston stroke adjustment
5. tool body
6. needle head
7. locking pin
8. tool
9. hose socket
10. hose
11. hose connector
12. lubricator
13. reducer
14. filter
15. compressor

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Read the operating instruction

Wear protective goggles

Wear hearing protectors

Air connection diameter

Oil application place

Öl-Anwendungsstelle

Место подачи масла

The pneumatic scaler is a tool which uses compressed air to operate. With the help of many needles it is possible to carry out many sheet metal work, e.g. removing rust, scale, cleaning welds. The tool can also be used to clean bricks and stones. The tool is suitable for indoor use and should not be exposed to moisture or precipitation. Proper, reliable and safe operation of the tool depends on appropriate use, that is why you should

Read the entire instructions manual before the first use of the tool and keep it for future reference.

The supplier shall not be held liable for any damage or injury resulting from improper use of the tool, failure to observe the safety regulations and recommendations of this manual. Use of the tool for purposes other than those for which it was intended shall cause the loss of the user's rights to the warranty, as well as under inconsistencies with the agreement.

TECHNICAL DATA

Parameter Unit Value
Part No. YT-09912
Weight [kg] 2.81
Diameter of air connector (PT) [” / mm] 6.3 / 1/4
Diameter of air supply hose (internal) [” / mm] 10 / 3/8
Impact frequency [min-1] 4000
Number of needles 19
Needle diameter	[mm]	4
Max. work pressure	[MPa] 0.63
Required air flow (at 0.63 MPa)	[l/min]	99
Sound pressure (EN ISO 15744)	[dB(A)]	97 ± 3
Sound power (EN ISO 15744)	[dB(A)]	108 ± 3
Vibrations (EN ISO 28927-10)	[m/s2]	18.9 ± 1.5

GENERAL SAFETY CONDITIONS

WARNING! When operating a pneumatic tool, it is recommended that you always observe basic safety principles, including those listed below, to reduce the risk of fire, electrocution and avoid injury.

Please read and keep the complete instructions manual before using the tool.

CAUTION! Read all the following instructions. Failure to do so may result in electric shock, fire, or personal injury. The term “pneumatic tool” used in these instructions refers to all tools driven by a compressed air stream at the correct pressure.

OBSERVE THE FOLLOWING INSTRUCTIONS

General safety principles

Due to multiple hazards, read and understand the safety instructions before starting the installation, works, repair, maintenance, and changing the accessories or when working in the vicinity of a pneumatic tool. Failure to do so may result in serious injuries. Pneumatic tools may only be installed, adjusted, and assembled by qualified and trained personnel. Do not modify the pneumatic tool. Modifications can reduce efficiency and safety, and increase the risk for the tool operator. Do not throw away the safety instructions. They should be handed over to the tool operator. Do not use the pneumatic tool if it is damaged. The tool must be periodically inspected for the visibility of information required by the ISO 11148 standard. The employer/user should contact the manufacturer to replace the rating plate whenever necessary.

Hazards connected with ejected parts

Disconnect the tool from the power supply before replacing the inserted tool or accessory. Damage to the workpiece, accessories or even to the inserted tool can result in parts being ejected at high speeds. Always use impact-resistant eye protection. The degree of protection must be selected according to the works carried out. Make sure that the workpiece is securely clamped. Use a safety helmet when working over the head. Risk to bystanders should also be taken into account. Make sure that the workpiece is securely clamped. Do not operate the tool without making sure that an inserted tool stop is installed. To avoid injury, replace the stop when it is worn, cracked, or deformed. Apply the tool securely to the workpiece before starting work.

Hazards connected with work

Using the tool can expose the operator's hands to hazards such as crushing, impact, cutting, abrasion and heat. Wear suitable

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gloves to protect your hands. The operator and the maintenance personnel should be physically able to cope with the quantity, weight, and power of the tool. Hold the tool correctly. Keep your feet in balance and in a safe position. The pressure on the start and stop device should be released in the event of a power failure. Use only the lubricants recommended by the manufacturer. Avoid direct contact with the tool during and after work, as it can be hot. Protective goggles must be worn, and we recommend wearing suitable gloves and protective clothing.

Hazards related to repetitive movements

When using a pneumatic tool for work entailing repetitive movements, the operator is exposed to the discomfort of hands, arms, shoulders, neck, or other parts of the body. When using a pneumatic tool, the operator should take a comfortable posture to ensure the feet are correctly positioned and avoid strange or unbalanced postures. The operator should change the posture over a long time to avoid discomfort and fatigue. If the operator experiences symptoms such as persistent or repeated discomfort, pain, pulsating pain, tingling, numbness, burning, or stiffness, they should not ignore them. The operator should inform the employer and consult a physician.

Hazards connected with accessories

Disconnect the tool from the power supply before replacing the tool to be inserted or accessory. Use accessories and consumables only in the sizes and types recommended by the manufacturer. In the case of scalers, never use any chisels as hand tools, where appropriate. They have been specially designed and heat-treated for use with non-rotating impact tools only. In the case of scalers and crushers, never use dull chisels where appropriate, as they are subject to heavy loads and may break due to wear. Using a blunt tool can increase vibration and therefore sharpened tools should always be used. In the case of scalers, where appropriate, never cool hot tools in water, this may result in brittleness and premature wear. In the case of scalers, damage or breakage of the tool, as appropriate, may result from misuse of the tool as a lever, e.g. when leveraging. It is better to work by removing smaller pieces to avoid jams. Avoid direct contact with the tool to be inserted during and after work, it can be hot or sharp.

Hazards connected with the workplace

Slips, stumbles, and falls are the main causes of injury. Beware of slippery surfaces caused by using the tool, as well as tripping hazards caused by the air system. Proceed with caution in an unfamiliar environment. Hidden hazards may exist, such as electricity or other utility lines. The pneumatic tool is not intended for use in potentially explosive zones and is not insulated from contact with electricity. Make sure that there are no electric cables, gas pipes, etc. which could pose a risk in the case of damage with the tool.

Fumes and dust hazards

Dust and fumes from pneumatic tools can cause ill health (e.g. cancer, congenital malformations, asthma and/or dermatitis), it is necessary to: assess the risks and implement appropriate control measures with regard to these risks. The risk assessment shall include the impact of the dust generated by the tool and the possibility of existing dust disruption. The air outlet shall be so directed as to minimise the disruption of dust in a dusty environment. Where dust or fumes are generated, priority should be given to controlling them at the source of the emission. All integrated functions and accessories for collecting, extracting or reducing dust or fumes should be properly operated and maintained according to the manufacturer's recommendations. Use respiratory protection in accordance with the employer's instructions and in accordance with hygiene and safety requirements. The operation and maintenance of the pneumatic tool must be carried out in accordance with the instructions in the instructions manual in order to minimise the emission of fumes and dust. Select, maintain and replace tools to be inserted in accordance with the instructions in order to prevent the increase of fumes and dust.

Noise hazard

Exposure to high levels of noise can cause permanent and irreversible hearing loss and other problems such as tinnitus (ringing, buzzing, whistling or buzzing in ears). A risk assessment and the implementation of appropriate control measures for these hazards are necessary. Appropriate controls to reduce the risk may include measures such as silencing materials to prevent the workpiece from "ringing". Use hearing protection in accordance with the employer's instructions and in accordance with hygiene and safety requirements. The operation and maintenance of the pneumatic tool must be carried out in accordance with the instructions in the instructions manual in order to avoid an unnecessary increase in noise levels. If the pneumatic tool has a silencer, always make sure that it is installed correctly when using the tool. Select, maintain and replace worn tools to be inserted in accordance with the instructions in the manual. This will help avoid an unnecessary increase in noise.

Vibration hazard

Although the tools were designed to minimise the risks associated with vibration emission, it was not possible to completely eliminate the vibrations which remain as residual risks. Improper handling of the tool can cause risks associated with vibration exposure. The value of the vibrations specified in the manual may not adequately represent the vibration level of the intended use. Vibration exposure may result in permanent damage to the nerves and blood circulation in the hands and the arms. Wear warm clothes when working at low temperatures and keep the hands warm and dry. If numbness, tingling, pain or bleaching occurs in your fingers or hands, stop using the pneumatic tool, then inform your employer and consult your doctor. The operation and maintenance of the pneumatic tool must be carried out in accordance with the instructions in the manual in order to avoid an un-

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necessary increase in vibration levels. Do not hold the tool with your free hand, this increases the exposure to vibrations. Maintain a light, yet firm grip on the tool and mind the reaction forces from operating the tool. The risk of vibration is higher the higher is the force of your grip on the tool. Hold the additional handles in a central position and avoid pressure on the handle until the tool stops. In the case of crushers, remove smaller pieces of concrete to prevent the tool from jamming. In the case of crushers, move the tool every few seconds. The tool must be stopped during moving because vibrations reach a high level if the inserted tool is not supported by the workpiece.

Additional safety instructions for pneumatic tools

The pressurised air can cause serious injuries: - always cut off the air supply, empty the hose of air pressure and disconnect the tool from the air supply when: the tool is not in use, before changing accessories or when carrying out repairs; - never direct air at yourself or anyone else. Hitting with the hose can cause serious injuries. Always check for damaged or loose hoses and connectors. Direct cold air away from hands. Whenever universal screwed connections (dog connections) are used, safety pins and safety connectors must be used to prevent damage to the connections between the hoses and between the hose and the tool. Do not exceed the maximum air pressure specified for the tool. Never carry the tool holding it by the hose.

OPERATING CONDITIONS

Make sure that the compressed air source generates the correct working pressure and provides the required air flow. If the supply air pressure is too high, a pressure regulator with a safety valve must be used. The pneumatic tool must be fed through the filter and lubricator system. This will ensure that the air is both clean and moistened with oil. Check the condition of the filter and lubricator before each use and clean the filter if necessary or make up for the oil shortage in the lubricator. This will ensure the correct operation of the tool and extend its service life. In the case of heavy loads, a recoil force may be generated towards the tool operator. It is necessary to adopt such a posture during work to be able to counteract these forces effectively. If you move the tool unexpectedly or break the inserted tool, you may be injured. When using additional holders or support racks, make sure that the tool is correctly and securely attached. Keep body parts and clothing away from the working tool. There is a risk of being pulled in or caught. Always make sure that all keys and tools used for adjusting and attaching other tools to the pneumatic scaler are removed before starting work. During operation, dust can be generated which, depending on the workpiece, can be harmful to the operator. During cutting or demolition work, workpiece elements can be ejected. Do not hold the inserted tool with an unprotected hand. This can cause injuries due to vibration.

USING THE TOOL

Before each use of the tool, make sure that no parts of the pneumatic system are damaged. If you notice damage, immediately replace the components with new, undamaged ones. Dry the condensed moisture inside the tool, compressor and hose before each use of the pneumatic system.

Connecting the tool to the pneumatic system (III)

The figure shows the recommended manner of connecting the tool to the pneumatic system. This will ensure the most efficient use of the tool and also prolong the tool's service life.

Apply a few drops of SAE 10 viscous oil into the air inlet. Screw a suitable nozzle to the air inlet thread firmly and securely to connect the air supply hose (II). Then connect the needle head to the tool body by inserting (IV) the locking pin into the piston stroke adjustment hole until the head can be turned so that one of the three piston stroke levels can be selected. The locking pin should lock into one of the three piston stroke levels (V). The adjustable piston stroke allows the scaler force to be adjusted to achieve the desired effect. The first level (closest to the tool body) is the setting with the highest impact force, while positioning each subsequent level towards the needle head makes the impact force weaker.

Only use accessories which are suitable for use with impact tools when working with pneumatic tools. Wherever possible, adjust the pressure (torque). Connect the tool to the pneumatic system using the hose with the internal diameter listed in the technical data table. Make sure the hose has a durability of at least 1.38 MPa. Start the tool for a few seconds, making sure that there are no strange sounds or vibrations.

Working with the scaler

The tool is activated by pressing and holding the trigger. The tool is stopped by releasing the trigger. The trigger is not lockable in any position.

Always hold the tool with both hands while working. When working, apply only such pressure on the tool which is required for the given task. Do not exert excessive pressure on the workpiece, this can lead to needle breaks and serious injuries. Attention should also be paid to any fragments that may become detached during work. They must not be allowed to cause hazards in the workplace.

MAINTENANCE

Never use petrol, solvent, or any other flammable liquid to clean the tool. Vapours may ignite, causing the explosion of the tool and serious injury. The solvents used to clean the tool chuck and the body may soften the seals. Thoroughly dry the tool before starting work. If you notice any malfunction of the tool, immediately disconnect the tool from the pneumatic system. All components of the pneumatic system shall be protected against dirt. Dirt entering the pneumatic system can damage the tool and other components of the pneumatic system.

Tool maintenance before each use

Disconnect the tool from the pneumatic system. Before each use, introduce a small amount of storage fluid (e.g. WD-40) through the air inlet. Connect the tool to the pneumatic system and run it for approx. 30 seconds. This will allow you to spread the preservative fluid through the inside of the tool and clean it. Disconnect the tool from the compressed air system again. Insert a small amount of SAE 10 lubricant into the tool via the air inlet opening and the openings designed for that purpose. The use of SAE 10 lubricant is recommended for the maintenance of pneumatic tools. Connect the tool and run it for a few seconds. Caution! WD-40 cannot be used as a proper lubricating oil. Wipe off any excess oil which may have escaped through the outlet openings. The oil left can damage the tool seals.

Other maintenance activities

Before each use of the tool, make sure that there are no signs of damage to the tool. Keep drivers, tool chucks and spindles clean. Have the tool inspected by a qualified workshop personnel every 6 months or after 100 operating hours. If the tool has been used without the recommended air supply, increase the inspection intervals of the tool.

Removing defects

Stop using the tool as soon as you detect any defect. Use of a defective tool may result in injury. Any repairs or replacements to the tool components must be carried out by qualified personnel at an authorised repair shop.

Defect Possible solution
The tool rotation is too slow or does not start up.	Apply a small amount of WD-40 through the air inlet opening. Activate the tool for a few seconds. The blades could stick to the rotor. Switch on the tool for approx. 30 seconds. Lubricate the tool with a small amount of lubricant.Caution! Excessive amount of lubricant can cause the tool to lose power. In this case, clean the drive.
The tool starts up and then slows down	The compressor does not provide an adequate supply of air. The tool is activated by the air accumulated in the compressor tank. As the tank empties, the compressor does not keep up with filling in the air shortages. Connect the device to a more efficient compressor.
Insuffi cient power	Make sure that the hoses have an internal diameter at least as specified in the table in item 3. Check the pressure setting to ensure that it is set to the maximum value. Make sure that the tool is properly cleaned and lubricated. If there are no results, have the tool repaired.

Spare parts

For a detailed list of spare parts for the product go to the product data sheet on the TOYA SA website.

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 the handles with a clean dry cloth.

Used tools are recyclable materials - they cannot be thrown into household waste containers as they contain substances dangerous to human health and the environment! Please actively help us in using the natural resources responsibly and protecting the environment by handing over the used tool to a used tool storage point. In order to reduce the amount of disposed waste, it is necessary to reuse or recycle it in another form.

GERÄTEBESCHREIBUNG

CONDITIONS D'EXPLOITATION

DEKLARACJA ZGODNOŚCI DECLARATION OF CONFORMITY DECLARATIE DE CONFORMITATE

1025/YT-09912/EC/2025