YT-09546 - Screwdriver Yato - Free user manual and instructions

USER MANUAL YT-09546 Yato

Close-up of a hand using a power drill to lift a screwdriver (no text or symbols visible)

Technical diagram of a mechanical or fluid system with numbered components and labeled parts

Two views of a mechanical component, showing a tool interacting with a cylindrical part (no text or symbols visible)

Close-up of a mechanical knob or dial with four screws, no visible text or symbols

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Read the operating instruction

Wear protective goggles

Wear hearing protectors

Oil application place

Öl-Anwendungsstelle

Место подачи масла

The pneumatic wrench is a tool which uses compressed air under appropriate pressure to operate. Screws can be screwed down and unscrewed, especially where high torque is required, with socket wrenches attached to the carrier. 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.

EQUIPMENT

The wrench is fitted with a coupling to connect it to the pneumatic system.

TECHNICAL DATA

Parameter Unit Value
Part no. YT-09546
Length [mm] 195
Weight [kg] 2,2
Diameter of air connector (PT) [mm / ”] 6,3 / 1/4
Diameter of air supply hose (internal) [mm / ”] 10 / 3/8
Revolutions	[min-1]	7400
Maximum torque	[Nm]	1800
Carrier size	[mm / ”]	12,7 / 1/2
Max. work pressure	[MPa] 0,63
Required air flow (at 6.3 bar)	[l/min]	255
Sound pressure LpA± K (ISO 15744)	[dB(A)] 92 ± 3,0
Sound power LwA± K ( ISO 15744)	[dB(A)]	103 ± 3,0
Vibration ah± K (ISO 28927-2)	[m/s2] 5,47 ± 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.

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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

Damage to the workpiece, accessories or even to the tool to be inserted 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.

Hazards connected with entanglement

The Hazards connected with entanglement may cause choking, scalping and/or cutting if loose clothing, jewellery, hair or gloves are not kept away from the tool or accessories. Gloves may be entangled by a rotating carrier and may cut off or break fingers. Gloves covered with rubber or metal reinforced gloves can easily get tangled in the attachments installed on the tool carrier. Do not wear loose-fitting gloves or gloves with cut or frayed fingers. Never hold the carrier, attachment or extension cord. Keep your hands away from rotating carriers.

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 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. Be prepared to withstand normal or unexpected movements and always keep both hands at the ready. Where torque absorbing equipment is required, it is recommended to use a support arm where possible. However, if this is not possible, it is recommended to use side grips for straight tools and tools with a pistol grip. The use of lateral control rods for offset screwdrivers is recommended. In any case, it is recommended to use torque absorbing equipment above: 4 Nm for straight tools, 10 Nm for pistol grip tools, 60 Nm for offset screwdrivers. 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. Fingers may be crushed in screwdrivers with open grippers. Do not use tools in confined spaces and avoid placing hands between tool and workpiece, especially when unscrewing.

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.

Risks from accessories

Disconnect the tool from the power supply before replacing the tool to be inserted or accessory. Do not touch the attachments and accessories while the tool is running as this increases the risk of injury, burns due to vibrations. Use accessories and consumables only in the sizes and types recommended by the manufacturer.

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Use only impact attachments in good condition; bad condition or non-impact attachment used in impact tools can disintegrate and become a bullet.

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.

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

Vibration exposure may result in permanent damage to the nerves and blood circulation in the hands and the arms. Keep your hands away from screwdriver sockets. 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 unnecessary increase in vibration levels. Do not use worn or badly fitted attachments, as they may cause a significant increase in vibration levels. 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 vibrations. Wherever possible, a protective assembly should be used. If possible, support the weight of the tool in a rack, tensioner or balancer. 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.

Additional safety instructions for pneumatic tools

The pressurised air can cause serious injuries:

• always disconnect the air supply, release the air pressure from the hose, and disconnect the tool from the air supply when not in use, before changing accessories, or carrying out repairs;
• never point the air stream at yourself or anyone else.

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Hitting with the hose can cause serious injuries. Always check for damaged or loose hoses and connectors. Direct cold air away from hands. Do not use the quick coupling at the inlet of an impact tool or air-hydraulic tool. Use threaded couplings made of hardened steel (or material of similar strength). 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. Air pressure is critical to safety and affects performance in torque-controlled systems and continuous speed tools. In this case, the length and diameter of the hoses must be observed. Never carry the tool holding it by the hose.

OPERATING CONDITIONS

Ensure that the compressed air source is capable of generating the correct operating pressure and providing 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.

When using additional chucks or support racks, make sure that the tool is correctly and securely attached.

Stand in a correct position to prevent normal or unexpected movement of the tool due to torque.

The socket wrenches and other tools used must be suitable for use with pneumatic tools. The tools to be inserted must be efficient, clean and undamaged and their size must be adapted to the size of the carrier. It is forbidden to modify the wrench or carrier sockets.

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

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).

Attach a suitable socked to the tool carrier (IV). Only use accessories which are suitable for use with impact tools when working with pneumatic tools.

Connect the tool to the pneumatic system using the hose with the internal diameter listed in the technical data table (III). Make sure the hose has a durability of at least 1.38 MPa.

Set the correct direction of rotation (V). The direction of rotation of the carrier is indicated by an arrow. The letter designation indicates the direction of travel of the right-hand threaded bolt. F – tightening, R – loosening. If the tool has an adjustable air outlet, it should be positioned so that it is directed as far as possible from the hands and body of the operator and other occupants of the work area.

Adjust the pressure (torque). If pressure adjustment is not possible on the tool, it should be done on a regulator in the tool's compressed air supply.

Start the tool for a few seconds, making sure that there are no strange sounds or vibrations.

Working with impact socket wrenches

Install the bolt or nut by hand onto the thread (at least two turns) before you start to screw in the bolt or nut with a wrench. Make sure that the size of the socket wrench has been chosen correctly in relation to the

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component to be unscrewed or screwed down. Improper sizing can result in damage to both the wrench and the nut or bolt.

Unscrewing and screwing down

Adjust the pressure in the pneumatic system so that it does not exceed the maximum value for the tool. Set the correct direction of rotation of the tool and the correct torque. Mount a suitable socket wrench on the tool carrier. Connect the wrench to the pneumatic system. Insert the wrench with the socket on the element to be unscrewed or screwed on. Gradually pull the tool trigger. After the work is finished, dismantle the pneumatic system and carry out the tool maintenance.

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.

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Defect Possible solution
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 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.

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, 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.

The spare parts list is available on the manufacturer's website in the product data sheet.

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GERÄTEBESCHREIBUNG

CONDITIONS D'EXPLOITATION

DEKLARACJA ZGODNOŚCI DECLARATION OF CONFORMITY DECLARAȚIE DE CONFORMITATE

0225/YT-09546/EC/2025

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/EC Machinery and safety elements

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

The person authorized to compile the technical file: