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Instructions for labor protection when working with hand pneumatic tools

Occupational Safety and Health / Standard instructions for labor protection

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Safe Operation

1. General requirements for labor protection

1.1. This instruction establishes the requirements for the protection of ore when working with a manual pneumatic tool.

1.2. To work with a manual pneumatic tool, workers who have undergone a medical examination, special training, certified by the qualification commission and received the appropriate certificate, have passed an introductory briefing on labor protection upon employment and primary briefing at the workplace, as well as repeated and, if necessary, unscheduled and targeted briefings on labor protection.

1.3. During the entire working shift, the work and rest regime established in the organization should be observed. Rest and smoke is allowed only in specially designated areas.

1.4. Workers should only perform the work assigned by the work manager. It is not allowed to entrust your work to other employees and allow unauthorized persons to the workplace.

1.5. On all pneumatic tools, a serial number should be affixed to the body and recorded in a special log of periodic inspections of the pneumatic tool.

1.6. All types of repair of pneumatic tools should be carried out centrally in accordance with the instructions of the tool manufacturer.

1.7. Each pneumatic tool must be provided with a passport, which indicates the date of issue of the tool, marks on the production of all types of repairs, vibration amplitude.

1.8. An employee may be exposed to dangerous and harmful production factors: noise, vibration, unfavorable indicators of the production microclimate, dust, moving machines and mechanisms that are not protected by rotating equipment.

1.9. Overalls, footwear and other personal protective equipment are issued to employees in accordance with applicable standards in accordance with the work performed.

1.10. The employee should follow the fire safety rules, know the fire warning signals, the location of fire extinguishing equipment and be able to use them. It is not allowed to use fire-fighting equipment for household purposes, blocking passages and access to fire-fighting equipment.

1.11. In the event of an accident, stop work, notify management and seek medical attention.

1.12. Employees should follow the rules of personal hygiene.

1.13. If any questions arise during the work related to its safe performance, you should contact the employee responsible for the safe performance of work.

1.14. Employees who do not comply with the requirements of this Instruction are liable in accordance with the current legislation of the Russian Federation.

2. Labor protection requirements before starting work

2.1. Before starting work, it is necessary to find out from the employee being replaced about all the malfunctions and malfunctions that occurred during work and the measures taken to eliminate them.

2.2. Put on and tidy up work clothes, special anti-vibration gloves and prepare safety goggles. Do not allow freely hanging parts of clothing, tuck them in, fasten the cuffs of the sleeves. Pick up hair under a tight-fitting headdress.

When working with an impact tool (hammer, chisel, etc.), it is necessary to wear safety goggles with safety glasses, as well as anti-vibration gloves.

When working lying down, leaning on your elbows or knees, put on elbow and knee pads.

When working at height, put on a safety climbing belt and use it during the entire work.

When working inside vessels (boilers, tanks, etc.) during their riveting, chasing and other operations with significant noise, wear earmuffs.

2.3. Inspect the workplace, remove objects that interfere with work and clear the aisles.

2.4. Make sure the work area is adequately lit. When using a portable electric lamp, check the presence of a protective grid on the lamp, the serviceability of the cord and the insulating rubber tube.

2.5. With each issuance of pneumatic tools, the following should be carried out:

• checking the completeness and reliability of fixing parts;
• external inspection: checking the serviceability of the cable (cord), its protective tube and plug.

2.6. Before working with pneumatic tools, check:

• reliability of tightening all threaded connections;
• no damage to air rubber hoses, reliability of their fastening on the fitting (the fittings have serviceable edges and threads, ensuring a strong and tight connection of the hose to the pneumatic tool and to the air line);
• the strength of the connection of hoses to a pneumatic tool and the connection of hoses to each other, carried out only with the help of fittings or nipples with serviceable threads (circular grooves) and coupling collars; it is not allowed to use wire and electric wire to fix hoses on fittings or nipples in order to avoid hose breakage;
• the correct sharpening of the plug-in tool (drills, screwdrivers, keys, countersinks, etc.), the absence of cracks, potholes, burrs and other defects on it; shanks must be even, without bevels, cracks and other damage, tightly fitted and correctly centered;
• the presence on the shank of a plug-in percussion tool (chisels, crimps, etc.) of clear edges and the possibility of its entry into the hammer box; placement of a set of plug-in tools during storage in a portable box;
• the quality of compressed air supplied to the tool, which must have a purity of at least class 5;
• the presence of lubrication of the pneumatic tool, the absence of cracks and other damage on its body;
• ease and speed of opening and closing the valve for turning on the tool, no air leakage in the closed position; absence of nicks on the cone of the drilling machine spindle;
• the reliability of the protection of the abrasive wheel on the grinding machine with a protective cover;
• the presence of a device in the pneumatic chisel-hammer, which excludes the return of the tool.

2.7. It is necessary to securely connect the pneumatic tool to the air outlet and check its operation at idle.

2.8. Grinding machines, saws and planes must have a protective fence of the working part.

2.9. The gap between the circle and the upper edge of the opening of the movable casing, as well as between the circle and the protective cap, should not exceed 6 mm.

2.10. The gap between the side wall of the protective cover and the flanges for fastening the circle of the greatest height used on this machine should be kept within 5 - 10 mm. During operation, the removable cover of the protective cover must be securely fastened.

2.11. Starting work with a grinding pneumatic tool is allowed only with a balanced abrasive wheel. The prepared tool should be turned on immediately before lowering the grinding wheel onto the workpiece.

2.12. When preparing the wrench for work, install a shock absorber, pick up a replaceable wrench head on the screwed nut or bolt and, using a pin with a retaining ring, attach it to the wrench. Then you should set the required tightening torque for the nut and bolt, for which turn the throttle until the corresponding number appears in the reverse slot, as well as the required direction of rotation of the replaceable key head.

2.13. Before installing the drill in drilling tools, the spindle taper and drill shank must be cleaned of dirt. Contamination of the spindle taper does not allow the drill to fit tightly into it, the drill will be installed off-center.

2.14. The working tool, fixtures and auxiliary materials should be arranged in a convenient order for use and checked for their serviceability.

3. Labor protection requirements during work

3.1. Before connecting the hose to the tool, condensate must be drained from the air line. Blow out the hose with compressed air with a slight short-term pressure, having previously connected it to the network. The air jet should only be directed upwards; directing the air jet at people, the floor or equipment is not allowed.

When connecting the hose to the air line, make sure that it is securely fastened to the fitting.

3.2. The hose must be handled with care; do not allow it to be bent, tangled, or crossed with cables, electric cables, acetylene or oxygen hoses. Locate the hose so that it is not possible for vehicles to run over it and workers to pass to it.

3.3. Connect the hose to the mains and to the tool, as well as disconnect it, only when the valve on the air line is completely closed.

3.4. Ensure that there are no air leaks at the hose connections.

3.5. If the air supply is interrupted or during work interruptions, even for a short time, close the valve on the air line and remove the insert tool, and on drilling machines, additionally set the starting clutch to the non-working position.

3.6. In the event of a hose break, inspection or replacement of the plug-in working tool, it is necessary to close the valve on the line. Stopping the compressed air supply by breaking the hose is not allowed.

3.7. It is not allowed to throw a pneumatic tool, expose it to shocks, protect it from contamination, leave it unattended. It is necessary to systematically lubricate it with special oil.

If the tool malfunctions, for example, if air is leaking in the valve, the trigger does not work, you should stop working and return the tool to the pantry for repair.

3.8. When carrying a pneumatic tool, hold it by the handle of the body and roll the hose into a ring. It is not allowed to carry the pneumatic tool by holding it by the hose or by the plug-in tool.

3.9. The working inclusion of air should be carried out only after the impact tool is installed in the working position (for example, so that the crimp is pressed against the rivet, the chisel is attached to the surface of the product, etc.).

The pressure of the working tool should be carried out with a smooth gradual effort.

3.10. Use an insert tool with a shank that matches the dimensions of the barrel sleeve. The use of linings (jamming) or the presence of play in the bushing is not allowed.

3.11. When working with a pneumatic hammer, hold it by the body (barrel); it is not allowed to hold the hammer by the insertion tool. It should be ensured that the hammers are equipped with a device that prevents the striker from flying out.

3.12. When chopping, riveting and other similar work, in which metal particles may fly off, it is necessary to use goggles or a mask with safety glasses and install portable fencing shields to protect workers nearby or passing by from injury.

3.13. When working with a heavy pneumatic hammer, grinder or wrench, they should be hung on a spring balancer or on a special suspension.

3.14. When working with an abrasive wheel, do not raise the protective screen. If the screen is not present, protective goggles should be worn. Make sure that the gap between the abrasive wheel and the tool does not exceed 3 mm; with a gap of more than 3 mm, it is necessary to stop work and inform the work manager about this.

3.15. Workpieces to be processed should be installed stably on work tables and other devices in a manner prescribed by the technology and excluding any displacement during operation.

Chopping, drilling, sharpening products (parts) that are in a freely suspended state, as well as holding them when performing such work with your hands is not allowed.

3.16. When drilling a workpiece with a drilling machine in a vice, make sure that the workpiece is firmly fixed.

3.17. When the drill leaves the workpiece to be drilled, the pressing force should be reduced to a minimum.

3.18. It is necessary to ensure that there is no distortion of the drill. It is not allowed to work with drills with knocked down and rolled cone shanks.

3.19. To remove chips from holes and from a rotating cutting tool, special hooks or brushes must be used.

3.20. When drilling through partitions, make sure that there are no live electrical wires on the other side of the drill in the path of the drill.

3.21. The plug-in tool should be knocked out of the drilling machine after it is installed in a horizontal position with a special wedge and to the side that is safe for the worker and others.

3.22. Work with drilling and other rotating tools in gloves is not allowed.

3.23. Keep hands away from rotating tools.

3.24. The employee must not allow persons who are not related to the work being performed to his workplace, and not transfer the pneumatic tool even for a short time to another employee without the permission of the work manager.

3.25. When starting work in confined spaces, compartments or enclosed spaces, one should check the saturation of the air with harmful gases (acetone, oil vapors, gasoline, etc.) and, if they are found, require the employer to bring the working premises into a condition suitable for normal operation.

3.26. When working with impact and chopping tools, it is necessary to use anti-noise headphones or cover your ears with ultra-thin cotton wool, special plugs.

3.27. When performing electric welding work near the workplace, it is necessary to require the employer to provide fencing of the electric welder's workplace with portable shields or screens to protect the eyes and face from ultraviolet rays, or give the employee goggles with special glasses.

3.28. When working with an electric welder or gas cutter, beware of splashes of molten metal and the flame of a gas burner or cutter.

3.29. It is not allowed to leave and lay out tools, fastening materials and other items unsecured at a height. Rivets, nuts, bolts, tools and other items should be placed in special boxes.

3.30. When working with a hand pneumatic tool, it is not allowed:

• hold the tool by the working part or by the sleeve;
• connect and disconnect hoses until the air supply to them stops;
• lay hoses through passages, driveways and roads, in places where materials are stored, twist and bend them;
• fasten hose connections with wire and eliminate air leakage by driving a wedge under the collar;
• connect the tool to the compressed air line directly through the sleeve without the use of valves;
• stop the air supply by breaking the sleeve;
• use pneumatic tools with unregulated valves;
• use sleeves with defects, as well as wind up from insulating tape and other materials;
• adjust and change the plug-in tool in the presence of compressed air in the hose, with the exception of work carried out underground with a jackhammer, perforator or mining drill;
• remove the means of vibration protection and control of the working tool, noise suppressor from the pneumatic tool;
• work from ladders, as well as simultaneously in two or more tiers along one vertical without appropriate safety devices;
• handle objects that are on weight with a cutting tool;
• fold the tool over the heads of workers;
• leave the air supply on during breaks in work or when moving from one workplace to another;
• work at a height in the open air with ice or wind force of more than six points;
• repair pneumatic tools at the workplace;
• wrap hoses in case of accidents with rubber, insulating tape and other materials;
• thaw frozen hoses with hot water, steam or open fire at the workplace (hoses should be thawed in a warm and dry room using steam, hot water or heated sand after they are disconnected from pneumatic systems);
• throw, hit, leave unattended a pneumatic tool.

4. Labor protection requirements in emergency situations

4.1. If deviations are detected in the operation of a pneumatic tool (the appearance of extraneous noise or knocking, vibration, etc.), as well as in the event of a power outage or tool stop, disconnect it from the mains and report to the work manager.

4.2. Elimination of tool defects and cleaning it from stuck waste should be done only after disconnecting from the mains.

4.3. In the event of a fire, you should:

• stop working;
• turn off the tool;
• call the fire brigade and inform the management;
• start extinguishing the fire with the available fire extinguishing equipment.

4.4. In the event of an accident, you should:

• take measures to release the victim from the action of the traumatic factor;
• provide the victim with first aid, depending on the type of injury;
• seek medical help at a medical center;
• report the incident to the management of the organization.

4.5. In case of electric shock, you should:

• turn off electrical equipment;
• free the victim from live parts;
• provide assistance to the victim.

5. Labor protection requirements at the end of work

5.1. Close the valve on the air line, remove the working tool from the pneumatic tool and disconnect the hose from the mains.

5.2. Thoroughly wipe and lubricate pneumatic and working tools with oil.

5.3. Roll the hose into neat rings.

5.4. Tidy up the workplace.

5.5. Take the pneumatic tool and hose to the pantry or put them away in the place provided for storage. Prevention should be carried out in accordance with the instruction manual for the tool.

5.6. Wash face and hands with warm water and soap, take a shower.

5.7. Report to the shift worker and the work manager about all the malfunctions noticed in the process of work and the measures taken to eliminate them.

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