Job Risk Identification Card

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I. Maintenance Worker Position Risk Identification Card – Risk Alerts: 1. Mechanical injuries resulting from the use of electric or pneumatic maintenance tools. 2. Injury caused by lifting operations. 3. Prevent mechanical damage to equipment caused during engine debugging. 4. Electric shock. 5. Fire. Emergency response: 1. In the event of a mechanical injury, immediately remove the victim from the source of harm, apply first aid dressing, and then transport them to a nearby hospital for treatment. 2. After a person gets electrocuted, immediately cut off the relevant power supply or disconnect the victim from the power source. Then provide first aid to the victim; in severe cases, send them to a nearby hospital for treatment. 3. Carry out construction in accordance with the operating procedures, processes, and steps: Inspection and preparation 1. Wear protective equipment before starting work. 2. Prepare disassembly and assembly tools such as wrenches for work. 3. Prepare the specialized measuring tools. 4. Check whether the lifting gear is in good condition and whether the load is securely tied down. 5. Check whether the tool lights and cables are in good condition. 6. Check whether the safety stool is intact and securely supported. 7. Vehicles must be parked in the designated areas. Operation 1: The disassembly and assembly of vehicles should be carried out in sequence. 2. When removing or installing parts, keep both feet firmly on the ground, and do not use excessive force with the wrench. 3. When using flammable materials at a vehicle repair site, one must first check whether there are any open flames or other fire hazards in the vicinity. 4. It is strictly prohibited to enter under the vehicle to inspect the chassis or carry out disassembly and assembly work while the engine is running. 5. When using powered equipment, tools, electric drills, hand grinders, air wrenches, and blowtorches, it is necessary to follow the relevant operating procedures, ensuring that the power is turned off when no one is using them and that any sources of fire are extinguished. 6. Seal the oil drums and tanks with lids. 7. When performing hot work, proper supervision must be ensured; there should be no flammable or explosive materials in the vicinity. 8. Clean up the work area after completing the work. Remarks: 1. Use equipment and special tools properly; do not hammer or strike, and do not engage in any unauthorized operations. 2. Keep spare parts and workpieces off the ground; maintain a clean workspace. 3. When using lifting equipment and performing lifting operations, strictly follow the operating procedures. 4. Be familiar with the emergency response plan. 　 II. Electrical Worker Position Risk Identification Card – Risk Alerts 1. Electric shock. When handling power distribution equipment, first use a voltage tester to check whether the surface of the equipment is charged, in order to prevent electric shock and electrical burns. When the knife switch and air circuit breaker are not in the proper position, arcs can be generated in case of a fault in the power distribution area, leading to electric burns. 3. The equipment may be damaged or an electrical fire may occur. When checking power distribution equipment, if there is oxidation or corrosion at the contact points of various electrical components, cut off the power supply immediately for inspection to prevent damage to the equipment or electrical fires. Emergency procedures: 1. In the event of an electric shock, immediately cut off the power supply or remove the affected person from the live electrical source, and provide first aid on the spot ； 1. Report to higher authorities simultaneously and send the victim to the hospital for further treatment. 2. In the event of an electric burn, stop operating, stay away from live electrical components, cut off the power supply, and take the injured person to the hospital for treatment. 2. In the event of an electrical fire, first try to cut off the power supply as soon as possible, and then proceed with extinguishing the fire ； If the power supply cannot be cut off promptly, carbon dioxide or dry powder fire extinguishers can be used to put out the fire, and the fire emergency number 119 should be called immediately. Procedures and steps: Inspection and preparation 1. Check that all tools and equipment are available and in good condition. 2. Wear personal protective equipment. Step 1: Check whether the equipment is properly labeled as shut down, in operation, in standby mode, or under maintenance. Step 2: Verify that all circuit breakers and air switches on the distribution panel are in their correct open or closed positions. Step 3: Check whether the indicator lights of various automated instruments show any abnormal readings. 4. Check whether the voltage shown on the voltmeter is within the range of 380±5%, and whether the three-phase voltages are stable. 5. Check whether the current indicated by the ammeter falls within the specified range. 6. Inspect each circuit and electrical component on the distribution panel for any signs of discoloration, arcing, or abnormal burning smells. 7. Put away the tools and clean up the work area. III. Risk Identification Card for Lathe Operators Risk warnings: 1. Mechanical injuries: ① Rotational movement of the chuck; ② Operating without a protective cover, with the body too close to the lathe ； ③ The workpiece to be processed is too long. ④ Hands and body getting too close to rotating parts; using hands to stop the rotating chuck. 2. Objects striking against the body. The workpiece and the cutting tool are not securely clamped, causing the workpiece to fly out; 3. Burns from metal shavings. During cutting operations, there is no protective cover, and flying metal shavings can cause injuries; do not use your hands to remove these shavings – use specialized tools for that purpose. 4. Electric shock or electrical burns. When closing or opening the power switch, turn to the side. Emergency response: 1. In the event of a mechanical injury or object strike accident, stop operations immediately, remove the injured person from the source of harm, and take first-aid measures such as stopping bleeding and applying bandages; at the same time, report the incident to the workshop supervisor ； If the injury is severe, you can directly call the emergency number “120” to have the victim taken to the hospital for treatment. 2. In the case of a burn, the affected person should be taken to the hospital immediately for treatment. 3. In the event of an electric shock or electric burn, immediately cut off the power supply or remove the person from the source of danger, provide first aid on the spot, and treat the area affected by the electric burn as a regular wound ； At the same time, report to the workshop supervisor; if the injury is severe, call the emergency number 120 immediately to have the victim taken to the hospital for treatment. Procedures and steps: Inspection and preparation 1. Wear appropriate personal protective equipment, tie the cuffs tightly, wear safety goggles when cutting, and women must tie their hair back inside their work hats. 2. Check whether all parts of the machine tool are in good condition. If no abnormalities are found, turn on the power switch and let the lathe run at low speed for 1–2 minutes to observe whether its operation is normal. 3. Count the cutting tools and other instruments, and select the required tool for clamping. 4. The workpiece and the turning tool must be clamped firmly. 5. It is advisable to use protective covers for the protruding parts of chucks, turnbuckles, and clevises used to hold workpieces. If no protective covers are available, care should be taken to maintain a proper distance when operating, and one should not get too close. 6. When using a center to clamp a workpiece, the center must match the center hole perfectly. Damaged or misaligned centers must not be used. Before use, both the center and the center hole should be wiped clean. The rear seat tip must be securely fixed. 7. After the workpiece is clamped, the chuck wrench must be removed at all times. 8. New workers are not allowed to take up their posts without receiving technical training and safety education. Operation 1: When turning external cylindrical surfaces, end faces, etc., on a lathe, the cutting tool is mounted on the tool holder; generally, the tip of the tool should be at the same height as the center of the lathe. The length of the turning tool extending from the square tool holder should generally be less than 2 times the height of the tool body. The shims must be placed evenly, and no more than 3 shims should be used; the turning tool should be secured in place with two screws. 2. When performing cutting operations on a lathe, pay attention to the installation of the cutting tool, ensuring that its tip is at the same height as the center of the workpiece. The cutting point of the workpiece should be located close to the chuck, in order to prevent vibration of the workpiece during cutting and to avoid cutting at the center point. During operation, feed should be uniform; just before cutting, the feed rate must be slowed down to ensure safety. 3. Before drilling holes on the lathe, the end face must first be turned flat. To prevent the drill bit from bending or breaking, a groove can be made first with a turning tool, or a center hole can be drilled using a center drill as a guide; coolant should be used during drilling. When drilling through holes, the feed rate must be reduced to prevent the drill bit from breaking. 4. When turning long and slender workpieces, a center rest or follow rest should be used to ensure safety. 5. When machining workpieces with irregular shapes, balance weights should be installed, and the machine should be tested for balance before starting the cutting process. 6. When grinding the surface of the workpiece with sandpaper, move the tool to a safe position and avoid letting clothes or hands come into contact with the workpiece surface. When machining the inner hole, do not use your fingers to hold the sandpaper; instead, use a wooden stick, and the speed should not be too fast. 7. After processing is complete, all used items should be wiped clean; the cuttings should be removed using special hooks, and tools, fixtures, and measuring instruments should be oiled as specified to prevent rust. 8. Move the large slide of the lathe to the end at the back of the machine, set all control levers in the neutral position, apply lubricant to all parts that require it, and turn off the main power switch. Notes: 1. Hands and body parts must not come close to moving mechanical components; it is not allowed to use a hand brake to stop a rotating chuck. 2. It is not permitted to install cutting tools while the machine is running ； To change the spindle speed, the machine must be stopped first ； Except when the lathe is equipped with an automatic measuring device during operation, the machine must be stopped to measure the workpiece, and the tool post must be moved to a safe position. 3. Operate strictly in accordance with the operating procedures and wear protective equipment properly. IV. Welder Position Risk Identification Card – Risk Warnings: 1. Fire, explosion. Issues such as the site environment can lead to fires and explosions when exposed to an open flame. 2. Electric shock or electric burns. The safety protection device is damaged ； Failing to turn sideways when operating the power switch; 3. Burns and arc injuries. 4. Fall from a height. During welding at heights, the scaffold is unstable or the safety belt is not worn properly; 5. Injury from falling objects. The weld beads and burrs left after cutting were not cleaned properly. 6. Asphyxiation, poisoning. When welding inside a container, if the operators do not wear protective equipment, it can easily lead to suffocation and poisoning. Emergency procedures: 1. In the event of a fire or explosion, evacuate immediately and transfer flammable and explosive materials to a safe location as much as possible. 1. To prevent a second explosion, take fire-fighting measures under safe conditions, report the situation to the workshop supervisor, and activate the emergency response plan. 2. In the event of electric shock or electrical burns, immediately cut off the power supply or remove the affected person from the hazard area; provide first aid on site before transporting them to the hospital for further treatment. 3. In case of burns, rinse the affected area immediately with plenty of clean cold water, then take the victim to the hospital for treatment. 4. In the event of a fall from a height: if the head hits the ground first, with symptoms such as vomiting or loss of consciousness, which may indicate brain injury, send the victim to the hospital immediately for emergency treatment ； ②If the injured person is bleeding from the ears or nose, it is strictly forbidden to use handkerchiefs, cotton, or gauze to block the bleeding ； ③The injured person landed on their waist and back first; there may be a spinal fracture and paralysis of the lower limbs – do not move them arbitrarily ； ④Along the axis of the injured person’s torso, roll them onto a rigid stretcher or wooden board while keeping them in a supine position. During transportation, be cautious of any jolts or bumps ； ⑤Upon discovering the patient, immediately call the emergency number 120 and inform the workshop supervisor. 5. In the event of mechanical injury, stop operating immediately, move away from the source of danger, and take immediate first-aid measures such as stopping bleeding and applying bandages; at the same time, report the incident to the workshop supervisor ； If the injury is severe, call the emergency number \"120\" immediately to have the victim taken to the hospital for treatment. 6. In case of someone suffering from suffocation or poisoning, move them promptly to a well-ventilated area with fresh air, loosen their collar buttons and belt, keep them warm, and carry out first aid measures such as cardiopulmonary resuscitation. At the same time, call \"120\" for emergency assistance; don’t forget to inform other people to report the situation to the workshop supervisor. Procedures and steps: Inspection and preparation 1. Check whether the tools and equipment are in good condition, whether the welder’s casing is properly grounded, and whether the terminals are exposed. The grounding wire must be secure and reliable; it is prohibited to use scaffolding, steel wires/cables, machine tools, etc., as grounding wires. 2. Carefully inspect the working environment: within a 10-meter radius of the operating area, no oils or other flammable and explosive materials should be stored (including pipelines carrying flammable or explosive gases) ； During on-site welding, all flammable materials in the surrounding area must be removed; those that cannot be removed need to be properly protected, and fire-fighting equipment should be available. When there are precision items such as rollers, guide rails, and electrical equipment around the welding site, protective measures must be taken to prevent weld spatter and arc burns. Work may only commence after ensuring safety. 3. Wear proper personal protective equipment, including protective gloves, goggles, and a safety helmet. A license is required to work. When working at heights, be sure to wear a safety harness. Wear protective glasses when knocking off slag and using grinding wheels. When welding face up, fasten the collar and tie up the cuffs. 4. When preheating parts for welding, heat-insulating measures such as asbestos cloth or backing plates should be used. 5. When multiple welding machines are used for welding together, the welding platform or the workpiece must be grounded, and light-blocking panels should be in place. Operation 1: When welding, select the appropriate welding rod and welding current based on the material to be welded. For components that require high strength or are used in areas subject to frequent vibration, it is necessary to create a bevel before welding. After welding each layer, special tools must be used to remove the slag completely. After welding is complete, the slag and spatter must be cleaned away thoroughly. 2. When welding on the equipment, it is necessary to take proper precautions to protect valuable items. And ensure proper collection of welding spatter and the slag that has been knocked off. When removing the protective cover after welding is complete, be careful not to let slag or other debris fall inside the equipment. 3. When welding inside a container, someone must be stationed outside to monitor the process, and adequate ventilation measures must be in place; the lighting should use a power supply with a voltage of less than 36V. Welding is prohibited in containers that have been painted or coated with plastic. 4. When welding, cutting, or sealing containers and pipes, vent holes should be created first. To repair containers that have been oiled, they must be thoroughly cleaned; the cover or vent holes must be opened, and welding or cutting can only be carried out after approval by a safety officer. 5. When welding at heights, a scaffold should be set up or a safety belt should be worn; the task must be carried out by persons in good health. 6. Once the work is completed, the welding machine must be turned off, the power supply disconnected, the site inspected and cleaned, and any sources of fire extinguished before leaving. Note 1: Welding is strictly prohibited on windows or pipes under pressure; power must be disconnected before welding equipment that is still powered. 2. Welding torches and welding wires should be regularly inspected and maintained; any damage detected should be repaired or replaced promptly. If a short circuit occurs during welding, the welder should be turned off first, and then the cause of the short circuit should be identified to prevent damage to the welder. 3. Wear gloves when changing welding rods, and avoid resting your body against metal plates or other conductive objects. 4. Wear protective glasses when knocking out slag ； To move a portable welding machine, it is necessary to first shut down the machine and disconnect the power supply. 5. Risk Identification Card for Gas Welders – Risk Alerts: 1. Explosion: Improper storage or use of gas cylinders, exposure to open flames, radiation, etc ； Severe collisions and impacts during handling and loading/unloading ； 1. Rapid oxidation when oxygen is delivered with grease on the gas cylinder. 2. Burns and scalds: Spattering of molten droplets and iron slag can cause burns and scalds. 3. Fires: Larger molten droplets and iron slag can ignite flammable materials, leading to fires. During high-altitude cutting operations, flammable materials within the range of the sparks can cause fires. Emergency procedures: 1. Immediately call the fire emergency number 119 to report the incident and inform your superiors. The personnel on site employed effective methods to control the spread of the fire, cut off the power supply, used fire extinguishers properly to put out the fire, and evacuated people and equipment. If anyone is injured, immediately move them to a safe place for on-site treatment and call the emergency number 120. 2. In the event of burns or scalds, stop operating, dress the wound, and take the affected person to the hospital for treatment. Procedures and steps: Inspection and preparation 1. Wear protective gear, including gas welding goggles. 2. Have fire extinguishers and other firefighting equipment on site, and clear any flammable materials from the work area. 3. Check that the connections of the gas pipes are secure. 4. Inspect the gas cylinders to ensure they are in good condition and not misused. 5. Verify that the pressure regulators are properly sealed, with accurate pointers that function smoothly. 6. Check that the cutting torch is well-sealed, that its interior is unobstructed, and that all control valves operate properly. 7. Maintain a distance of at least 5 meters between gas cylinders, and at least 10 meters between gas cylinders and the area where welding takes place. 8. A safety supervisor must be present at the work site when operating in areas where electrical welding is not permitted. Operation 1: Lift the part to be cut so that the cutting area is in the air, and remove any oil or debris from the surface. Use a marking pen and a steel rule to draw the cutting line on the workpiece. 2. When starting the cut, keep the cutting nozzle perpendicular to the surface of the workpiece; first preheat the cutting area with a neutral flame, and then proceed with the cut using a hotter flame. 3. When the preheating point turns bright red, slowly open the cutting control valve. Tilte the cutting nozzle back at an angle of 25–40 degrees relative to the workpiece; keep the distance between the nozzle and the workpiece surface at 10–15 millimeters. The cutting tool should move in a steady manner at a consistent speed. 4. After cutting is complete, quickly close the oxygen regulator valve for cutting, lift the cutting tool, then close the acetylene regulator valve, and finally close the gas cylinder regulator valve. Note 1: A fire operation permit must be obtained when working in the field. 2. After the gas cutting operation is completed, conduct a thorough on-site inspection to ensure that there are no open flames before leaving the site