Victim Crushed to Death between Turning Forklift and NC Milling Machine Grave Accident Case in Manufacturing Sector 교육미디어 -1015
Victim Crushed to Death between Turning Forklift and NC Milling Machine The copyright of this material is owned by the Korea Occupational Safety and Health Agency (KOSHA) and unauthorized and arbitrary use hereof is strictly prohibited. However, if an individual wishes to use it for a non-commercial objective, he/she may use do so by revealing its source. If a corporation wishes to use it, permission must first be obtained from KOSHA. Any unauthorized use hereof constitutes a breach of copyright law and such action is subject to legal sanctions. Detail II Cause III Prevention IV Overview I I
Victim Crushed to Death between Turning Forklift and NC Milling Machine Overview of Accident When: Sep. 22 (Fri.), 2007, 20:00 Where: In front of the NC milling machine within XX Industrial Company’s factory located in Gimhae, Gyeongnam Who: Victim, who was watching a forklift work How: The victim was hit by the back of the forklift (counterweight) as the forklift was turning right to carry an MCT. Why: The victim’s abdomen (stomach) was crushed between the forklift and NC milling machine. Ⅰ Ⅰ
Victim Crushed to Death between Turning Forklift and NC Milling Machine Details of Accident On Sep. 22 (Sat.), 2007, the victim began organizing things to prepare for a plant move with a co-worker. At 19:30, a truck loaded with an MCT arrived at the factory and the rented forklift driver unloaded the machine from the truck and put it app. 6m in front of the installation position within the factory. As the forklift unloaded the MCT from the truck on the machine’s side, the machine was turned upright and placed near the installation position. Ⅱ Ⅱ
Victim Crushed to Death between Turning Forklift and NC Milling Machine Details of Accident As the forklift drove forward to the gap between the MCT and NC milling machine (app. 6m) to lift the MCT from the front and turned right. While watching the forklift work, the back of the forklift (counterweight) hit the victim on the stomach and he was pinned against the NC milling machine. The victim was taken to a hospital but died during treatment. Ⅱ Ⅱ
Victim Crushed to Death between Turning Forklift and NC Milling Machine Details of Accident Accident Situation Ⅱ Ⅱ TypeD160S-5Capacity16 tons Speed30km/hLength5,470mm Width2,490mmHeight2,928mm Gross weight18,900kgDrive typeTire FuelDiesel Cause: Forklift MCT #8 final installation position A line Gap: 6m First location for unloading MCT #8 NC #5 Forklift turning radius : 4M Entrance
Victim Crushed to Death between Turning Forklift and NC Milling Machine Details of Accident The minimum turning radius of the forklift is 4m and the position of entry where no contact with the NC milling machine is possible is at least 2.7m away from the A line shown on the accident situation diagram. However, the position where the victim was crushed indicates that the forklift did not reach at least 2.7m away from the normal entry point but made an abrupt turn to the right at the point 1~1.7m away from the entry point, pinning the victim to the NC milling machine with the tail part (counterweight), crushing him to death. Ⅱ Ⅱ
Victim Crushed to Death between Turning Forklift and NC Milling Machine Ⅱ Ⅱ Details of Accident Site of accident
Victim Crushed to Death between Turning Forklift and NC Milling Machine Details of Accident Ⅱ Ⅱ Forklift as the cause of the accident (16 tons)
Victim Crushed to Death between Turning Forklift and NC Milling Machine Details of Accident Ⅱ Ⅱ NC milling machine #5 Position where the victim was crushed by the forklift counterweight
Victim Crushed to Death between Turning Forklift and NC Milling Machine Details of Accident Ⅱ Ⅱ Location of accident NC #5 Forklift turning Forklift driving (moving) path MCT #8
Victim Crushed to Death between Turning Forklift and NC Milling Machine Cause of Accident Access allowed to areas with contact risks The forklift carried a machine while a worker was standing within the risk area where the forklift could contact the worker. Lack of preventive measures including forklift contact prevention There was no supervisor who could supervise and assist the forklift operations during the accident. Lack of skills in operation of the forklift The forklift operator should have considered the width of the entryway and minimum turning radius when turning to the side. The forklift turned at a position where the forklift could contact the victim and the risk became reality when it hit the victim with its back (counterweight), and crushed the victim to death. Ⅲ Ⅲ
Victim Crushed to Death between Turning Forklift and NC Milling Machine Prevention of Accident Complete installation of fall protection At a place where a worker may fall or stumble such as the edge of a workshop, machine, floor of equipment or end of walkway and path or an opening, a safety parapet, fence, handle or a sufficiently strong cover should be installed. Ⅳ Ⅳ A compliant safety parapet needed at an opening Warning fall risk
Victim Crushed to Death between Turning Forklift and NC Milling Machine Prevention of Accident Allow no access into forklift risk areas Ⅳ Ⅳ A supervisor should be present to prohibit access to sites where the worker has a risk of being hit by a forklift or vehicle-type loader being used for unloading.
Victim Crushed to Death between Turning Forklift and NC Milling Machine Prevention of Accident Prevention of forklift contact and safe operation When using a forklift, it is necessary to create an operation plan specifying the dimensions of the workshop, forklift type and capacity, load type and shape, operation path and method and perform operations as per the plan. A supervisor or a guide should be assigned to facilitate safe operation or driving in accordance with the operation plan. Also, the forklift operator should follow the guidance of the supervisor or guide and their signals. Ⅳ Ⅳ
Victim Crushed to Death between Turning Forklift and NC Milling Machine Prevention of Accident Ⅳ Ⅳ Risk factorCause 1. Fall of load - Insecure loading - Unskilled operation - Improper selection of work equipment - Sudden start, stop or turn 2. Confinement and collision - Poor forward view due to large loads - Turning radius of the rear part due to the rear wheel drive 3. Overturn of vehicle - Failure to smooth bumpy surface - Overloading - Smaller vehicle compared to load size - Sudden turn, start or stop 4. Fall of worker - Operator seated at another position than driver’s seat - Forklift operation for improper purposes (high place, etc.) - Failure to fasten driver’s seatbelt during operation Major risks during forklift operation
Victim Crushed to Death between Turning Forklift and NC Milling Machine