Common causes of accidents involving second-hand excavators

Recently, many serious accidents caused by excavator accidents have been reported by the media, which have caused warnings. Shanghai Huacheng Second hand Excavator Market warns users: please strictly follow the excavator operation process and operate in accordance with itDevelop good inspection and maintenance habits after the excavator is used up. During the operation of a second-hand excavator,The causes of accidents involving second-hand excavators mainly include two aspects: human factors and equipment factorsThe human factor is mainly due to the psychological reasons of managers or users, such as taking chances, saving trouble, and rebelling, which leads to irrational behavior. The equipment factor is mainly due to the failure to design, manufacture, install, repair, and maintain the equipment as required, especially the failure to conduct inspections as required; Disease "; Running, thus planting safety hazards.  

　　The main causes of excavator accidents with a large proportion are human factors, which can be divided into:

a. The operation of second-hand excavators violates safety operating procedures, such as overloading or unconfirmed excavation weight, inclined pulling and lifting, standing within the rotation range of the excavator, and unqualified operators;
b 、 The equipment safety protection device is not installed or has failed. If the lifting height limiter, excavation limit limiter, torque limiter, operating limit limiter, etc. are not installed or fail, the equipment grounding or zero connection is unreliable, and the leakage protection is unreliable;
c 、 The inspection and testing work was not carried out as required. If a regular inspection system (such as pre shift inspection, weekly inspection, monthly inspection, etc.) is not established and implemented, and if it is not reported to the supervisory and inspection agency for acceptance inspection and regular inspection as required, resulting in equipment being damaged; Disease ";;
d 、 There are no safety supervisors or warning signs during maintenance. If adjacent devices are not monitored during operation, and warning signs are not hung on the ground power switch;
e 、 Failure of maintenance personnel to wear protective labor equipment as required;
f 、 The wheeled excavator did not follow the prescribed procedures;
g 、 During the operation of the car excavator, the safety distance between the equipment and lifting objects and the electrical wires in the working environment was not ensured.

　　In response to various causes of accidents involving second-hand excavators, the user unit should closely cooperate with the manufacturing, installation, and maintenance units, as well as the excavation machinery supervision department and inspection agencies, strengthen management work, implement various inspection systems, eliminate safety hazards, and minimize the possibility of accidentsThe using unit must at least do the following work:

a. Efforts should be made to strengthen safety awareness work, from safety personnel to operators, maintenance and inspection personnel, to cultivate safety awareness and consciously avoid unsafe behaviors;
b 、 Strictly implement safety operating procedures and eliminate illegal operations;
c 、 Develop a comprehensive inspection and testing system and strictly implement it;
d 、 Train and assess operators.

　　Handling of injury accidents caused by second-hand excavators

The handling of second-hand excavator injury accidents can generally be divided into five stages: on-site handling, investigation of accident details, analysis of accident causes, and closure of accident handling. The unit where the accident occurred should pay attention to:

1) After an injury accident occurs during the operation of a second-hand excavator, the unit must do everything possible to organize the rescue of the injured and national property, take effective measures to stop the spread and expansion of the accident, and carefully protect the accident scene. Any objects, traces, conditions, etc. that may be related to the accident must not be artificially damaged. If it is necessary to move certain objects on the scene to rescue the injured, they must be marked, photographed, and recorded in detail.
2) At the same time as handling the scene, the unit should immediately report the accident overview to the local safety supervision department and relevant competent authorities by telephone, telegram or other rapid methods.
3) After a clear analysis of the causes and responsibilities of the accident, serious measures should be taken in accordance with relevant laws and regulations

(1) Accidents that require accountability from relevant leaders, including:

a. The lack of sound rules and regulations, as well as safety operating procedures, has left employees with no opportunity to follow;
b 、 Employees were ordered to work without receiving safety technical training or obtaining a certificate of qualification;
c 、 The excavation equipment has not undergone regular maintenance, has not passed safety inspections, or is still allowed to be used due to defects in the equipment;
d 、 Knowing that the equipment is operating in an unsafe environment without taking protective measures.

(2) Accidents where the perpetrator or relevant personnel are held accountable, including:

a. Violation of command regulations, illegal operations, and dereliction of duty;
b 、 Failure to report emergency situations and take emergency measures;
c 、 Not obeying management, violating labor discipline, leaving duty without permission or lifting equipment without authorization.