Rough handling should be avoided when operating construction machinery, as this inevitably generates impact loads, leading to frequent malfunctions and significantly shortening its lifespan. Impact loads generated during operation cause premature wear, fracture, and breakage of the machinery's structure. Furthermore, they create impact pressure in the hydraulic system, which damages hydraulic components, causes premature failure of oil seals and high-pressure oil pipe joints at the hose connections, resulting in leaks or bursts, and frequent operation of the relief valve causing oil temperature increases.
Our company recently purchased a new excavator, and every 4-6 days during operation, the bucket door oil pipe leaks or bursts. The oil pipe is a genuine imported product and has been tested and found to have no quality issues. On-site observation revealed that the leak is caused by the strong impact of the bucket door opening and closing on the limit block and frame. To effectively avoid impact loads: operating procedures must be strictly followed; hydraulic valves should not be opened or closed too abruptly or rapidly; avoid pushing the working device components to their extreme positions to generate strong impacts; hydraulic equipment without impact function should not be used with its working device (such as the excavator bucket) to violently impact the workpiece to achieve a breaking effect. Another important point is that the operator must maintain a stable posture. Because the free clearance of each piece of equipment's operating system varies, the wear and tear on connecting parts differs, and the output of the engine and hydraulic system also varies, these factors give each piece of equipment its own unique characteristics. Only by carefully exploring and adjusting their operating actions to adapt to the equipment's individual characteristics can operators develop good operating habits that suit the equipment's specific needs through long-term operation. The construction machinery industry's adherence to a system of assigning specific personnel to specific machines is also a contributing factor.
