Reasons and solutions for abnormal shaking of the instrument panel of the loader

Loader is one of the common construction machinery at present. Many people consider the model and configuration of the loader when purchasing a small loader, often directly linking the model and configuration with the price. Little do they know that the later maintenance and upkeep of the loader are also very important, especially the wear and tear of the parts used in various parts of the loader, especially the key parts, and the effective production service life, which are important factors affecting the overall performance of the loader.

After buying a loader, some of them work continuously and some work intermittently. Firstly, it is necessary to distinguish and distinguish between these two situations, and do a good job of basic maintenance. Whether it is used every day or not for a long time, the maintenance plan is different. It is provided by a professional loader manufacturer. Most loaders will experience instrument panel and cab shaking after 3000 hours of operation, and the shaking phenomenon of some loader instrument panel and cab is becoming more and more serious. The shaking phenomenon causes many data to be unable to be accurately measured and displayed, and cannot be used normally. Below, the technicians from Laizhou Kaixing Loader will analyze the causes of vibration and provide solutions?

The hydraulic system of the loader adopts a steering priority mode, where the pressure oil output from the steering pump merges with the pressure oil output from the working pump to supply oil to the working device. The working pump only bears the load when the working device is in motion, while the steering pump not only bears the load when the working device is in motion, but also when turning. Therefore, the working time of the steering pump is relatively long and the wear is significant. This is one of the important factors causing instrument panel shaking and even cab shaking in small loaders.

Under the joint action of the priority valve body, valve core, pressure regulating spring, and pressure oil, the opening and closing of the EF port of a small loader change with a certain frequency, resulting in a certain frequency of vibration. Due to the vibration being close to the natural frequency of the instrument panel and cab, resonance occurred in the instrument panel and cab. This is also a common cause of shaking. So to solve the problem of abnormal shaking of small loaders, in addition to ruling out the causes and factors of irreversible damage to parts, we also need to regularly perform corresponding maintenance and upkeep on key parts of the loader.