As an important heavy-duty construction machinery, excavators play a key role in various types of engineering construction. Correct operating procedures can not only ensure safe and efficient operations, but also extend the service life of the equipment.
Before the operation, a comprehensive equipment inspection must be carried out. Check whether the appearance of the excavator is damaged, including whether there are cracks, deformations, etc. on the fuselage, crawler, bucket and other parts. At the same time, carefully check whether key components such as the engine, hydraulic system, and electrical system are operating normally, and whether there are abnormal noises, oil leakage, leakage, etc. It is also necessary to confirm whether the liquid levels of fuel, hydraulic oil, lubricating oil, etc. are normal. If there is a shortage, it should be added in time. Various instruments and indicator lights must also work normally, such as water temperature gauges, oil pressure gauges, ammeters, etc. In addition, if the bucket, bucket teeth, pin shafts and other parts are severely worn, they should be replaced in time. For second-hand dealers, before selling second-hand excavators, they should conduct detailed inspections and repairs to ensure that the equipment is in good condition, and truthfully explain the condition of the equipment and possible problems to customers. At the same time, they can provide customers with the maintenance history of the equipment, so that customers have a more comprehensive understanding of the equipment.
It is equally important to be familiar with the working environment. It is necessary to understand the terrain, topography, soil quality and other conditions of the work site in order to choose the appropriate operation method and route. Check whether there are obstacles, high-voltage lines, underground pipelines and other dangerous factors around the work site. If there are, corresponding protective measures should be taken. Determine the boundaries and safety warning signs of the work area to avoid exceeding the scope of operation or entering the dangerous area by mistake. Second-hand dealers can recommend second-hand excavator models suitable for specific environments according to the customer's operation needs, and provide some precautions and experience on operation in different environments.
Adjusting the equipment status is also a key step before operation. Adjust the excavator's working device according to the operation requirements, such as the angle of the bucket and the length of the dipper arm. Adjust the seat, armrests, pedals and other parts to ensure the comfort and safety of the operator. Start the engine and preheat it for a period of time so that the engine reaches the normal operating temperature. Second-hand dealers can guide customers to correctly adjust the equipment status to ensure that the equipment is put into operation with the best performance.
During the operation, the excavation operation should choose the appropriate excavation position and angle, avoid excavating hard rocks or obstacles, control the excavation speed and strength, keep the bucket stable, and clean the soil and debris in the bucket in time. During loading operations, aim the bucket at the carriage of the loading vehicle, control the loading speed and force, and avoid overloading. During walking operations, pay attention to the tension of the crawler tracks, keep them stable, control the speed when going up and downhill, and be cautious when crossing obstacles. For other operations, always observe the changes of various instruments and indicator lights. When suspending operations, park the excavator in a safe position and lower the working device to the ground. It is strictly forbidden to operate with open flames or smoke on the excavator. Second-hand dealers can provide customers with operation training, emphasize the importance of correct operation, and improve customers' operating skills and safety awareness.

After the operation, clean up the equipment in time. Clean the appearance and working device of the excavator, remove dirt, debris, etc., clean up dust and oil stains on the engine, hydraulic system, electrical system and other parts, and keep the equipment clean. At the same time, check whether all parts of the equipment are damaged or worn, and repair or replace them in time if necessary. Check whether the liquid level and instrument are normal, and deal with them in time if they are insufficient or abnormal. If the excavator needs to be stored for a long time, it should be parked in a dry and ventilated place, and take protective measures. It can be covered to prevent sun, rain and dust pollution, and regular inspection and maintenance. Second-hand dealers can provide customers with maintenance advice and after-sales service for equipment to ensure that the equipment is always in good condition during use.
In short, correct excavator operating procedures are essential for safe and efficient operation. Second-hand dealers also play an important role in this. They not only provide equipment, but also provide customers with inspection, maintenance, training, advice and other services and support, and jointly promote the healthy development of the excavator industry.