What are the tips for choosing a second-hand excavator? How to observe from a young age

After the Spring Festival, it has reached the most popular point for construction machinery every year, and the transaction volume of equipment has surged. Whether it is new or second-hand equipment, there may be a hint of gunpowder smell. How to choose a reliable device that satisfies you? Let Huacheng take you through the competition between merchants and the gap in device comparison. What are the commonly used methods in the market that need to be guarded against.

Entering the market is not a model you need first, don't look at it. If you don't want a brand, temporarily put it on hold. If the existing brand doesn't have ideal equipment, you can simply refer to it as a reference or target. Sellers can interfere with their thinking through a large number of devices in the market. If the equipment exceedsMore than 10 units will affect judgment.

Year is one of the standards for borrowing a device, but the usage time should not be taken seriously. Currently, in China, both buyers and sellers modify the usage time in order to achieve a price increase, which has become the default norm. Having a shiny appearance doesn't necessarily mean the original paint is good either. Devices should not be judged solely by their appearance. Carefully assess whether the appearance damage affects the eyesight of large objects and conduct testing simultaneously.

Observe the quality of the usage environment based on whether there is damage to the chassis, and determine wear and tear by checking for cracks and errors in the large and small arms. Whether there is spray paint or hidden damage on the top of the cab can be observed from the inside of the cab. There is a high possibility of damage to the cab due to construction reasons, but there must have been serious construction accidents causing equipment damage if the cab is injured on the top. Carefully observe the connection port between the engine and the hydraulic pump to see if there are any disassembly and assembly issues. For minor faults, there is no need to disassemble the entire assembly. Whether the idle speed is increased or not, some power deficient equipment often can only achieve a performance illusion by increasing the idle speed. The problem of falling speed only manifests in insufficient engine speed during equipment use, which affects the overall power of the machine. Although the speed regulation of hydraulic pumps can quickly tap into the potential of excavator performance, the high failure rate and the possibility of damage will inevitably lead to irreversible accidents and failures over time.

The difference between good and bad market equipment is not based on price, but requires a discerning eye to select a second-hand excavator that not only pursues price but also perfect performance.