Trailer maintenance:1. Daily maintenance:(1) After each operation, the trailer body and chassis should be cleaned in time.(2) Check whether all safety devices and light pens are reliable.(3) Check whether the leaf springs and U-bolts on the front and rear axles of the trailer are loose, displaced, c

Jacks play an important role and influence in our daily lives. In its long history of development, it has met the needs of the public and therefore continues to attract the attention and attention of many consumers. As consumers' knowledge and understanding of jacks deepens, many users have become k

Using a car jack is very simple. Find a relatively flat surface, then place the jack on the ground, aim it at the bottom edge of the car, and turn the handle to lift the roof. Generally speaking, the factory jack that comes with a car is relatively simple. This jack is easy to use and uncomplicated.

A car jack is a device used to lift a car for changing tires, repairing the underside of the car, or cleaning the underside. However, improper use may result in vehicle damage or personal injury. Therefore, when using a car jack, we should strictly follow the following steps.The first step is to pla

When using an electric jack, if there is idling, first loosen the oil drain screw on the pump body, make the pump body vertical, and idle several times with the head down, then tighten the oil drain screw and continue to use it. When using, do not increase partial load or overload to avoid the risk