1) Before use, check that all parts are in good condition and the oil is clean. It is strictly forbidden to use the safety plug of the hydraulic jack if it is damaged, or the thread of the screw and rack jack is 20%.2) The jack should be placed in a flat, solid place and leveled with a mat.3) The ja

The jacks are divided into two types: Mechanical jacks and hydraulic jacks. The principles are different. In principle, the hydraulic jack is based on the Pascal principle, that is, the pressure across the liquid is uniform, so that in a balanced system, the pressure exerted on the smaller piston is

1. It is necessary to check whether the parts are normal before use.2. When using, the provisions of the main parameters should be strictly observed. Avoid excessive overload. Otherwise, when the lifting height or lifting tonnage exceeds the specified level, serious oil leakage will occur at the top

The jack is the simplest lifting equipment with a lifting height of less than 1m. It uses a steel lifting member as a working device to lift the heavy lifting equipment in the stroke through the top bracket or the bottom bracket. It is divided into mechanical and hydraulic types. Jacks are mainly us

The trailer jack is known as the universal tool for towing, as it can tow when the vehicle is blocked or damaged. The use of trailer jacks is very convenient and does not require a lot of force or special skills. However, its uninstallation handling is also very important because if not uninstalled