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1、 Types of jacks
There are various types of jacks, including manual jacks, hydraulic jacks, pneumatic jacks, etc. Manual jack is the most common type, suitable for lifting small vehicles or light goods; Hydraulic jacks are suitable for lifting heavy goods or large vehicles and have the advantage of stronger load-bearing capacity; Pneumatic jack is an efficient and convenient lifting tool, suitable for the maintenance of large machinery and heavy vehicles.
2、 Structure of hydraulic jack
A jack is usually composed of a main body, a top rod, a top seat, a handle, a hydraulic device, and other parts. The main body is the main load-bearing component of the jack, usually made of steel or cast iron; The top rod is the lifting component of the jack, which moves upwards through the operation of the handle; The top seat is the part where the jack comes into contact with the lifted object, usually made of rubber or steel.
3、 How to use a jack
Before using a jack, it is necessary to first select the correct type and load-bearing capacity of the jack to ensure that it can withstand the weight of the lifted object. Next, it is necessary to find the support point of the lifted object and tightly contact the jack base with the support point to ensure stability. Then, use the handle to lift the top rod until the lifted object reaches the desired height. Finally, place the lifted object firmly on the support point, lower the top rod, and retract the jack.
In short, a jack is a simple and practical lifting tool that is not only suitable for vehicle maintenance, but also for industrial production and construction fields. Proper use of jacks can not only improve work efficiency, but also enhance work safety.
