The unique mechanical transmission design of the jack abandons the dependence of traditional hydraulic jacks on hydraulic oil, thereby greatly simplifying the maintenance process and reducing maintenance costs. However, even for such a jack that is easy to maintain, users still need to pay attention to some key maintenance details during daily use to ensure its long-term stable operation and efficient performance.

1. Regular inspection and cleaning
Although the SJ mechanical jack does not rely on hydraulic oil, regular cleaning is still essential. During use, the jack may be contaminated with dust, oil or other impurities, which will not only affect the appearance of the jack, but also cause wear or blockage of the internal mechanical parts. Therefore, users should regularly use a clean cloth or brush to clean the surface and key parts of the jack, especially the rack, gear and other parts that are prone to dust accumulation. At the same time, check whether the various parts of the jack are loose or damaged. If found, they should be tightened or replaced in time.

2. Lubrication and maintenance
Although the standard mechanical jack does not rely on hydraulic oil to work, proper lubrication is essential to keep its internal mechanical parts running smoothly. Users should select appropriate lubricants to lubricate key parts such as gears and bearings of the jack according to the maintenance manual provided by the manufacturer. The selection of lubricants should take into account factors such as the working environment and temperature to ensure that they have good lubrication effect and stability. During the lubrication process, users should be careful not to use excessive lubricants to avoid oil stains or affect the normal operation of the jack.

3. Correct operation and storage
The correct operation method and storage method are also important factors in extending the service life of SJ mechanical jacks. When using the jack, users should follow the operating guidelines provided by the manufacturer to avoid overloading or improper operation. During the lifting or lowering process, the handle should be operated smoothly to avoid sudden force or rapid rotation to reduce the impact and wear on the mechanical parts. In addition, when the jack is not in use, it should be stored in a dry, ventilated, non-corrosive gas environment to avoid direct sunlight and rain. At the same time, the jack should be placed on a stable ground to avoid long-term pressure or external force impact.

4. Pay attention to the use environment
Although the standard mechanical jack has strong environmental adaptability, it still needs special attention in extreme working environments. In high temperature, low temperature, humid or dusty environments, users should pay more attention to the maintenance of the jack. In high temperature environments, the state of the lubricant should be checked regularly to ensure that it has a good lubrication effect; in low temperature environments, the jack should be avoided from being exposed to cold air for a long time to prevent the internal mechanical parts from being damaged due to cold shrinkage; in humid or dusty environments, the frequency of cleaning and lubrication should be increased to prevent dirt from damaging the jack.

5. Establish a maintenance file
In order to better track the maintenance of standard mechanical jacks, users can establish a maintenance file. Record the time, content, replaced parts, and problems found in each maintenance in the file. This can not only help users understand the maintenance status of the jack in a timely manner, but also provide a reference for future maintenance work. At the same time, the maintenance file is also one of the important bases for evaluating the service life and performance of the jack.