If a screw jack malfunctions during use, it will reduce work efficiency and affect the normal use of the jack. In order to reduce the occurrence of such accidents, what are the fault prevention measures for screw jacks?

1. The tonnage of the heavy object lifted by the jack during operation should not exceed the load-bearing capacity of the jack to avoid overloading the operation.

2. Choose suitable jack materials based on the working environment on site to avoid danger.

3. Regularly clean and maintain the jack to avoid rusting and damage.

4. Do not store or use the jack in a damp environment.

5. Before homework, carefully read the operating manual of the jack and follow the instructions to avoid danger.

Taking preventive measures for screw jacks can effectively reduce the frequency of malfunctions, improve work efficiency, and make the jacks more durable.