The company producting crane should built complete security technology file,which includes as the follow,

1.Technology data,manufacturer's certificate,the instructions of maintenance,the picture of easily-worn parts,the drawing of

electrical components,the test report of necessary security attachment and the inspection and certify file.

2.The technology data which is needed in the process of installation,the installing address and the begining time.

3.The acceptance certificate which is made by some rellevant department,and it report.

4.The record of the daily maintance,repair,reshape,check and test.

5.The record about the problem of the machine and the human.

6.The security estimation of the charged apartment.

7.The record of the special equipment,security accessary,protection equipment and so on.