3. Static load test: The purpose of the static load test is to test the structural bearing capacity of the crane and its components; the static load test of each lifting mechanism should be conducted separately. Before the static load test of the main hook, the unloaded trolley should be parked in the middle of the span and the reference point should be determined;

4. Dynamic load test: The purpose of the dynamic load test is to verify the functions of the crane's various mechanisms and brakes. The dynamic load test of each mechanism of the crane should be carried out separately first, and then the joint action experiment should be carried out. The two mechanisms should be activated at the same time, but the main and auxiliary hooks should not be activated at the same time.