The building hoist electric hoist is an electric hoist that plays an important role in the construction of the national economy. At present, the establishment of every high-rise building is inseparable from the use of the building group hoist electric hoist. The application in climbing frame is also very wide. The group hoist is a kind of advanced lifting equipment. As long as we use it correctly in our work, there will be little danger. DHP group hoist is an ultra-low speed chain electric hoist , A kind of light and small lifting machinery, has the characteristics of slow lifting speed, stable operation, light body weight, high hardness of the parts, and little wear. It is often used in climbing frames in the field of construction engineering and group hanging of large oil tanks, so it is called "group hanging electric hoist". However, once the problem occurs during the operation, the failure will cause heavy losses, so today I will tell you about the necessary inspection content before using the group hoist. 1. Whether the movement of the upper and lower limiters of the group hoist electric hoist is accurate. 2. Check whether there are foreign objects on the running track of the group hoist. 3. Whether the group hoist electric hoist hook pulley can rotate flexibly. 4. Check whether the working scope of the staff and the route of cargo transportation are smooth. 5. Check whether the connection between the group hoist and the control cabinet is correct. 6. Check the sensitivity of the button action of the remote control of the group hoist electric hoist, whether the motor and reducer have abnormal noise. 7. Whether the group hoist electric hoist hook is flexible to rotate in the horizontal and vertical directions. 8. Whether the group hoist electric hoist brake is sensitive and reliable.