1. Dismantle install the material hoist for instructions, delimit the protection area conduct personnel supervision.

2. The use of derrick (gantry) shall meet the requirements of technical specification for material safety of gantry derrick (jgj88-92). The construction plan, operation procedure maintenance system shall be formulated the acceptance procedure shall be implemented.

3. The cage of the material hoist uses a fixed docking device, an ultra-high limit device is set. Section steel shall be used for the roof beam, which shall be determined by design calculation.

4. The material hoist shall be installed firmly reliably, the wire rope shall be used on the ground. Any wire rope passing through the passage shall be covered.

5. Do use the lifting wire rope for a long time, firmly clamp its end the reel with the pressing device. The fixed rope clamps at the end of the wire rope shall match the diameter of the wire rope, the number of them shall be less than 4, the spacing shall be less than 6 times of the diameter of the wire rope. The rope clamp saddle is located on the side of the stressed rope.

6. The material hoist shall be equipped with wall bracket. The material of wall bracket shall be consistent with that of frame. The wall bracket shall be connected with the frame of the electric hoist of the building light crane the cantilever crane. On the scaffold, the setting of fixed wall bracket shall meet the design requirements, but the interval shall exceed 9 meters, the fixed wall bracket shall be set on the top floor of the building.

7. When the material hoist is unable to install the connected wall frame for some reason, the wind rope can be used to stabilize the frame. The wire rope is selected the wire rope, the diameter of the wire rope is less than 9.3 mm. Place a group of wind ropes under 20 meters, then add one group for every 10 meters. There are four lines in each group. The angle between the cable the ground is between 60 45 degrees. The lower end is connected to the ground anchor. Specify the settings. The wire rope is adjusted tightened with basket bolts.

8. The material hoist shall be installed in a flat firm position, the rainproof smash proof operation shed shall be set up. The operator shall have good operation sight contact method. Due to the limitation of the conditions affecting the line of sight, special signal director communication equipment shall be installed.