1. The elevator is maintained and managed by designated personnel, and the key to the power switch box is managed by designated personnel.

2. The hoist must have a hoist limiter and a travel limiter, and the limiter should enable the pulley to automatically stop before lifting to a distance of 300mm from the drum or pulley.

3. The hoist should have a maximum load mark, and the weight should not exceed the load limit (1T) during lifting and landing.

4. After power transmission, check the safety devices such as the hoist limiter, travel limiter, interlock switch, etc. for sensitive and reliable operation, and conduct a trial lifting.

5. Before lifting or landing, the car can only be driven after sounding the alarm bell.

6. Elevators are strictly prohibited from carrying people up and down.

7. After the work is completed, the lifting platform of the hoist should land, then cut off the power and close the upper and lower guardrail doors.

8. Regularly maintain the hygiene of the surrounding environment of the elevator.

1.Bucket elevators should be started under no-load conditions. Therefore, all the materials in the buckets should be discharged before each shutdown, and then the elevator can be stopped.

2.Reverse rotation is not allowed. Reverse rotation may lead to the derailment of the chain, and it is very troublesome to troubleshoot and fix the derailment problem. 

3. Feed materials evenly. Sudden increase in the feeding amount is prohibited. The feeding amount should not exceed the conveying capacity of the elevator. Otherwise, it is likely to cause serious accumulation of materials at the bottom and even result in a "stalled" accident in severe cases.

4. Lubricating oil should be replenished in a timely and appropriate amount. 

5. When the chains and buckets are severely worn or damaged, they should be replaced in a timely manner.

1.Bucket elevators must be firmly installed on solid concrete foundations. The surface of the concrete foundation should be flat and in a horizontal state to ensure that the bucket elevator meets the verticality requirements after installation. For bucket elevators with a relatively high height, the middle and upper casings should be connected to the adjacent buildings (such as silos, workshops, etc.) at appropriate positions to increase their stability. During installation, first install the lower components and fix the anchor bolts, then install the middle casing, and finally install the upper casing. After the casing is successfully installed, correct its verticality. Measure it with a plumb line from top to bottom of the whole height, and the error should be less than 10 mm. The upper and lower shafts should be parallel, and their axes should be in the same plane. When installing a bucket elevator with a relatively low height, the upper, middle and lower casings can be completely connected and properly aligned on the ground level, and then the whole assembly can be hoisted vertically and fixed on the concrete foundation.

2. After the casing is installed, install the chains and buckets. The U-shaped screws used for connecting the buckets are both the joints of the chains and the fixing parts of the buckets. The nuts of the U-shaped screws must be tightened firmly and reliably locked to prevent loosening. 

3. After the chains and buckets are installed, properly tension them. 

4. Add an appropriate amount of engine oil and grease to the reducer and the bearing housing respectively. The reducer is lubricated with industrial gear oil. Either calcium-based or sodium-based grease can be used in the bearing housing. 

5. Trial operation: An empty-load trial operation should be carried out immediately after the installation is completed. During the empty operation, attention should be paid to the following points: Reverse rotation is not allowed, and there should be no collision phenomenon. The empty operation should last for no less than 2 hours, and there should be no overheating phenomenon. The temperature rise of the bearings should not exceed 25 °C, and the temperature rise of the reducer should not exceed 30 °C. After 2 hours of empty operation, if everything is normal, a load test can be carried out. When conducting the load test, the feeding should be even to prevent excessive feeding and blockage at the bottom, which may cause a "stalled" accident.

1.The driving power is low. It adopts inflow feeding, induced discharging and a dense arrangement of large-capacity buckets. There is almost no material return or digging phenomenon when the materials are being lifted, so the ineffective power is minimal. 

2. It has a wide lifting range. This type of elevator has few requirements for the types and characteristics of materials. It can not only lift ordinary powdery and small granular materials but also lift materials with high abrasiveness. It has good sealing performance and causes less environmental pollution. 

3. It has good operational reliability. Advanced design principles and processing methods ensure the reliability of the whole machine's operation. The trouble-free running time exceeds 20,000 hours. It can achieve a high lifting height. The elevator runs smoothly, so it can reach a relatively high lifting height. 

4. It has a long service life. The feeding of the elevator adopts the inflow method and there is no need to use buckets to dig materials. There are few phenomena of extrusion and collision among materials. During the design of this machine, it is ensured that there is little spillage of materials during feeding and discharging, which reduces mechanical wear.