Requirements for no-load and load test runs of cone crushers after maintenance

Cone crushers require a no-load and a load test run after maintenance to ensure that they are operating according to their specifications. Here are the requirements for the no-load and load test runs and a table to summarize the process:

**No-load test run requirements:**

1. The belt conveyor that feeds the crusher should be started sequentially before starting the crusher.

2. After starting the crusher, run it at idle for 2-3 minutes to ensure that all aspects of the crusher operate smoothly and meet the specifications.

3. Observe the motor current and voltage during the idle run to ensure that the readings are stable.

**Load test run requirements:**

1. The cone crusher must be running at its maximum capacity during the load test run.

2. Stop the feeding belt conveyor and pour a specified amount of material into the crusher until the crusher is full.

3. Gradually increase the discharge opening until the maximum size is reached and the crusher maintains a stable running state.

4. Observe the vibration and noise of the crusher and inspect for any abnormalities.

5. Observe the motor current and voltage during the load test run to ensure that the readings are stable.

**Table of requirements:**

| Test | Requirement |

|------|------------|

| No-load test run | - Start the feeding conveyor sequentially before starting the crusher. - Run the crusher idle for 2-3 minutes. - Observe the motor current and voltage. |

| Load test run | - Run the crusher at maximum capacity. - Fill the crusher with a specified amount of material. - Gradually increase the discharge opening until the maximum size is reached. - Observe the vibration and noise of the crusher. - Observe the motor current and voltage. |

Note:

- The requirements presented in this table are for reference and based on general industry standards and practices. The specific requirements may vary depending on the manufacturer and model of the cone crusher.

- The test run process should follow the guidelines and instructions specified in the manufacturer's manual for the equipment.

- It is also important to ensure that all safety measures are taken before, during, and after the test runs to prevent accidents or damage to the equipment or personnel.