The precautions when using a jaw crusher mainly include the following:

1. Pre startup inspection: Ensure that all components are securely connected, the drive belt is moderately loose, well lubricated, and there are no foreign objects in the crushing chamber.

2. Uniform feeding: Avoid excessive or insufficient materials, maintain uniform and continuous feeding, and prevent equipment blockage or excessive wear.

3. Control material particle size: Excessive material may cause damage to equipment, and the feeding particle size should be strictly controlled according to requirements.

4. Monitor the operating status: Pay attention to the sound, vibration, temperature, etc. of the equipment during operation. If there are any abnormalities, stop the machine in time for inspection.

5. Regular maintenance: including regular replacement of vulnerable parts, inspection of lubrication system, tightening of bolts, etc.

6. It is strictly prohibited to start with a load: the equipment must be started in an unloaded state. Before stopping, the feeding should be stopped first, and the machine should be stopped after the material is emptied.

7. Safe operation: Operators should receive training, strictly follow operating procedures, and prevent safety accidents from occurring.

8. Keep the working environment clean: Avoid dust, debris, etc. from entering the equipment and affecting its normal operation.