1. Common faults of relays:

Maintenance method: There is a high possibility of steam leakage sound in the gas leakage of this relay. It is necessary to carefully listen to the sound source and search for the steam leakage point by hand, which makes it easier to find the gas leakage relay.

2. Common faults of magnetic induction switch in urea bagging machine for vehicles:

Maintenance method: This can adjust the cylinder and one-way throttle valve, thereby reducing the total gas flow rate and decreasing the operating speed of the cylinder until the magnetic induction switch can detect that the data signal is dominant.

3. Common faults of limit switch for automotive urea bagging machine:

Maintenance method: This can connect the melting knife limit switch to power switches of the same model and specification, thereby improving stability.