Fault Phenomenon: Dynapac F300W paver burner flame shape is asymmetric, heating efficiency low.

Troubleshooting Process:
– Checked nozzle: nozzle hole worn larger or deformed.
– Checked atomization: poor atomization.
– Checked pressure: gas supply pressure normal.
– Checked cleanliness: nozzle carbonized.

Root Cause: The burner nozzle orifice is deformed due to long-term high-temperature use and wear, causing poor fuel atomization and incomplete combustion.

Required Parts: Replace burner nozzle.