Fault Phenomenon: Ruthmann T160 telescopic boom aerial work platform during operation, the water temperature gauge enters the red zone, engine automatically limits speed.

Troubleshooting Process:
– Checked radiator: radiator exterior clogged.
– Checked fan belt: belt slipping or broken.
– Checked thermostat: thermostat cannot open.
– Checked water pump: water pump impeller corroded.

Root Cause: The radiator exterior is severely clogged with dust and debris, causing ineffective air cooling.

Required Parts: Radiator cleaning or replacement.