Fault Phenomenon: SANY SAP90C paver pressing the auger start button, the auger does not move, instrument reports fault.

Troubleshooting Process:
– Checked motor: auger hydraulic motor seized.
– Checked shear pin: auger drive safety shear pin broken.
– Checked solenoid valve: control valve spool stuck.
– Checked material: material bridged and seized the auger.

Root Cause: The mechanical safety shear pin on the auger shaft broke due to overload, preventing power transmission to the auger blades.

Required Parts: Replace auger safety shear pin.