Fault Phenomenon: Genie GS-3390 RT scissor lift aerial work platform when not raised, the instrument alarms “Pothole Protection Not Deployed,” restricting travel.

Troubleshooting Process:
– Checked pothole protection plates: plates deployed.
– Checked limit switches: switch position offset or damaged.
– Checked wiring: wiring short circuit.
– Checked mechanical linkage: linkage deformed.

Root Cause: The pothole protection plate limit switch is misaligned, unable to detect the deployed state.

Required Parts: Pothole protection limit switch.