Fault Phenomenon: Ruthmann T230 telescopic boom aerial work platform transmission oil temperature high alarm.

Troubleshooting Process:
– Checked cooler: cooler clogged.
– Checked oil level: level too high or too low.
– Checked clutch: clutch slipping.
– Checked oil quality: oil deteriorated.

Root Cause: The transmission cooler is clogged, causing poor heat dissipation.

Required Parts: Transmission cooler cleaning.