Fault Phenomenon: UpRight TB60 telescopic boom aerial work platform when the boom telescopes, there is a metallic rubbing sound, excessive clearance.

Troubleshooting Process:
– Checked wear pads: pads worn down.
– Checked lubrication: lack of lubrication.
– Checked boom walls: walls worn.
– Checked clearance: clearance exceeds limit.

Root Cause: The boom wear pads were not replaced after long-term wear, causing direct metal-to-metal friction.

Required Parts: Boom wear pad kit.