Fault Phenomenon: Dynapac F300W paver screed extension sticks during extension/retraction.

Troubleshooting Process:
– Checked guide rod: guide rod bent due to force.
– Checked wear pads: wear pads shattered and stuck.
– Checked operation: extension hit obstacle.
– Checked lubrication: lack of lubrication.

Root Cause: The screed extension, while in the extended position, suffered a lateral impact or encountered resistance from piled-up material, causing the guide rod to bend.

Required Parts: Straighten or replace extension guide rod.