Fault Phenomenon: Bomag BF800C paver screed sticks when lifting, piston rod visibly bent.

Troubleshooting Process:
– Checked load: screed stuck by material, forced lifting.
– Checked synchronization: uneven lifting between sides causing off-center load.
– Checked material: insufficient piston rod strength.
– Checked guidance: cylinder mounting bracket deformed.

Root Cause: The screed was stuck on one side, or the two sides lifted unevenly, causing the cylinder to bear a side load and bend.

Required Parts: Screed lift cylinder assembly (straighten or replace).