Fault Phenomenon: Genie IWP-25S vertical mast aerial work platform lifting is stuck, mast guide rail visibly bent.

Troubleshooting Process:
– Checked impact: previous collision.
– Checked load: severe off-center loading.
– Checked material: material fatigued.
– Checked installation: improper installation.

Root Cause: The mast guide rail was bent due to lateral impact or off-center loading.

Required Parts: Mast guide rail assembly replacement.