Fault Phenomenon: General manual stacker chain is severely rusted, lifting is jerky, operation difficult.

Troubleshooting Process:
– Checked environment: damp environment.
– Checked lubrication: long-term lack of lubrication.
– Checked material: poor anti-corrosion material.
– Checked wear: chain worn.

Root Cause: Long-term exposure to a damp environment and lack of maintenance caused the chain to rust.

Required Parts: Rust remover and lubricating grease, or chain replacement.