Fault Phenomenon: Flexi very narrow aisle forklift when operating the telescopic forks, the left and right forks move at different speeds, causing the load to tilt.

Troubleshooting Process:
– Checked synchronization chains: chains have uneven tension.
– Checked hydraulic motors: motor internal leakage.
– Checked guide rails: debris stuck in rails.
– Checked gearbox: gears damaged.

Root Cause: Improper tension adjustment of the telescopic fork synchronization chains.

Required Parts: Synchronization chains and adjustment tools.