Fault Phenomenon: Zowell very narrow aisle forklift when traveling on the guide rail, the guide rollers wear severely, travel is unstable, risk of derailment.

Troubleshooting Process:
– Checked guide roller clearance: excessive clearance.
– Checked guide rail straightness: rail deformed.
– Checked guide roller material: material too soft.
– Checked frame verticality: frame tilted.

Root Cause: Loose guide roller adjustment bolts cause excessive clearance, or guide rail deformation.

Required Parts: Guide roller assembly and adjustment.