L68A1 Mast Section Causes and solutions to abnormal noise
1. Fault cause: poor lubrication of large gear ring.
Solution: refuel smoothly.
http://www.towercranesupply.com/product/l68a1-mast-section-for-tower-crane-masts
2. Fault cause: the gap between the big gear ring and the small gear is improper.
Solution: adjust the gap.
3. Fault cause: the rotating body or isolation block is damaged.
Solution: replace the damaged parts.
4. Fault cause: pitting and peeling of raceway surface.
Solution: rest the raceway.
5. Cause of failure: the pre tightening force of high-strength bolt is inconsistent, with great difference.
Solution: adjust the preload.
http://www.towercranesupply.com/product/l68a1-mast-section-for-tower-crane-masts
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