How to fix a boom that cannot retract on Zoomlion RT60 Construction Equipment?
- JJessica ReynoldsSep 5, 2025
If the boom on your Zoomlion Construction Equipment cannot retract, it could be due to a defective balance valve, a defective electrical system, internal leaks in the main valve, a defective pilot control valve, or defective retraction rope and fittings. Repair the balance valve, electrical system, main valve, or pilot control valve solenoid coil as needed. Examine the retraction rope and fittings.








