Safety Operation Hydraulic Construction Crane Boom For Tower Crane

When an unexpected accident occurs, and the high-pressure hose or oil pipe in the boom telescopic cylinder circuit bursts or is cut off, the balance valve in the hydraulic circuit will work, locking the working oil from the lower chamber of the cylinder, so that the boom will retract by itself, thereby ensuring the safety of the operation. If the boom cannot retract, the oil level in the tank should be checked first. When all mechanisms are in working state and the telescopic cylinder is fully extended, if the oil level is insufficient, it will affect the operation of the hydraulic pump and make the boom unable to retract. At this time, the luffing cylinder can be retracted.