What can be done when the hydraulic platform is down?
The left and right sides are connected by wire rope, while the other side is synchronized.
You can't see your schematic diagram, theoretically do not use hydraulic lock, should balance valve, the frequent switch of hydraulic lock causes jitter and unstable. Shunt valve, speed regulating valve or pressure compensating valve is a common solution to solve synchronization problem. Synchronous diverters are expensive
Your reason is simple: the oil always goes to the small oil tank, causing the load to be light first, and the cylinder is out of sync. The solution in the economy is to buy a synchronous shunt valve for the oil supply of two cylinders. In the transfer valve A or B, one is solved