The vertical tool post ram of vertical lathe machine adopts hydraulically balanced. The balance force is achieved by adjusting the pressure of the hydraulic system oil, and the adjustment method refers to the description of the hydraulic system.
After long-term use, if there is oil leakage, screw A of vertical lathe machine can be tightened to adjust the fit between the seal ring and the piston, until there is no oil leakage and the tool holder handle is light. The tightening of the screws of vertical lathe machine should be even.