First lower the ram of the press brake to the bottom, remove the screw lifting the oil cylinder, raise the oil cylinder piston to the top point and shut down the machine.
Then use a forklift to support the bottom of the oil cylinder, remove the connecting oil pipe and screw of the oil cylinder, remove the oil cylinder with a forklift and put it on the ground.
Remove the upper worm gear box first, unscrew the large nut of the oil cylinder, and knock out the piston with a sledgehammer（ Pay attention to safety when loading and unloading oil cylinder, and it is best to ask a professionals to operate it)
