Hydraulic unit does not start
Verify that the hydraulic unit is properly connected to the main supply and that the hydraulic fluid level is correct.
Verify that the Emergency Stop Switch is not pressed.
Verify that the power of your generator (if used) is sufficient and that the section of cable is suitable for the length of it. (See chapter II-3).
As a good practice, it is always recommended perform the starting of a hydraulic device without pressure. Pay attention that if the working conditions are below 10˚C or cable length is very long, you should open the regulating pressure valve to start the pump.
