Reliable AC Traction motor and AC Pump motor which are brushless and maintenance free. Reliable AC Traction controller and AC Pump controller self-protecting and maintenance free. Intertactive communication multifunctional LED meter with friendly interface, display mass information, password handing and maintenance free. Standard CAN BUS interface for simple and reliable communication. Travel speed and lifting speed closed loop control. Powerful security, self-braking on ramp. New technology of dynamic signal load sensing in hydraulic system. Travel speed normal/cutback choice function. Electromagnetic compatibility reaches international standards.