... gradienter, hydraulic system overflow valve, balance valve. 2 Torque limiterDetecting function: Detect the angle of the boom automatically. ... (undercarriage) Equipments and Structure1 Drives form: 4*42 Torque converter: single-single, two-phase, four components (twin turbo) ... 3 Torque converter type: Electric shift, planetary strucure gear - box4 Transmission ...