DRIVERS DO NOT ASSIST IN UNLOADING. BUYERS MUST HAVE ARRANGMENTS TO UNLOAD. These are VERY strong little units. Gas unit, EPA certified 13.5 HP Briggs Hydraulic Thumb. Max digging depth 1600mm (5.24 ft). Overall size of unit: 25509501350 mm (8.363.124.4). Operating weight: 2000 Lbs.