Komatsu PC78US-8 compact excavator has a 55-horsepower, Tier 4-Interim diesel. Operating weight is 16,240 pounds with a maximum digging depth of 15 feet 5 inches. Bucket breakout force is 13,780 pounds; arm crowd force is 7,760 pounds; and digging height is 24 feet 11 inches. Komatsu HydrauMind hydraulic system uses an engine-speed sensing system to maintain engine speed regardless of load condition. Standard auxiliary hydraulics can be adjusted from the opera- tor’s seat from 5.3 to 33 gpm.
October 21, 2010