The H Series wheel tractor-scrapers include the 621H single-engine ... The system automatically sets the cushion hitch, bowl height, apron, ejector and elevator. Load Assist is available on ...

The launch of the Cat 631K and 637K wheel tractor-scrapers changes that ... Advanced Cushion Hitch, which uses new software to dampen end-of-stroke movement of the load cylinder "Advanced Cushion ...