Four-wheel oil-cooled disc brakes at the HD785-7 rigid-framed haul truck's four wheel stations allow retarding force to be applied to all four wheels, increasing the effective retarder capacity. Retarding force is controlled on the front and rear wheels independently, and ground speed for descending grades can be set cruise-control style with Komatsu's Auto-Retard Speed Control system. The truck is powered by a Tier-2 Komatsu SAA12V140E-3 engine. Estimated list price (without tires): $1,008,454.
Staff | September 28, 2010