Travel Motor Assembly Final Drive Gearbox 92480040 90603140 For Komatsu PC4000-6 Excavator Spare Parts Product Overview PC4000-6 is a large mining face shovel excavator. The travel drive assembly (Final Drive) consists of a high-pressure travel hydraulic motor integrated with a multi-stage planetary gear reducer. It is mounted at the end of the track frame to drive the sprocket and track. Adopting heavy-duty multi-stage planetary reduction structure, it amplifies motor output