Patent ID: 6766601
Filing Date: 2004-07-27
Classification: E02F

Abstract:
A trenching machine comprising:a wheeled frame, an engine mounted on the frame comprising a first motor means and a second motor means, wherein, the first motor means drives a digging chain carried on a chain guide extending from the machine, the chain guide being pivotally mounted coaxially with a drive chain drive sprocket, and wherein the second motor means drives at least one of the machine wheels for moving the machine along the ground, wherein the second motor means is releasably engaged to at least one of the machine wheels and drives at least two substantially coaxial frame wheels that are independently rotatable when disengaged from the second motor means, and rotated in unison when engaged with the second motor means, means for pivotally moving the chain guide relative to the frame, and, locking means to lock the chain guide in a desired pivotal position.