#$%^&*AU2014200790A120140828.pdf#####- 11 ABSTRACT A tool comprises a wheeled chassis; a shaft housing pivotally mounted to the wheeled chassis; a drive shaft powered by a motor and axially mounted in the shaft housing; and 5 an implement powered by the drive shaft.1/4 c'J ol CDj 01) 01 I C J C J 00 CJ 00 0 0r