2005.10.15 / benny80@tlen.pl Model of Grader, designed by Caterpilar. Electric&pneumatic steering, front and rear suspension. Specification: - 2 electric motor rear wheels movemend; - 1 electric motor front wheels steering; Pneumatic control: - 1 tube front plow lift; - 2 tubes main plow lift; - 2 tubes main plow rotate; - 1 tube rear harrow lift;