Maintain wheeled vehicles, their associated trailers and material handling equipment systems. Use of applicable references, inspecting, servicing, maintaining, repairing, replacement, adjusting and testing of wheeled vehicles and material handling equipment systems, subsystems and components such as: power plant/packs, compression ignition engines and engine fuel systems, air induction and exhaust systems and cooling systems. Vehicle chassis and power train components including, frame cross members, clutches assemblies, transmissions, transfers, final drives, propeller shaft assemblies, brake systems and steering systems, suspensions systems, fifth wheel assemblies, wheeled vehicle crane, hoist and winch assemblies, and hydraulic systems. Automotive electrical systems including wiring harness, starting, and charging systems. Perform wheeled vehicle recovery operations.