Tronair’s mobile-driven hydraulic power unit provides a source of clean, pressurized hydraulic fluid for performing required aircraft maintenance. A two-cylinder, Tier II gasoline engine drives a pressure compensated piston pump. A bypass (dump) valve allows starting and stopping of the unit under a no-load, safe condition. The unit may use the aircraft or onboard HPU reservoir and is equipped with cooling for continuous operation, electric start engine and a heavy-duty towable frame. For more information visit www.tronair.com.