... patent technology, including double pumps and double circuits, turning priority and unloading hydraulic pressure system, is efficient and energy-saving with better power performance ... , side dumping, Cummins or Cat engine, ZF transmission, Joystick, Air-conditioner, Centralized lubrication system. Liteng loaders with Cat or Cummins engine, ZF transmission, Joystick and centralized lubricatin system.