1.013.0004 / 1.013.9106 is a fuel coarse filter / oil-water separator for Kaishan drilling rigs. Its function is to perform the primary fuel filtration stage, separating water and removing larger particulate contaminants from diesel before the fuel reaches the engine's high-pressure pump and injectors. This protects precision fuel system components from corrosion and abrasive wear in the demanding underground mining environment where Kaishan drilling rigs operate.
