DIESEL FUEL OIL SYSTEM DRAWING FS 430 DESCRIPTION The fuel oil system consists of the supply, injection, and drain systems; the supply system includes the tank, built-in supply pump on the engine, built-in filter, hand fuel oil pump, and the necessary piping, fittings, thermometers and gauges as shown on FS 430. The fuel supply pump is driven from the governor drive, The service supply system consists of one 3500 gallon horizontal storage tank equipped with inspection manhole, gauge hole and gauge stick, fuel gauge mounted in plant, filling line, vent line, and supply and overflow line back to tank from each diesel engine. The fuel oil storage tank is located outside the power plant. The filtered fuel oil is supplied to the diesels by a positive displacement engine-mounted fuel pump. Leakage from injectors and pumps is drained to pipe trench drain. PRELIMINARY QPERATION Fuel oil service tank is filled from tank truck; prior to filling, check vent valve for proper operation and connections for tightness. In the event the fuel pump on engines ceases to function properly, the engine may be run on the hand-operated fuel pump by closing valve V-10 and opening valves V-1l and V-12, 3-6