3.8.2. Fuel filter This fuel filter has two functions not only oil filtering but also water separating. 1 Before entering the suction chamber of the 3 injection pump, the fuel is cleaned in a 4 5 strainer of fuel feed pump and a fuel filter. Drain water in cartridge with loosening the 2 cock under filter manually (6) from time to time. 6 EA2O4009 The fuel filter should be replaced at every 1,200 hours. 3.8.3. Fuel requirements DAEWOO marine diesel engines was designed to use Number 2-D diesel fuel or equivalent that meets specification DIN 51601-DK. For maximum fuel economy, Number 2-D fuel whenever possible. When temperatures are below -7 C(20 ), use Number 1-D fuel.
If Number 1-D fuel is not available, the mixture of one kerosene to two gallons of Number 2-D fuel can be used. Once kerosene has been added, the engine should be run for several minutes to mix the fuel. 3.8.4. How to select fuel oil Fuel quality is an important factor in obtaining satisfactory engine performance, long engine life, and acceptable exhaust emission levels. DAEWOO engines are designed to operate on most diesel fuels marketed today. In general, fuels meeting the properties of ASTM Designation D975 (grades 1-D and 2-D) have provided satisfactory performance.
The ASTM 975 specification, however, does not in itself adequately define the fuel characteristics needed for assurance of fuel quality. The properties listed in the fuel oil selection chart below have provided optimum engine performance. Grade 2-D fuel is normally available for generator service. Grade 1-D fuel should not be used in pleasure craft engines, except in an emergency. - 19 -