117 Maintenance Section Fuel System Primary Filter (Water Separator) Element - Replace i01556387 Fuel System Primary Filter (Water Separator) Element - Replace SMCS Code: 1260-510; 1263-510-FQ S/N: 5SK1990-Up S/N: 8TK3231-Up NOTICE Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, test- ing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before open- ing any compartment or disassembling any compo- nent containing fluids. g00284523 Illustration 190 2. Open drain valve (1) on the bottom of water separator bowl (3). Allow the water and the fuel to drain into a suitable container.
Refer to Special Publication, NENG2500, “Caterpillar Tools and Shop Products Guide” for tools and supplies suitable to collect and contain fluids on Caterpillar products. 3. Support the water separator element and rotate the retaining ring (2) counterclockwise. Remove the retaining ring (2). 4. Remove the water separator element from the mounting base. Dispose of all fluids according to local regulations and mandates. 5. Remove water separator bowl (3) from the filter element. Clean the water separator bowl and the O-ring groove. NOTICE Do not fill fuel filters with fuel before installing them. Contaminated fuel will cause accelerated wear to fuel system parts.
Fuel system should be primed prior to starting the engine. Note: The water separator bowl is reusable. Do not discard the water separator bowl. 6. Inspect the O-ring seal on the water separator bowl. Replace the O-ring seal, if necessary. 7. Lubricate the O-ring seal with clean diesel fuel or with engine oil. Place the O-ring seal in the water separator bowl. 8. Install water separator bowl (3) onto the new filter element by hand until the filter element is snug. Do not use tools to tighten the filter element. 9. Install the new filter element. Rotate retaining ring (2) clockwise in order to fasten the filter to the mounting base.
Continue to turn the retaining ring until an audible click is heard. If a click is not heard, the retaining ring has not been rotated far enough and the filter element is not in the locked position. g00729143 Illustration 189 1. Open the engine access door on the right side of the machine. 10. Close drain valve (1). Note: The water separator element is under suction during normal engine operation. Tighten the drain valve securely in order to prevent air leakage into the fuel system.