FILTER-COOLANT CONDITIONER 9N6123 - Caterpillar

Fuel leaked or spilled onto hot surfaces or electrical components can cause a fire. To help prevent possible injury, turn the start switch off when changing fuel filters or water separator elements. Clean up fuel spills immediately.
Stop the engine. Ensure that the engine will not start during this procedure.
Isolate the separator from the fuel supply.
Do not allow dirt to enter the fuel system. Thoroughly clean the area around a fuel system component that will be disconnected. Fit a suitable cover over disconnected fuel system component.
Use a suitable container to catch any fuel that might spill. Clean up any spilled fuel immediately.
Illustration 1 g01195037
(1) Handle
(2) Element
Turn handle (1) counterclockwise in order to loosen the lid. Remove the lid.
Remove element (2) and wash the element in clean, nonflammable solvent. Allow the element to dry. Inspect the element. Install a new element if the old element is damaged or deteriorated.
Clean the inside of the filter case. Allow the filter case to dry.
Inspect the O-ring seals. Obtain new seal rings if the old seal rings are damaged or deteriorated. Ensure that the sealing surfaces for the seals are clean. Install the seals.
Do not fill the fuel filters with fuel before installing the fuel filters. The fuel will not be filtered and could be contaminated. Contaminated fuel will cause accelerated wear to fuel system parts.
Place the element in the filter case. Slide the filter case over the mounting bolt.
Install the nut.
Open the fuel supply valve.
Prime the fuel system. See this Operation and Maintenance Manual, "Fuel System - Prime" topic.