HOSE 5P1270 - 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.
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.
Note: After cleaning or replacing the element, it may be necessary to prime the fuel system before the engine will start. See this Operation and Maintenance Manual, "Fuel System - Prime" topic (Maintenance Section).Primary Filter
Stop the engine. Turn the start switch to the "OFF" position. Disconnect the battery.
Shut off the fuel tank supply valve to the engine.
If the primary fuel filter is equipped with a drain valve, open the drain valve in order to drain any fuel from the filter case. Close the drain valve.
Use a suitable container to catch any fuel that might spill. Clean up any spilled fuel immediately.
Note: Illustration 1 shows a Caterpillar Primary Fuel Filter. If the engine has a different primary filter, service the filter according to the instructions that are provided by the OEM of the filter.
Illustration 1 g00799801
(1) Bolt
(2) O-ring seal
(3) Case
(4) Element
Remove bolt (1), O-ring seal (2), case (3) and element (4).
Wash the element and the case in clean, nonflammable solvent. Inspect the element for good condition. Inspect the O-ring seal for damage and deterioration. Obtain new parts, if necessary.
Do not fill the fuel filters with fuel before installing them. The fuel would not be filtered and could be contaminated. Contaminated fuel will cause accelerated wear to fuel system parts.
Install the element, the case, the O-ring seal, and the bolt. Tighten the bolt to 25 5 N m (18 4 lb ft). Water Separator
Service the water separator according to the instructions that are provided by the OEM of the water separator.