LINES GP-FUEL FILTER 4447605 - Caterpillar

Personal injury or death can result from a fire.Fuel leaked or spilled onto hot surfaces or electrical components can cause a fire.Clean up all leaked or spilled fuel. Do not smoke while working on the fuel system.Turn the disconnect switch OFF or disconnect the battery when changing fuel filters.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
The primary fuel filter incorporates a fuel/water separator. The separator must be drained before operating the engine if water is visible in up to 1/2 of the transparent portion of the separator. If water is above this level the filter must be replaced. Engine damage may result from excessive water in the fuel system.
Illustration 1 g00689915
Typical ExamplePrimary fuel filter (1) is located above the engine flywheel housing.Note: Two types of arrangements exist for the primary fuel filter. On the first type of arrangement, a cap and a nut is located on top of the primary fuel filter. On the second type of arrangement, a fuel priming pump is located in place of the cap. Removal of the fuel priming pump is not necessary during the following installation procedure.
Park the machine on level ground. Fully retract and fully lower the boom. Move the transmission control to the NEUTRAL position and ensure that the parking brake is engaged. Shut off the engine.
Open the engine enclosure.
Clean the outside of the primary fuel filter.
Illustration 2 g00689917
Typical Example
Loosen valve (2) on the bottom of the bowl for the primary fuel filter and drain the fluid into a suitable container. Tighten the valve.
Remove nut (3) and cap (4) from the top of the primary fuel filter. Remove the plug by inserting a small screwdriver under the plug and lifting the plug from the filter housing. The plug is not a tight fit in the filter housing. Remove any sediment from the sediment chamber.
Reinstall the plug. Reinstall the cap and the nut on the primary fuel filter.
Illustration 3 g00689918
Typical Example
Unscrew ring (5). Remove element (6) for the primary fuel filter. Unscrew head (7) in order to remove bowl (8) .
Install the bowl and the head onto the new element. Hand tighten the head. Do not overtighten the head.Note: An O-ring is between the head and the element.
Clean the gasket sealing surface on the base assembly that is located on the engine.
Lubricate the seals on the replacement (filter) with clean diesel fuel.
Install the new filter element and hand tighten the ring. Do not overtighten the ring.
Purge the air from the fuel system. Refer to the Operation and Maintenance Manual, "Fuel System - Prime" for further instructions.Note: The secondary fuel filter should be changed when the primary fuel filter is