ELBOW 4N0826 - Caterpillar

Personal injury or death may result from failure to adhere to the following procedures.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.
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.
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 Dealer Service Tool Catalog" guide for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Turn the start switch to the OFF position or disconnect the battery (starting motor) when maintenance is performed on a fuel filter.
Shut off the fuel supply.
Illustration 1 g01274118
(1) filter body
(2) bowl
(3) drain valve Note: Refer to this Operation and Maintenance Manual, "General Hazard Information" that pertains to containing fluid spillage.
Turn drain valve (3) counterclockwise in order to open. The drain valve is located on the bottom of the water separator.
Drain the water and sediment into a suitable container. Dispose of the drained fluids and used filters according to local regulations.
Close the drain valve.
Hold the bottom of the filter while you loosen the bowl. Remove the bowl.
Turn the filter counterclockwise in order to loosen the filter. If the filter will not turn, use a strap wrench to loosen the filter.
Remove the filter and discard the filter. Clean the bottom of the filter mounting base. Make sure that all of the old filter seal is removed from the bottom groove of the opening in the base.
Clean the water separator bowl and clean the groove for the seal. Inspect the seal. If the seal is worn or damaged, replace the seal.
Lubricate the seal with clean diesel fuel or lubricate the seal with clean motor oil. Place the seal in the groove on the water separator bowl.
Install the water separator bowl onto the new fuel filter by hand. Tighten the bowl assembly to 15 15 N m (11 lb ft).
Apply clean diesel fuel to the seal of the new filter.
Install the new filter onto the base. Tighten the filter by hand until the seal contacts the filter base. Additionally tighten the filter by 1/3 to 1/2 rotation.
Open the fuel shutoff valve.
Reconnect the battery, if necessary.
Purge the air from the fuel system. See this Operation and Maintenance Manual, "Fuel System - Prime" for further instructions.
Stop the engine and check for leaks. Note: The secondary fuel filter should also be replaced at this time. See this Operation and Maintenance Manual, "Fuel System Secondary Filter - Replace" for further information.