D3-Series Compact Track Loaders (CTL), Multi-Terrain Loaders (MTL), and Skid Steer Loaders (SSL) Caterpillar

Fuel System Primary Filter (Water Separator) Element - Replace

Usage:

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NOTICE

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, PERJ1017, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat^® products. Dispose of all fluids according to local regulations and mandates.

Note: This unit has a dual purpose. The element serves as a water separator and a fuel filter.

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Illustration 1	g06405741
(1) Fuel Filter (2) Drain Valve (3) Drain Hose (4) Water-In-Fuel Sensor Plug (5) Water Bowl

Open the engine access door. Refer to Operation and Maintenance Manual, "Access Doors and Covers".
Disconnect the water-in-fuel sensor plug (4) from the bottom of the water bowl (5).
Insert the drain hose (3) into a suitable container. Open the drain valve (2) on the bottom of the fuel filter (1) and allow the water and fuel to drain into a suitable container.
Note: One half to one full turn will fully open the valve (2).
Close the drain valve (2) by hand. Do not tighten the drain valve (2) with a tool. Damage to the valve or to the seals may occur.
Rotate the water bowl (5) counterclockwise to separate it from the fuel filter (1).
Rotate the fuel filter (1) counterclockwise approximately three-quarters of a turn to remove.
Clean the mounting base for the fuel filter.
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Illustration 2 g06311236
Lubricate the seal with clean fuel. Install the new fuel filter and housing onto the mounting base. Rotate clockwise approximately three-quarters of a turn to fasten the fuel filter to the mounting base. Hand tighten until an audible "click" is heard indicating the housing is fully seated to the mounting base.
Note: Do not prefill the filter with fuel. Contamination of the fuel system will occur and damage to the injectors may occur.
Reinstall the water bowl (5) onto the new fuel filter (1) by rotating it clockwise. Do not tighten the water bowl with a tool.
Reconnect the water-in-fuel sensor plug (4).
Prime the fuel system (Key ON only) to fill the fuel filter with fuel. Refer to Operation and Maintenance Manual, "Fuel System Priming Pump - Operate".
Close the engine access door.
Dispose of the water, sediment, and fuel filter according to local regulations.