FLANGE AS 6E4763 - Caterpillar

Do not fill the secondary fuel filter with fuel before installing. The fuel would 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, "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: Before you replace the secondary fuel filters, the primary fuel filter must be replaced. Refer to the Operation and Maintenance Manual, "Fuel System Primary Filter - Clean/Inspect/Replace".
Prepare the machine for maintenance. Refer to Operation and Maintenance Manual, "Prepare the Machine for Maintenance".
Shut off the engine.
Raise the hood. Refer to Operation and Maintenance Manual, "Hood Control".
Illustration 1 g03726622
Use a strap wrench and remove secondary fuel filters (1). Discard the secondary fuel filters properly.
Clean the fuel filter bases.
Coat the seals on the new secondary fuel filters with clean diesel fuel prior to installation.
Install the new secondary fuel filters by hand. Do not use a tool for installation of the secondary fuel filters. When the new filter base gasket contacts the fuel filter base, tighten the secondary fuel filter by an additional 270°. Note: The secondary fuel filter has indicator marks at every 90 degrees.
Prime the fuel system. Refer to the Operation and Maintenance Manual, "Fuel System - Prime".
Start the engine and check for leaks.
Lower the hood.