D6R Track-Type Tractor Fuel System Secondary Filter - Replace Caterpillar

Fuel System Secondary Filter - Replace

------ WARNING! ------

Personal injury can result from air pressure.

Personal injury can result without following proper procedure. When using pressure air, wear a protective face shield and protective clothing.

Maximum air pressure at the nozzle must be less than 205 kPa (30 psi) for cleaning purposes.


------ WARNING! ------

Personal injury can result when using cleaner solvents.

To help prevent personal injury, follow the instructions and warnings on the cleaner solvent container before using.


------ WARNING! ------

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.



Do not fill fuel filters with fuel before installing them. Contaminated fuel will cause accelerated wear to fuel system parts.

Illustration 1g00103879

Before you replace the secondary fuel filter element, replace the primary fuel filter element.

The secondary fuel filter is behind the access door on the right side of the machine.

  1. Shut off the fuel supply. The fuel shutoff valve is under the fuel tank on the rear of the machine.

  1. Remove the filter element. Discard the filter element properly.

  1. Clean the filter housing base. Make sure that all of the old seal is removed.

  1. Coat the seal of the new filter element with clean diesel fuel.

  1. Install the new filter element by hand. When the seal contacts the base, tighten the filter element for an additional 3/4 turn.

    Rotation index marks are positioned on the filter element at 90 degree intervals. Use these rotation index marks as a guide when you tighten the filter.

  1. Open the fuel shutoff valve.

  1. Prime the fuel system.