Caterpillar Excavator 320CS

NOTICE: Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

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, 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.

Use Tool (A) to remove fuel filter (3) from fuel filter base (2).

Note: It is not necessary to remove the fuel filter in order to remove the fuel filter base.

Remove banjo bolts (1) and copper washers in order to disconnect the fuel lines (4) from the fuel filter base (2).

Note: Cap all openings or plug all openings immediately in order to prevent contamination of the fuel system.

Remove two bolts (5) and the washers that secure the fuel filter base (2) to the air inlet manifold. Remove the fuel filter base (2) from the fuel filter bracket.

NOTICE: Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

Place the fuel return line (10) in position on the engine. Connect fitting (9) of the fuel return line to the fuel injection pump.

Install the washer and bolt (8) through the clamp in order to secure the fuel return line to the inlet manifold.

Install the fuel return line (10) to the fuel injection nozzles. Secure the fuel return line to the fuel injection nozzle with acorn nuts (7).

Place the fuel injection lines (4) on the engine.

Connect the fuel injection lines (4) to the fuel injection pump (6).

Connect the fuel injection lines (4) to the fuel injection nozzles (5). Note: The fuel lines (4) should be connected at the fuel injection nozzle (5) and at the fuel injection pump (6) before tightening the nuts for the fuel injection line.

Tighten the nuts for the fuel injection line to a torque of 25 N·m (18 lb ft).

Install the clamps (2), the washers, and the bolts (1), which secure the fuel lines to the inlet manifold (3).

Start by removing the fuel filter base. Refer to Disassembly and Assembly, 'Fuel Filter Base - Remove and Install'.

NOTICE: Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

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, 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.

Remove the bolts (1), the washers, and the clamps (2), which secure the fuel lines to the inlet manifold (3).

Disconnect the fuel injection lines (4) from the fuel injection nozzles (5). Note: Cap all openings or plug all openings immediately in order to prevent contamination of the fuel system.

Disconnect the end of the fuel injection lines (4) from the fuel injection pump (6). Note: Cap all openings or plug all openings immediately in order to prevent contamination of the fuel system.

Remove the fuel injection lines (4) from the engine.

Loosen the acorn nuts (7), which secure the fuel return line to the fuel injection nozzles.

NOTICE: Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

Fuel filter base (2) placed in position on the fuel filter bracket

Washers and two bolts (5) installed to secure the fuel filter base to the fuel filter bracket

Banjo bolts (1) installed and new copper washers used to connect the fuel lines (4) to the fuel filter base (2)

Fuel filter (3) installed to the fuel filter base (2) if it was removed

Fuel filter tightened by hand according to the instructions shown on the fuel filter

Sign off on the fuel filter base installation