Replace Primary Fuel Filter (Water Separator)-540G-III, 548G-III, 640G-III, 648G-III

IMPORTANT: Position bottom of drain hose outside engine frame.

1. Place container under drain hose.

2. Drain all fuel from filter. Dispose of waste properly.

3. Turn retaining ring (A) counterclockwise to remove filter (B).

4. Turn sediment bowl (C) counterclockwise to remove from filter assembly and clean.

5. Remove hand primer from fuel filter base. Disassemble hand primer assembly (D-I) and clean.


A-Retaining Ring
B-Filter Element
C-Sediment Bowl
D-Retaining Ring
E-Pump Knob
F-Spring Cover
G-Spring Seat
H-Spring
I-Diaphragm

T130013B
T112134

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6. Remove fuel inlet line from fitting (A) and remove plug (C).

7. Flush any debris from filter base (B).

8. Install fuel inlet plug and fuel inlet line.

9. Assemble primer assembly and install onto fuel filter base.

10. Install new filter. Follow instructions on filter.

11. Install sediment bowl.

12. Bleed fuel system. (See Bleeding Fuel System in Maintenance chapter.)

T8387AD


A-Fuel Inlet Line Fitting
B-Filter Base
C-Plug

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