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8.9 MAINTENANCE EVERY 500 HOURS
Perform this maintenance in tandem with maintenance every 30/50/250 hours.
[1] REPLACEMENT FUEL FILTER CARTRIDGE
• Keep from heat and flame, including cigarettes, when replacing the fuel filter element.
• All the parts will be at elevated temperatures immediately after engine operation, which urges
you not to replace the fuel filter element. Always perform replacement with the engine cold to
touch.
1. Place the machine on a level surface.
2. See “Operation 1.9 Engine Hood” and open the engine hood.
3. Raise the lever (2) of the head (4) section to horizontal position
(close) to shut off the fuel.
4. Turn the retainer ring (3) of the head (4) section
counterclockwise to loosen, then remove the pot (1) from the
head (4) section.
5. Drain the fuel and water out of the pot (1).
6. Clean the pot (1) and element with diesel, and spray the
compressed air (0.20 to 0.29 MPa {2 to 3 kg/cm
2
}) inside to
scrape off the dusts from the surface.
7. Set the pot (1) to the head (4) section, then turn the retainer ring
(3) clockwise to tighten.
8. Lower the fuel lever (2) of the head (4) section down to the
vertical position (open) to open the fuel circuit.
9. See “Operation 1.9 Engine Hood” and close the engine hood.
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