This article explains how to replace the Doosan DA-30-5 truck water separation fuel filter

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1. Close the shut-off cock (1) in the fuel pipe and

position a container under the filter.

2. Open the drain tap (2) in the filter cover and let

the fluid run down into the container.

3. Unscrew the filter cover.

4. Unscrew the filter from the filter head.

5. Discard the old filter and use a new filter.

6. Lubricate the O-ring in the filter cover with engine oil.

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7. Screw the filter cover onto the new filter by hand. Make sure that the drain tap is fully closed.

8. Lubricate the O-ring on the filter with engine oil.

9. Fill the width of the filter with clean fuel.

10. Screw the filter into position until the O-ring rests against the filter head. Tighten the filter another 1/2-3/4 turn by

hand.

11. Open the shut-off cock and check the system for leaks.

12. Bleed the fuel system.

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