Optional Fuel Water Separator

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Back flush optional fuel water separator (A) whenever bowl is half full of water or when diagnostic trouble code appears. If, after flushing, trouble code is still displayed, wash filter element. See Optional Fuel Water Separator Filter Element in this section of this Operator’s Manual. If code persists, change primary and secondary fuel filters.

Filter element in water separator can be back flushed up to five times before being cleaned. See Optional Fuel Water Separator Filter Element in this section of this Operator’s Manual.

1. Shut off engine.

2. 
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   Close fuel shut-off valve (B).

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3. 
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   Open bleed screw (D) on top of water separator cover. Allow water and dirt to be released from filter element and settle in bottom of bowl.

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4. Drain fuel into appropriate container and dispose of in accordance with local laws and ordinances.

   As fuel, water, and dirt is drained from bowl in step 4, more water and dirt may be flushed from filter element and collect in bottom of bowl.

   Push IN on drain valve (C) and turn COUNTERCLOCKWISE to drain water and dirt from bowl.

5. Close drain valve and allow water and dirt to settle again.

6. When all dirt and water have been drained, proceed to step 7.

7. Close bleed screw and open fuel shut-off valve.

8. Start and run engine at high idle for at least 2 minutes. If engine will not start or starts and dies, see Fuel Filters in Service - Change section of this Operator’s Manual.