Drain Water and Sediment from Fuel System—755C

NOTE: Drain the fuel water separator before draining the final fuel filter.

When draining water and sediment from the fuel system:

1. Drain water and sediment from the fuel water separator. (See Drain Fuel Water Separator in this procedure.)

2. Drain water and sediment from the final fuel filter. (See Drain Final Fuel Filter in this procedure.)

3. Drain water and sediment from the fuel tank, if necessary. (See Drain Fuel Tank in Maintenance chapter.)

4. Bleed the fuel system. (See Bleed Fuel System in Maintenance chapter.)

Drain Fuel Water Separator

1. IMPORTANT: If fuel water separator contains a large amount of water or sediment, replace it. (See Replace Fuel Filters—755C in Maintenance—Every 500 Hours chapter.)

   NOTE: Drain waste into a container. Dispose of waste properly.

   
   T139017B-UN-05MAR01

   A - Bleed Screw

   B - Drain Knob

   Put a suitable container under the fuel water separator.

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2. Loosen the bleed screw (A) 2 full turns. Loosen the drain knob (B). Drain liquid for several seconds, until clean fuel emerges.

3. Tighten bleed screw and drain knob.

4. Drain the final fuel filter. (See Drain Final Fuel Filter in this procedure.) Drain sediment from the fuel tank, if appropriate. Bleed the fuel system. (See Maintenance chapter.)

Drain Final Fuel Filter

1. IMPORTANT: If final fuel filter contains a large amount of water or sediment, replace it. (See Replace Fuel Filters—755C in Maintenance—Every 500 Hours chapter.)

   NOTE: Drain waste into a container. Dispose of waste properly.

   
   T139505B-UN-06MAR01

   
   T139019B-UN-05MAR01

   A - Bleed Screw

   B - Drain Screw

   Drain or replace the fuel water separator.

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2. Put a suitable container under the final fuel filter.

3. Loosen the bleed screw (A) 2 full turns. Loosen the drain screw (B). Drain liquid for several seconds, until clean fuel emerges.

4. Tighten bleed screw and drain screw.

5. Drain sediment from the fuel tank, if appropriate. Bleed the fuel system. (See Maintenance chapter.)