Fuel Filter and Water Separator Service

Parent topic: Engine Fuel System

Primary Fuel Filter / Water Separator

Removal

  1. Turn the unit OFF and disconnect the negative battery terminal to ensure unit cannot be operated.

  2. Unscrew the filter bowl 1/4 turn. Drain the fuel into a suitable container.

  3. Remove the bowl and it and filter element. Drain the fuel from the filter bowl. Dispose of the drained fuel and filter according to local regulations.

  4. Clean the filter head.

Installation

  1. Lubricate the top inside edge of the filter bowl with clean engine oil.

  2. Lubricate the O-ring in the top of the filter element with clean engine oil.

  3. Place the filter element in the filter head with the tabs (and arrows) on the filter element aligned with the slots (and arrows) in the filter bowl. Verify that the filter element is fully seated in the filter bowl.

  4. Install and tighten the filter bowl about 1/4 turn until you hear and/or feel it click.

    Note Do not fill the filter bowl with fuel before installing it.

  5. Replace the secondary fuel filter as shown in this chapter (if equipped), then prime the fuel system as shown in this chapter.

    Fuel Filter/Water Separator Assembly

    1. Filter Head 4. Filter Element
    2. Bleed Screw 5. Filter Bowl
    3. Filter Element Tab    

Secondary Fuel Filter (if equipped)

Removal

  1. Turn the unit OFF and disconnect the negative battery terminal to ensure unit cannot be operated.

  2. Unscrew the filter 1 - 2 turns and drain the fuel from the filter head into a suitable container.

  3. Remove the filter from the filter head (3). Dispose of fuel and filter according to local regulations.

  4. Clean the filter head.

Installation

  1. Lubricate the new fuel filter O-ring with clean engine oil.

  2. Pre-fill the new fuel filter with fresh diesel fuel.

  3. Install the new fuel filter into the filer head and hand tighten until the fuel filter contacts the filter head.

    Important Do not use a filter wrench to install fuel filter - hand tighten only.

  4. Prime the fuel system as shown in this chapter.

1. Bleed Screw
2. Filter Head
3. Fuel Filter Assembly

Secondary Filter Icon Identification (if equipped)

The icons shown below are located on the fuel filter label. Use the table below for label identification.

Secondary Filter
1. Do Not Use Tools for Service
2. Pre-fill New Filter
3. Lubricate O-rings and Threads with Fresh Engine Oil
4. Hand Tighten Filter Until Filter Contacts Filter Head