Alliance

rv mm 47.02.000

The only maintenance necessary on an Alliance fuel/water separator is to replace the filter element.

    Warning: Diesel fuel is flammable and can ignite if exposed to an open flame, intense heat, or other ignition source. Do not drain fuel near, or expose fuel vapor to open flame or intense heat. Exposure to open flame or intense heat could start a fire, possibly resulting in personal injury or property damage. When working on a fuel system, have a fire extinguisher within easy reach.

  1. Drain off some fuel by loosening the vent plug and opening the drain valve. See Fig..

    1. Mounting Head

    2. Fuel Primer Pump

    3. Vent Plug

    4. Bowl O-Ring

    5. Bowl Gasket

    6. Bowl Probe Plug

    7. Water Sensor Probe

    8. Heater Connector

    9. Drain Plug

    10. Sight Bowl

    11. Filter Element

    Fig. 1, Alliance Fuel/Water Separator

  2. Disconnect the water sensor and heater connections if equipped.
  3. Remove the element and bowl together, by turning counterclockwise.
  4. Remove the bowl from the element and clean the O-ring seating surface.
  5. Apply a coating of clean fuel or motor oil to the new O-ring and element seal.
  6. Spin the bowl onto the new element, then spin them both onto the filter head, snugly, by hand only.

    7. Important: Do not use tools to tighten the bowl and element.

  7. Connect the water sensor and heater connectors if equipped.
  8. If equipped with a primer pump, prime the fuel/water separator.
    1. Loosen the vent plug. Then operate the primer pump until the fuel purges at the vent plug.
    2. Close the vent plug.
  9. Start the engine and check for fuel leaks.
  10. Shut down the engine and correct any fuel leaks.
Note:
Parent topic: Replacing the Fuel/Water Separator Element
Document Number: 0000120877
Manual Publication Date: 2024-05-23
Topic Publication Date: 2024-11-13