Replacement of the Emergency Temporary Filter, Fuel Pro 382

p3 mm 47.02.000

Warning: Fluid circulated through the fuel/water separator to heat the fuel may be diesel fuel returned from the engine, or engine coolant. Drain the fuel/water separator only when the engine and fluids have cooled. Draining it when the engine is hot could cause severe personal injury due to scalding.

If returning fuel is released into the atmosphere, its vapors can ignite in the presence of any ignition source. Do not expose the fuel to, or work with the fuel system near, open flame or intense heat. To do so could cause fire, possibly resulting in serious personal injury or property damage.

  1. Shut down the engine, apply the parking brake, and chock the tires.
  2. Put a clean receptacle under the fuel/water separator and attach a piece of hose to the drain valve, to direct fuel into the receptacle.
    The drain valve has a 1/2-inch (12.7-mm) pipe; use a hose with a 1/2-inch pipe thread to fit correctly.
  3. Remove the vent cap (Fig., Item 4) and open the drain valve ( Fig., Item 1) to drain the fuel completely, then close the drain valve.

    1. Drain Valve

    2. Lower Housing

    3. Clear Cover

    4. Vent Cap

    5. Collar

    6. Inlet Port/Check Valve

    Fig. 1, DAVCO Fuel/Water Separator (Fuel Pro 382 Shown)

  4. Using a DAVCO Collar Wrench, shown in Fig., remove the clear cover and collar.

    5. Note: Broken vent cap and collar warranty claims will not be accepted if any tool other than a DAVCO Collar Wrench, part number 380134, is used for removal. During installation, the vent cap is to be hand-tightened only, not tightened with a wrench.

  5. Remove the filter and dispose of it in an environmentally acceptable manner.

    Fig. 2, DAVCO Collar Wrench

  6. Clean all threads and sealing surfaces very thoroughly. Even a small amount of dirt will prevent the fuel/water separator from sealing, and an air leak may result.
  7. Ensure that the drain valve is closed.
  8. Remove the filter grommet from the filter stud, if equipped.
  9. Fill the housing to the top of the filter element with clean diesel fuel.
  10. Install a standard engine spin-on filter (part number FF105 or equivalent) on the filter stud.
  11. Install the cover O-ring, clear cover, and the collar. Hand-tighten the collar.
  12. Install and hand-tighten the vent cap O-ring and vent cap.
  13. Start the engine. When the lubricating oil reaches its normal operating pressure, increase engine speed to high idle for one to two minutes to purge air from the system.
  14. Check for leaks and shut down the engine.
Note:
Parent topic: Checking and Replacement of the Fuel/Water Separator Element
Document Number: 0000116543
Manual Publication Date: 2024-05-15
Topic Publication Date: 2024-11-22