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To replace the fuel filter:
1. Close the fuel shut-off valve, if equipped.
2. Thoroughly clean the fuel filter assemblies and
surrounding areas.
3. Disconnect the water sensor wiring (if equipped).
4. Loosen the drain plugs (3) and drain the fuel into
a suitable container.
5. Firmly grasp the retaining ring (4) and rotate it 1/
4 turn clockwise to get it past raised locators when
lifting.
6. Remove the ring with the filter element.
7. Inspect the filter mounting base (6) for
cleanliness. Clean if required.
8. Make sure that raised locators on the fuel filter
canisters are indexed properly with the slots in the
mounting base for correct installation.
9. Install the new filter elements onto the mounting
bases. Ensure the elements are properly indexed
and firmly seated on the bases. It may be
necessary to rotate the filters for correct
alignment.
10. If a water separator (5) is provided, remove it from
the old filter element. Drain and clean the water
separator and dry it with compressed air. Install
the water separator onto the new element and
tighten it securely.
11. Align the keys on the filter element with the slots
in the filter base.
12. Install the retaining ring onto the mounting base
making sure the dust seal is in place on the filter
base.
13. Hand tighten the ring counter clockwise (about 1/
3 turn) until it snaps into the detent. DO NOT
overtighten the retaining ring. The proper
installation is indicated when a “click” is heard
and release of the retaining ring is felt.
14. Put the drain plug provided with the new element,
into the used element.
15. Reconnect the water sensor wiring (if equipped).
16. Open the shut-off valve and bleed the fuel system.
5.4.6
Bleeding the fuel system
Every time the fuel system has been opened up for
service (lines disconnected or filters), it is necessary
to bleed air from the system.
If any fluid is injected into the skin,
it must be surgically removed within
a few hours by a doctor familiar
with this kind of injury or gangrene
may result.
!
(3)
(5)
(1)
(4)
(2)
(4)
(6)
(3)
High-pressure fluid remaining in the
fuel lines can cause serious injury.
Do not disconnect or attempt to
repair fuel lines, sensors or any
other component between the high-
pressure fuel pump and nozzles on
engines with High Pressure
Common Rail (HPCR) fuel system.
Only technicians familiar with this
type of system can perform repairs.
Protect hands and body from high
pressure fluids. If an accident
occurs, see a doctor immediately.
Prevent fuel contamination. Do not
crack any fuel lines to bleed the fuel
system.
!
!
!
