Replacing/Cleaning Precleaner Filter

causym CAUTION:

Recommended Service Interval

Replacing/Cleaning Precleaner Filter

Every 50 Hours or As Needed

 

High-pressure fluid remaining in fuel lines can cause serious injury. Only technicians familiar with this type of system should perform repairs. Before disconnecting fuel lines, sensors, or any other components between the high-pressure fuel pump and nozzles on engines with High Pressure Common Rail (HPCR) fuel system, wait a minimum of 15 minutes after engine is stopped.

NOTE: Do not clean fuel precleaner and change primary and secondary fuel filters at the same time. Doing so will make it difficult to restart the machine. Perform this procedure, then run the engine before changing the primary and secondary fuel filters.

Clean fuel precleaner filter if buildup is visible on filter screen or if service code is displayed on ADU.

1. Start engine and run 3-5 minutes at low idle if machine had not been previously running.

2. Shut OFF engine.

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3. Remove door (A) to gain access to fuel precleaner assembly (B).

4. Close fuel shut-off valve (C).

5. Thoroughly clean dirt and debris from fuel precleaner assembly and surrounding area.

6. Remove precleaner bowl (D) using a 25 mm (1 in.) socket on bottom of bowl.

7. Clean filter screen (E) and precleaner bowl.

8. Inspect O-ring (F) for damage. Replace if necessary.

9. Install screen and precleaner bowl in reverse order of removal.

10. Open fuel shut-off valve.

11. Start engine and run 3-5 minutes at low idle.


A-Door
B-Precleaner Assembly
C-Fuel Shut-Off Valve
D-Precleaner Bowl
E-Screen
F-O-Ring

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