C9.3 Engines for Caterpillar Built Machines Crankcase Fumes Disposal Tube Has Oil Draining Caterpillar


Crankcase Fumes Disposal Tube Has Oil Draining
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C9.3 Engines for Caterpillar Built Machines [KENR5393]
LUBRICATION SYSTEM
FUMES DISPOSAL GP
C9.3 Engines for Caterpillar Built Machines Crankcase Fumes Disposal Tube Has Oil Draining
1.1. Probable Cause
2.1. Recommended Actions

Probable Cause




Illustration 1g02211761

(1) Crankcase pressure sensor

(2) Crankcase filter housing

(3) Fumes disposal tube

(4) Oil drain tube




Illustration 2g02013955

Left side of the engine

(5) Check valve

Recommended Actions

Table 1
Troubleshooting Test Steps     Values     Results    

1. Check Valve

A. Inspect the check valve at the bottom of the oil drain tube has failed.
   

Check Valve    

Result: The check valve was damaged.

Repair: Replace the check valve.

Verify the repair.
   

If the procedure did not correct the issue, contact your Cat dealer Technical Communicator (TC). For further assistance, your TC can confer with the Dealer Solutions Network (DSN).

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