Series 60 Defective Air Compressor

To determine if a defective air compressor is causing excessive crankcase pressure, perform the following: ‪

1. Perform a crankcase pressure test and record the test results.
2. Disconnect the air outlet line from the air compressor;

Series 60 Defective Air Compressor 300x175 Series 60 Defective Air Compressor

3. Repeat step and record the test results.
4. Compare the results of test one with test two.

If the engine crankcase pressure remained the same, check the turbocharger;
If the engine crankcase pressure decreased, repair the air compressor;

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