Service Manual

Air Compressor (Oil Carryover) ISB, ISBe and QSB (Common Rail [...]
Page 12-36 Section 12 - Compressed Air System - Group 12
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NOTE: Compare the test results with the reference results
shown below.
Time Air Compressor Has Been In Service (Months/
Years):
Less Than 6 Months - Compressor in good condition
6 Months to 2 Years - Compressor in good condition
Greater Than 2 Years - Compressor in good condition.
Time Air Compressor Has Been In Service (Months/
Years):
Less Than 6 Months - Compressor needs to be
replaced
6 Months to 2 Years - Compressor in acceptable
condition
Greater Than 2 Years - Compressor in good condition.
Time Air Compressor Has Been In Service (Months/
Years):
Less Than 6 Months - Compressor needs to be
replaced
6 Months to 2 Years - Compressor needs to be
replaced
Greater Than 2 Years - Compressor needs to be
replaced.
NOTE: This step must be completed if the compressor
assembly is replaced as a result of this test and is
requested to be returned via the CORE, or enhanced
parts return (EPR) return process.
If the compressor is deemed failed and needs to be
replaced, please place the test paper, with results of Oil
Carryover Test, in a sealable plastic bag, seal to prevent
oil contamination, and include with the failed compressor.