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Diesel IQ - Powerstroke & Cummins Diesel Engines

Powerstroke & Cummins Diesel Engines

Air Compressor Inspection

December 2, 2020 by DieselIQ Leave a Comment

CAUTION

 All air compressors have a small amount of lubricating oil carry over which lubricates the piston rings and moving parts. When this lubricating oil is exposed to normal air compressor operating temperatures over a period of time, the lubricating oil will form varnish or carbon deposits. If the following inspections are not done, the air compressor piston rings will be affected by high operating temperatures and will not seal correctly.

 Air Compressor Discharge Inspection

 Drain the air system wet tank to release the system air pressure. Remove the air discharge line from the air compressor.

  Measure the total carbon deposit thickness inside the air discharge line as shown. If the total carbon deposit (X + X) exceeds 2 mm [1/16-inch], clean and inspect the cylinder head, the valve assembly, and the discharge line. Replace if necessary. Contact your Authorized Repair Location for procedures. 

If the total carbon deposit exceeds specifications, continue checking the air discharge line connections up to the first tank until total carbon deposit is less than 2 mm [1/16-inch]. Clean or replace any lines or connections that exceed this specification.

   Inspect any air driers, spitter valves, pressure relief valves, and alcohol injectors for carbon deposits or malfunctioning parts. Inspect for air leaks. Maintain and repair the parts according to the manufacturer’s specifications.

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