Carbon Buildup, Air Compressor (4-01)
NOTE: The illustrations shown will be of the single cylinder
air compressor. Differences in procedures for one and two
cylinder Holset or Cummins air compressors will be shown
where necessary.
Shut off the engine.
Open the draincock on the wet tank to release com-
pressed air from the system.
Remove the air inlet and outlet connections from the air
compressor.
Measure the total carbon deposit thickness inside the air
discharge line as shown.
NOTE: The carbon deposit thickness must not exceed 1.6
mm [0.06 (1/16)-inch].
Warning: The air discharge line must be capable of with-
standing extreme heat and pressure to prevent personal
injury and property damage. Refer to the manufacturer’s
specifications.
NOTE: If the total carbon deposit thickness exceeds spec-
ification, remove and clean, or replace the air discharge line.
Refer to the manufacturer’s material specifications.
Section 4 - Compressed Air System Carbon Buildup, Air Compressor (4-01)
N14 Page 4-9