Service Manual

Air Compressor Carbon Buildup ISB, ISBe and QSB (Common Rail [...]
Page 12-2 Section 12 - Compressed Air System - Group 12
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Air Compressor Carbon Buildup
(012-003)
Initial Check
WARNING
Wear appropriate eye and face protection when using
compressed air. Flying debris and dirt can cause
bodily injury.
Shut the engine OFF.
Open the drain cock on the wet tank to release the
compressed air from the system.
WARNING
Air discharge lines can be very hot. Be sure the lines
are cool before handling to reduce the possibility of
personal injury.
Remove the air inlet and outlet connections from the air
compressor.
Measure the total carbon buildup thickness inside the air
discharge line as shown.
NOTE: The carbon buildup thickness must not exceed
1.6 mm [0.06 in].