Service Manual

ISB, ISBe and QSB (Common Rail [...] Air Compressor Carbon Buildup
Section 12 - Compressed Air System - Group 12 Page 12-3
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WARNING
The air discharge line must be capable of
withstanding extreme heat and pressure to prevent
the possibility of personal injury and property
damage. Refer to the OEM service manual for
specifications.
NOTE: If the total carbon deposit thickness exceeds
specification, remove and clean, or replace, the air
discharge line. Refer to the OEM service manual for the
manufacturer's specifications.
Continue to check for carbon buildup in the air discharge
line connections up to the first connection or wet tank.
Clean or replace any lines and fittings with carbon buildup
thicker than 1.6 mm [0.06 in]. Refer to the original
equipment manufacturer (OEM) service manual for
cleaning or replacement instructions.
Preparatory Steps
Check the marking on the air compressor head before
cleaning or replacing the cylinder head.
Repair Direction:
1 No marking: Perform On-Engine Repair.
2 CH marking: Perform Off-Engine Repair.
3 CH2 marking: Replace the air compressor cylinder
head. Refer to Procedure 012-007 in Section 12.
Clean
On-Engine Repair
Use the Air Compressor Cleaning Kit, Part Number
2892280, to clean and remove internal carbon deposits
and other foreign material from the air compressor
cylinder head.
The items below are not included in the air compressor
cleaning kit, Part Number 2892280, but are required to
perform the repair.
• Regulated shop air 621 kPa [90 psi]
• Automatic transmission fliud (ATF)
• Shop rags, and a 19 liter [5 gal] bucket
• INSITE™ electronic service tool.