Measure the total carbon buildup thickness inside the air discharge line, as illustrated.
NOTE: The carbon buildup thickness must not exceed 1.6 mm [1/16 in].
If the total carbon buildup thickness exceeds specification, remove and clean, or replace the air
discharge line. Refer to the OEM service manual.
Continue to check for carbon buildup in the air discharge line connections up to the first connection, or wet tank.
Clean and replace any lines and fittings with carbon buildups greater than 1.6 mm [1/16 in]. Refer to the OEM
service manual.
