MAINTENANCE AND S ERVICING
Charge Air Cooling
Charge air is routed through a cooler that is located in the
cooling box (C), prior to entering the engine intake. The
cooler should be cleaned daily with compressed air. Refer
to Main taining Engine Cooling Box, page 358
Figure 5
.97: Engine Air Intake System
Cleanin
g Screens and Coolers
The cooling box screen is cleaned using two electrically driven rotors and suction from the engine’s cooling fan
to sweep and vacuum the screen when the engine is running. If the screen is not being cleaned, the rotors or
ducts m ay be plugged.
Follow these steps to clear plugged rotors:
1. Open the hood R efer to 5.2.3 Opening Hood (Highest Position), page 307.
2. Remove nuts (B).
3. Pivot screen cleaner assembly (C) away from screen.
4. Blow out debris from c leaner ducts (A) with
compressed air.
5. If ducts are plugged, open the cooler box screen. Refer
to Opening Cooler Box Screen, page 358.
Figure 5.98: Engine Cooling System
147649 359 Revision A