MacDon M155 Operators Manual - Manual (Page 333)

MAINTENANCE AND SERVICING
Cleaning Screens and Coolers
The cooling box screen is equipped with an automatic cleaning device that vacuums the screen by means of two
rotors. They only operate when the engine is running. The rotors are electrically driven and the suction is provided
by the engine cooling fan. If the screen is not being cleaned by the rotors, they may be plugged.
If rotors are plugged, clean as follows:
1. Open the hood. Refer to 5.4.3 Opening Hood (Highest
Position), page 267 .
2. Remove nuts (B).
3. Pivot screen cleaner assembly (C) away from screen.
4. Blow out debris from ducts (A) with compressed air.
5. If ducts are plugged, open the cooler box screen. Refer
to Opening Cooler Box Screen, page 316 .
Figure 5.107: Engine Cooling System
6. Blow debris out of ducts (A) with compressed air.
7. Clean screen with compressed air.
Figure 5.108: Engine Cooling System
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