4.6
Section 4
Air Cleaner and Air Intake System
Air Intake/Cooling System
To ensure proper cooling, make sure the grass screen,
cooling fan fins, and other external surfaces of the
engine are kept clean at all times.
Every 100 hours of operation (more often under
extremely dusty or dirty conditions), remove the
blower housing and other cooling shrouds.* Clean the
cooling fins and external surfaces as necessary. Make
sure the cooling shrouds are reinstalled.
*Cleanout kits, Kohler Part No. 25 755 20-S (black) or
25 755 21-S (gold), are recommended to aid
inspection and cleanout of the cooling fins. See
Figure 4-11.
NOTE: Operating the engine with a blocked grass
screen, dirty or plugged cooling fins, and/or
cooling shrouds removed, will cause engine
damage due to overheating.
Figure 4-11. Cleanout Kit Installed on Blower
Housing.
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