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Cleaning the Blower
Housing
To ensure proper cooling, ensure that the grass
screen, cooling fins, and other external surfaces of the
engine are kept clean at all times.
Important:
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.
Cleaning the Engine Screen
Service Interval: Before each use or daily—Clean
the engine screen, engine-oil cooler,
and the area around the engine.
Before each use or daily—Clean around the
engine-exhaust system.
Before each use remove any buildup of grass, dirt,
or other debris from the engine screen, engine
exhaust, engine-oil cooler, and the area around the
engine. This helps ensure adequate cooling and
correct engine speed and reduces the possibility of
overheating and mechanical damage to the engine.
Cleaning the Cooling
System
Service Interval: Every 400 hours—Check and
clean the engine cooling fins and
shrouds (more often in dirty or dusty
conditions).
1.
Park the machine on a level surface, disengage
the PTO, and engage the parking brake.
2.
Shut off the engine, remove the key, and wait
for all moving parts to stop before leaving the
operating position.
3.
Remove the air-intake screen and fan housing.
4.
Clean the debris and grass from the engine
parts.
5.
Install the air-intake screen and the fan housing.
1. Guard and engine
air-intake screen
2. Fan housing
54
Figure 75
3. Engine-oil cooler
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