Cleaning The Blower Housing; Cleaning The Cooling System - Toro TITAN HD 2000 Series Operator's Manual

Checking the Spark Plug(s)
Important:
Do not clean the spark plug(s).
Always replace the spark plug(s) when it has a
black coating, worn electrodes, an oily film, or
cracks.
If you see light brown or gray on the insulator, the
engine is operating properly. A black coating on the
insulator usually means the air cleaner is dirty.
Set the gap to 0.76 mm (0.03 inch).
Figure 77
Figure 78
Installing the Spark Plug(s)
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Cleaning the Blower
Housing
Every 100 hours or yearly, whichever comes
first—For Kohler engines—clean the cooling
fins (more often under dusty, dirty conditions).
To ensure proper cooling, ensure that the grass
screen, cooling fins, and other external surfaces of the
engine are kept clean at all times.
For Kohler engines, remove the blower housing, and
any other cooling shrouds. Clean the cooling fins and
external surfaces as necessary. Make sure that the
cooling shrouds are installed.
Important:
Operating the engine with a blocked
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grass screen, dirty or plugged cooling fins, and/or
cooling shrouds removed, will cause engine
damage due to overheating.
Cleaning the Cooling
System
1. Park the machine on a level surface, disengage
the blade-control switch (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 filter from the engine.
4. Remove the engine shroud.
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Figure 79
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