Cleaning The Blower Housing - Toro TimeCutter SW 4200 Operator's Manual

Figure 34
Checking the Spark Plug
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.
Note:
If you see light brown or gray on the insulator,
the engine is operating properly. A black coating on
the insulator usually means that the air cleaner is dirty.
Set the gap to 0.76 mm (0.030 inch).
Figure 35
Installing the Spark Plug
Tighten the spark plug to 25 to 29 N∙m (18 to 22 ft-lb).
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Cleaning the Blower
Housing
Service Interval: Every 100 hours/Yearly (whichever
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To ensure proper cooling, make sure that the grass
screen, cooling fins, and other external surfaces of the
engine are kept clean at all times.
Clean the cooling fins and external surfaces as
necessary. Make sure that the cooling shrouds are
installed. Torque the blower housing screws to 7.5
N·m (5.5 ft-lb).
Important:
Operating the engine with a blocked
grass screen, dirty or plugged cooling fins, and/or
cooling shrouds removed, causes engine damage
due to overheating.
31
Figure 36
comes first)
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