Cleaning The Blower Housing - Toro TITAN ZX4800 Operator's Manual

Figure 40
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 the air cleaner is dirty.
Set the gap to 0.76 mm (0.03 inch).
Figure 41
Installing the Spark Plug
Tighten the spark plug to 27 N•m (20 ft-lb) as shown
in Figure 42.
g027478
Cleaning the Blower
Housing
Every 100 hours/Yearly (whichever comes first)
g027479 To ensure proper cooling, ensure that the grass
screen, cooling fins, and other external surfaces of the
engine are kept clean at all times.
Annually, or every 100 hours of operation (more often
under extremely dusty, dirty conditions), remove the
blower housing, and any other cooling shrouds. Clean
the cooling fins and external surfaces as necessary.
Make sure the cooling shrouds are installed.
Important:
Operating the engine with a blocked
grass screen, dirty or plugged cooling fins, and/or
35
Figure 42
g028109