Toro 74504TE, Руководство оператора, Страница: 35 / 64

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.
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 0.75 mm (0.03 inch).
B A
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Figure 41
Installing the Spark Plug
B
A
16 ft-lb
22 N-m
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C
D
Figure 42
Checking the Spark Arrester
If Equipped
Service Interval: Every 50 hours
WARNING
Hot exhaust-system components may ignite
gasoline vapors even after you shut off the engine.
Hot particles exhausted during engine operation
may ignite flammable materials, resulting in
personal injury or property damage.
Do not refuel or run the engine unless the spark
arrester is installed.
1. Shut off the engine, wait for all moving parts to stop,
engage the parking brake, and remove the key.
2. Wait for the muffler to cool.
3. If you see any breaks in the screen or welds, replace
the arrester.
4. If the screen is plugged, remove the arrester, shake
loose particles out of the arrester, and clean the
screen with a wire brush (soak the screen in solvent
if necessary).
5. Install the arrester on the exhaust outlet.
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