ICS 680GC, Руководство оператора

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© 2009 ICS, Blount Inc. F/N 525746 Jan 09
TITLE 680GC OPERATOR’S MANUAL
22
MAINTENANCE
SPARK PLUG
• A worn or fouled spark plug can cause a loss of power,
difficulty starting or rough idle (Figure 1).
• If the spark plug is dirty, clean it with a wire brush and check
the electrode gap. Readjust if necessary.
The correct gap is .020” (0.50mm).
• The spark plug should be replaced after 40 hours of operation
or earlier if the electrode is badly corroded.
• Always use the recommended spark plug type. Using the
wrong spark plug can severely damage the piston and cylinder
(Champion RCYJ4).
Figure 1
CARBURETOR
• The function of the carburetor is to mix fuel with air.
Adjustments other than idle speed should be made by a
servicing dealer.
• Before adjusting the engine idle speed, make sure the air
filter is clean and the engine is warmed up.
T – Idle Screw (Figure 2) is adjusted so that the engine idles
smoothly but the clutch does not engage.
• If cut-off saw has been running satisfactorily and there
is a gradual decrease in power and drop in RPM at full
throttle, the filter may have become dirty or saturated
with water.
T
Figure 2