Spark Arresting Screen In Muffler; Spark Plug - Stihl TS 440 Manual De Instrucciones

English
Spark Arresting Screen in
Muffler
The muffler of your machine is fitted with
a spark arresting screen.
If engine performance deteriorates,
N
check the condition of the spark
arresting screen in the muffler.
Clean or replace the screen, as
necessary. To reduce the risk of fire,
never operate the machine without
a properly maintained and
undamaged spark arresting screen
in place.
WARNING
Wait until the engine and the muffler
have cooled completely before
performing the following operations.
2
1
Remove the screw (1)
N
Pull the spark arresting screen (2)
N
upwards out of the muffler
Clean the dirty spark arresting
N
screen
If the screen is damaged or heavily
N
carbonized, install a new one
Re-install the spark arresting screen
N
in the reverse order of steps
44

Spark Plug

If there is a loss of engine power, the
machine is difficult to start or runs poorly
at idle, first check the spark plug.
Install a new spark plug after approx.
100 operating hours or earlier if the
electrodes are eroded/corroded.
The wrong fuel mix (too much engine oil
in the gasoline), a dirty air filter and
unfavorable running conditions (mostly
at part throttle etc.) affect the condition
of the spark plug. These factors cause
deposits to form on the insulator nose,
which may degrade performance.
Removing the spark plug
Turn off the engine move the stop
N
switch to STOP or 0
2
Remove the screw (1) and remove
N
the cap (2) the screw (1) is
secured in the cap (2) to prevent
loss
Remove the spark plug boot (3)
N
Unscrew the spark plug (4)
N
Checking the spark plug
Clean the spark plug if it is dirty
N
1
Check the electrode gap (A) and
N
readjust if necessary
"Specifications"
Use only resistor type spark plugs of
N
the approved range. See the
chapter "Specifications" in this
instruction manual
Correct the problems that have caused
fouling of the spark plug:
– too much oil in fuel mix;
dirty air filter; or
–
– unfavorable running conditions, e.g.
operating at part throttle.
3
4
A
see
TS 440