Makita EA4300F 用户手册

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页码 48
8
Checking the ignition spark
Insert combination tool between hood and cylinder as shown.
CAUTION!  Do  not  insert  the  combination  tool  into  the 
spark plug hole! Make contact only with the cylinder (oth-
erwise you might damage the engine).
Using  insulated  pliers,  press  the  unscrewed  spark  plug  (9
against the combination tool (away from the spark plug hole) 
with the spark plug cap firmly on the plug.  
Put combination switch (10) in the ON position.
Pull the starter cable hard.
If the function is correct, an ignition spark must be visible near 
the electrodes.
11
12
13
STOP
Replacing the spark plug
CAUTION:
Do not touch the spark plug or plug cap if the engine is 
running (high voltage).
Switch off the engine before starting any maintenance work.
 
A hot engine can cause burns. Wear protective gloves!
The spark plug must be replaced in case of damage to the 
insulator, electrode erosion (burn) or if the electrodes are very 
dirty or oily.
Remove the filter cover  (see „Cleaning the air filter“).
Pull the plug cap (8) off the spark plug. Use only the combination 
wrench supplied with the saw to remove the spark plug.
Electrode gap
The electrode gap must be .020" (0.5 mm).
CAUTION: Use only the following spark plugs: 
NGK CMR7A-5.
Checking the muffler screws
Unscrew  screws (11) and remove the upper half of the muf-
fler (12). 
Note:  For  saw  models  with  catalytic  converters  (EA500F, 
EA4300F), remove the converter along with the upper muffler 
half. 
The screws on the bottom muffler half (13) are now accessible, 
and it is possible to check them for tightness. If they are loose, 
tighten by hand (Caution: do not over-tighten).
STOP
8
.020”
(0,5 mm)
9
10