Dolmar HT-2556 D Benutzerhandbuch

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Checking the muffler bolts /    
 
 
cleaning the exhaust outlet
Caution:
Do not tighten the muffler bolts when the engine is hot!
The muffler bolts (6) are directly accessible so they can be 
checked for tightness. If loose, hand-tighten (caution: do not 
over-tighten).
Regularly clean the exhaust outlet (7) with a suitable tool.
Checking the ignition spark
Use insulated pliers to hold the loose spark plug (5), with the 
spark plug cap firmly attached, against the engine housing (away
from the spark plug hole!).
Put the ON/OFF (I/O) switch in the “I” position.
Pull the starter cable hard.
If the function is correct, an ignition spark must be visible near 
the electrodes.
CAUTION:  Use  only  the  following  spark  plug:  NGK  BPMR 
7A.
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.
Pull the plug cap (4) 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 0,6 - 0,7.