Dolmar PS7300 Manuale Utente

33

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 (6) 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 BPMR 7A 

or BOSCH WSR 6F.

Stick the combination tool (7) between the hood and cylinder 

exactly as shown.
IMPORTANT! Do not stick the tool in the spark plug hole. 

It should touch only the cylinder (otherwise the engine will 

be damaged!).
With the spark-plug cap firmly attached to the unscrewed spark 

plug (8), use insulated pliers to hold the plug against the tool 

(away from the spark-plug hole!).
Switch the I/STOP ignition switch (9) as shown by the arrow.
Pull the starter cable hard.
If the function is correct, an ignition spark must be visible near 

the electrodes.

   .020”
(0,5 mm)

Check the muffler screws (10) for tightness. If they are loose, 

hand-tighten them. Important - do not overtighten!

On model with catalytic converter, first remove the two plugs 

(11) using a small screwdriver.
Put the plugs back in after checking the screws!

 

Information on the catalytic converter: The catalytic converter 

reduces the pollutant content of the exhaust.