OMAC AS 1100 Operator's Manual page 42

tightly fastened.
IMPORTANT Cleaning the air filter is essential to guarantee the efficiency and duration of
the machine. Do not work with a damaged filter or without a filter, as this could permanently
damage the engine.
It must be cleaned after every 8-10 working hours.
Clean the filter as follows:
– Loosen the knob (1), remove the cover (2) and the filter element (3).
– Wash the filter element (3) with soap and wa ter. Do not use petrol or other solvents.
– Leave the filter to dry in the open air.
– Replace the filter element (3) and the cover (2) and tighten the knob (1).
5.6 CHECKING THE SPARK PLUG (Fig. 8)
Periodically remove and clean the spark plug using a metal brush to get rid of any deposits.
Check and reset the correct distance between the electrodes.
Replace the spark plug and fasten it firmly using the supplied wrench.
The spark plug must be replaced with one with the same characteristics whenever the electro
des have burnt or the insulation has worn, and in any case every 50 working hours.
5.7 CARBURETTOR ADJUSTMENTS
IMPORTANT When the engine tends to switch off or there is not much difference in speed
when using the throttle trigger, it is recommended to adjust the carburetion settings. This
operation must be performed by your Retailer only.
5.8 LONG PERIODS OF DISUSE
IMPORTANT If the machine will not be used for a period of more than 2-3 months it is re com
mended to follow some advice to avoid diffi culty when you wish to use the machine and to
prevent permanent damage to the engine.
5.8.1 Storage
Before putting the machine away:
– Empty the fuel tank.
– Start the engine and run it idle until it comes to a halt, so that it uses up all the fuel that is
left in the carburettor.
– Allow the engine to cool down and remove the spark plug cap.
5.8.2 Restarting work
When you wish to start using the machine again:
– Replace the spark plug cap.
– Prepare the machine as indicated in the para-graph entitled "Preparing for work".
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