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b) Choose the SAE viscosity grade of oil from this chart:
• from 5 to 35 °C = SAE 30
• from -15 to + 5 °C = 5W-30 or 10W-30 (multi-viscosity)
• from -25 to + 35 °C = Synthetic oils 5W-30 or 10W-30 (multi-viscosity)
c) The use of multi-viscosity oils in hot temperatures will result in higher-than-
normal oil consumption; therefore, check oil level more frequently.
d) Do not mix oils of different brands and features.
e) SAE 30 oil, if used below 5°C, could result in possible engine damage due to
inadequate lubrication.
f) Oil should be at “MAX” mark do not overfill.
• Overfilling with oil may cause Smoking, spark plug, or air filter fouling, which will
cause hard starting.
4.4 AIR FILTER
The air filter must always be in perfect working order, to prevent debris and dust
from getting sucked into the engine, reducing the efficiency and life of the machine.
a) Always keep the filtering element free of debris and in perfect working order.
b) If necessary, replace the filtering element with an original spare part.
Incompatible filtering elements can impair the efficiency and life of the engine.
c) Never start the engine without mounting the filtering element properly.
4.5 SPARK PLUG
Not all the spark plugs for endothermic engines are the same!
a) Use only spark plugs of the recommended type, with the right heat range.
b) Check the length of the thread, because – if it is too long – it will damage the
engine beyond repair.
c) Make sure that the electrodes are clean, and their gap is correct.
5. STANDARDS OF USE
5.1 BEFORE EVERY USE
Before every use, perform the following checking procedures in order to ensure
regular operation.
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