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To change blades, loosen the blade bolt. Mount the new blade so that it sits in the same way as the old one and tighten the blade bolt (fig. 26). Tightening torque: 45 Nm.
When replacing the blade, the blade bolt should also be replaced.
The guarantee does not cover damage to the blade, blade holder or engine caused by running into ob- stacles.
When replacing the blade, the blade holder and blade bolt, always use original spare parts. Non- authentic spare parts could lead to the risk of per- sonal injury or damage, even if they fit the ma- chine.
SHARPENING OF THE BLADES
Sharpening of the blades must be done by wet method grinding, using a whetstone or a grind- stone.
For the sake of safety, the blades should not be sharpened on an emery wheel. A very high temper- ature could cause the blade to become brittle.
Once the blade has been sharpened, it must then be balanced so as to avoid vi- bration damage (fig. 27).
STORAGE
WINTER STORAGE
Empty the fuel tank. Start the engine and let it run until it stops. The same petrol must not remain in the tank for more than one month.
Tip up the mower and screw out the sparking plug. Pour a teaspoon of engine oil in the sparking plug hole. Pull out the starting handle slowly so that the oil is distributed in the cylinder. Screw in the sparking plug.
Thoroughly clean the mower and store it indoors in a dry place.
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