EMAK Oleo-Mac CHEYENNE 92 Manual De Uso página 94

u SHARPENING THE BLADES
WARNING – I'is advisable to do so by an authorized Service Centre.
The mowing blades must be sharp, statically balanced and straight. Blunt, incorrectly sharpened or
damaged mowing blades cause grass to be torn out of the ground, damage to lawns and mediocre
collection of mowed grass in the grass catcher.
If the blades are merely blunt and do not exhibit any other damage, then they may be sharpened. After
sharpening the pair of blades must be balanced. Balancing will prevent vibrations of the mowing deck.
The weight difference between the individual blades may not exceed 2g. During replacement
always also check the wear on the distance sleeves and mounting bolts, ensuring they are in perfect
condition. If serious damage to the mowing deck is discovered it is necessary to have the machine
thoroughly inspected at an authorised service centre.
Always use a new, unused M16 lock nut. Never reuse a lock nut that has already
been used, because safe attachment of the blade cannot be guaranteed!
Do not repair a blade that is deformed or otherwise damaged, replace it
immediately.
Whenever handling the mowing blades, always use heavy-duty work gloves.
Sharpening procedure:
To remove the blades follow the instructions in the previous chapter
} Take out the blades according to the procedure described
in the previous chapter
} Clean the blades.
} First sharpen with a grinder and then with a file.
Do not sharpen directly on the mowing deck.
Install the sharpened blade proceeding in the reverse sequence.
u BALANCING THE BLADES
WARNING – I'is advisable to do so by an authorized Service Centre.
Pay increased attention to levelling and balancing the blades. The vibration of blades that are not
levelled and balanced may damage the motor or the mowing deck.
When balancing, insert the screwdriver into the centring
hole and set the blade into a horizontal position. If the blade
remains in this position, it is balanced. If one of the ends
is weighs down, grind this side until it is balanced. When
balancing by grinding, do not shorten the length of the blade!
The permitted static imbalance may not exceed 2g.
If you are not certain about the procedure, please contact an authorised service centre,
where they will gladly provide advice.
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