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SHARPENING THE BLADES
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.
BALANCING THE BLADES
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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