24 (28)
7.5
Rotary hoe blades
The condition of the blades should be checked after every few uses. When the blades are in good shape, they
penetrate to the ground surface better and therefore the hoe needs less power to operate. If the performance
of the rotary hoe has weakened from the original, the blades have probably become very blunt or some of the
blades have been damaged. The blades wear down during normal use and they may bend or crack as they hit
rocks. If the blades are bent, they have deep notches, cracks or similar signs of damage, the blades should be
replaced with new ones.
The blade shaft is consists of
pairs of left- and righthand
blades, and they can be
replaced independently as
needed. Highlighted in the
adjacent figure are left-hand
blades A428806.
Evenly worn blades can be
sharpened. Do not sharpen
the blades razor-sharp, since
this will make them wear down
very quickly and over
sharpness does not improve
the performance of the hoe.
Note that the blade
temperature should remain as
even as possible during
sharpening. Excess heating
will weaken the tensile
strength and wear resistance
of the steel. Only use blades
similar to the original ones.
Abnormal vibration that remains after thorough cleaning of the equipment may be a sign of imbalance of the
blade axle. Replace damaged blades as needed. Imbalance may lead to damage to the bearings. Contact
service, if the vibration persists.
If the blades have large notches or cracks or have worn down excessively, they must be
replaced. Always use good protective gloves when handling the blades.
7.6
End of life disposal
When the attachment is at the end of its useful life recycle and dispose of the attachment properly. Dismantle
the attachment and separate the different materials, such as plastic, steel, rubber, and oils, for example. Drain
and collect all oils and handle them by following the current local regulations. Never leave any oil or other
material in the environment.
Recycle each material by delivering them to a proper collecting place. Let a waste management company do
the recycling, if possible.
