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the threads of the adjusting screws cleaned with "Antykor" paraffin and protected
against corrosion with "Antykor 1" grease, in addition to a full lubrication. It is advisable
to store the machine under a canopy when not in use. However, if this is not possible,
the condition of the protection should be checked from time to time and, if necessary,
the rain-washed grease should be replenished.
NOTE! During maintenance work, the unit should be secured against
rolling (it should be connected to the tractor with the parking brake on)
and unfolded.
6. Replacement procedures
Bearing replacement
If the bearings are damaged, they must be replaced:
•
place the machine on a horizontal surface,
•
unscrew the four screws holding the ball bearings on each side,
•
move the tubular shaft away,
•
loosen the two headless screws in each bearing, and pull the bearings off with an
extractor,
•
fit the new bearings loosely onto the shaft,
•
roll the shaft between the bearing plates and screw the bearings to them. Screw in
headless screws using adhesive to prevent loosening.
•
do not replace the ball bearings on the disc holders,
•
In the event of damage, replace the entire disc holder.
Replacement of working components
Excessively worn elements make it difficult for tools to penetrate, increase
operating resistance and can damage the machine. The discs should be replaced with
new ones when their diameter reduces to 520 mm.
The working components must be changed on the machine lowered to the ground
after the tractor engine has been switched off. To ensure that the elements to be
replaced do not come into contact with the ground, sturdy shims (e.g. wooden blocks
approx. 20 cm thick underneath adjacent elements or the shaft) must be provided. In
the case of a trolley, the maximum lowered wheels can also be used as supports. After
lowering the harrow, switching off the tractor engine and applying the handbrake, check
the stability of the tractor-machine combination. Only typical screws should be used to
fix new components.
If machine components are disassembled several times, it is necessary to inspect and
possibly replace connecting elements such as bolts, washers or nuts, excessive wear
of which may lead to uncontrolled loosening of the connecting elements and
subsequent damage.
When working on extremely worn work tools, such work can cause, for
example, bearing damage in the case of a small disc diameter. Tools should be
replaced when their wear and tear exceeds the limits allowed by the manual. If the
recommendations are not followed, damage may occur for which the manufacturer is
NOT RESPONSIBLE!
