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working elements, which should be at least 25 cm. The permissible transport speed of
the tractor with the machine is 15 km/h. It should be reduced to 10 km/h on roads with
poorer surfaces and 5 km/h on dirt roads. Extreme caution should be exercised when
passing and overtaking other vehicles, avoiding obstacles and crossing large irregularities
in fields and dirt roads.
4.6 Maintenance and lubrication
•
The disc harrow must be cleaned of soil after each operation, followed by an
inspection of the parts and assemblies.
•
Re-tighten all screws after the first 4 hours of operation and periodically check
the tightness.
•
Lubricate the grease points on the hinge pins daily during the life of the machine.
Lubricate the bearings of the tubular shaft and the levelling discs every 25 operating
hours (this does not apply to the maintenance-free bearings of the discs - these bearings
do not require maintenance and lubrication).
•
When replacing worn components, use thread glue, original bolts and nuts.
•
Always ensure that screw connections are properly tightened.
NOTE! Periodic lubrication is a guarantee of the durability of the machine.
The service life and efficiency of the machine depend to a large extent on regular
lubrication. Mineral lubricants should be used for lubrication. Lubrication points must be
thoroughly cleaned before pressing in or applying grease.
4.7 Torques for tightening screws
Bolts and nuts should be tightened in the machine with the correct torque depending on
the strength class of the bolt and its thread size and pitch. Their respective tightening
torque values are shown in Table 3.
