breviglieri MekFold 180, Operating And Maintenance Manual, Page: 31 / 108

MekFold
180
- 29 -
macchine agricole
The rotors turn in an uneven way
▪
Make sure that the driveline clutch is regulated correctly.
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Excessively elastic clutch springs. Replace the springs.
The gearboxes overheat
▪
Check the oil level and top up if necessary.
The driveline clutch overheats
▪
Check the clutch plates for wear. Have them replaced by an authorized workshop if necessary.
▪
Excessively elastic clutch springs. Replace the springs.
4.5.2 HITCHING/UNHITCHING THE HARROW UNITS
The hydraulic circuit of the machine is designed to automatically and sequentially hitch and unhitch the two harrows for road
transport, by operating two clamps with a control situated near the driving position.
4.5 TOOLS
The blades fitted on the implement are suitable for soil of a normal consistency. Check them daily to make sure that they are in a
good condition and not worn. If the blades should accidentally bend (or break) during work, they must be immediately replaced.
Make sure that the new blades are mounted in exactly the same positions as the old ones. If several blades must be replaced, it
is advisable to demount and remount them one at a time in order to avoid positioning errors. The sharp side of the blades must
point towards the direction in which the blade rotor turns.
DANGER
Blade replacement is a dangerous operation.
Proceed in the following way to change the blades:
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Park the tractor on a flat surface with the machine hitched, then raise the machine with the power lift;
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Insert two strong bearing stands at the sides of the machine;
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Lower the machine on to the stands, turn off the tractor engine and apply the parking brake.
WARNING
The head of the bolts fixing the blades must be placed on the same part of the blade itself and the nut/double nut on the
blade-holder support. Comply with the driving torque values given in the table below. If blades must be changed, make sure
that the new ones are mounted in the same positions as the old ones.
DRIVING TORQUE VALUES (Nm)
Class 6.6 8.8 10.9 12.9
M8 x 1 15 26 36 44
M10 x 1,25 30 52 74 88
M12 x 1,25 51 91 127 153
M14 x 1,5 81 143 201 241
M16 x 1,5 120 214 301 361
M18 x 1,5 173 308 433 520
M20 x 1,5 242 431 606 727
M22 x 1,5 321 571 803 964
M24 x 2 411 731 1028 1234
DANGER
If the tines clog, it is strictly forbidden to attempt to clean the machine whilst it is operating. First disengage the PTO, stop
the tractor and engage the parking brake. Wait until all moving parts have come to a complete standstill, then proceed with
the cleaning operations with the utmost care.