Useful Tips; Tines; Gearbox - breviglieri Zappatrice b60pl Instrucciones De Empleo Y Mantenimiento

The turning tines could throw up stones or other sharp ma-
terials as they work.
Constantly check to make sure that there are no bystanders,
children or domestic animals within the range of action of
the machine.

4.5.2 USEFUL TIPS

Depth too shallow
- Adjust the depth skids again.
- Advance more slowly. The tractor power could be insufficient.
- Further runs are needed if the soil is too hard.
- The tines roll over the soil instead of penetrating it: advance
more slowly.
Soil broken up too much
- Raise the levelling blade.
- Increase the ground speed.
Soil not broken up enough
- Lower the levelling plate.
- Reduce the ground speed.
- Do not work in soil that is too wet.
Rotor clogged
- Soil too wet to work.
- Raise the levelling plate.
- Reduce the ground speed.
- Do not work where the grass is too tall. If necessary, remove
any material that has built up at the sides of the rotor to prevent
overheating.
The machine jolts over the ground or vibrates
- Foreign bodies blocked between the tines.
- Tines incorrectly mounted without the helical positioning or that
penetrate into the soil with the blunt edge first.
- Worn or broken tines.
- Rotor misshapen owing to blows received during work from for-
eign bodies in the central part.

4.6 TINES

The tines with which the machine is equipped are suitable for
cultivation work in soil of normal consistency. Check the tines each
day to make sure they are not worn or broken. If the tines should
accidentally bend (or break) during work, they must be immedi-
ately replaced by mounting new ones in the identical position.
If several tines must be replaced, it is advisable to demount and
mount one tine at a time to avoid positioning errors.
The tines are available in different shapes:
- helical shaped for normal and tenacious soils;
- square shaped for loose and normal soils.
The cutting edge of the tines must always point in the same direc-
tion as the rotor turns, according to the phase depicted in Fig. 1
ref. 11.
Tine replacement is a dangerous operation.
Proceed in the following way to replace the tines:
- Park the tractor on a flat surface with the machine hitched, then
raise the machine with the power lift;
- Insert two strong bearing stands at the sides of the machine;
- Lower the machine on to the stands, turn off the tractor engine
and apply the parking brake.
DANGER
DANGER
b60pl
The heads of the bolts that fix the tines must by on the side
of the tines themselves while the nut and relative washer must
be on the flange side.
Comply with the driving torque values given in the table be-
low.
If tines must be replaced, make sure that the new ones are
mounted in the same positions as the old (see 11 Fig. 1).
DRIVING TORQUE VALUES
Class
M8x1
M10x1,25
M12x1,25
M14x1,5
M16x1,5
M18x1,5
M20x1,5
M22x1,5
M24x2
If the tines/blades 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 stand-
still, then proceed with the cleaning operations with the ut-
most care.

4.7 GEARBOX

The gearbox allows the machine to work with the rotor at various
speeds. Various pairs of gears are available (see table below).
The soil can be broken up to various extents according to its na-
ture, the amount of moisture it contains, the ground speed, etc.
GEARBOX - 540 rpm PTO
17 19
210
*
* The asterisk stands for rotation speed engaged.
Proceed with these simple operations to change the speed of the
rotor:
- Unscrew the screws that fix the rear cover of the gearbox and
then remove the cover. Make sure that no oil spills out. This can
be prevented by slightly tilting the machine forwards.
- Remove the gears from the shafts.
- Insert the required pair of gears on to the shafts.
- Fit the cover back on.
Check the gears since gears from different pairs cannot be
mounted.
Only use the indicated gear pairs.
The higher the rotor rpm rate, the more the soil will be broken up,
but the power draw and tine wear will also be greater. It is always
advisable to use the lowest possible rotation speed able to till the
soil in the correct way.
- 21 -
WARNING
6.6 8.8
15 26
30 52
51 91
81 143
120 214
173 308
242 431
321 571
411 731
DANGER
20 16 19 17
294 263
10.9 12.9
36 44
74 88
127 153
201 241
301 361
433 520
606 727
803 964
1028 1234
16 20
188