Rear Rollers; Stopping The Machine - breviglieri teknofold 450 Manuel D'utilisation Et D'entretien

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.
4.9 GEARBOX
The tine rotors can spin at various speeds, depending on the gear
pairs mounted in the gearbox. It also allows the soil to be broken
up to various degrees depending on its nature, the amount of
moisture it contains, the ground speed, etc.
Only use the pairs indicated in the table:
25
GEARBOXES - PTO 1000 rpm
36
A (p.d.f.)
335
B
Throttle (rpm)
The faster the rotors spin, the more the soil is crumbled, but
tractor power draw and blade wear will also be greater. You are
advised to use the lowest rotation speed able to work the soil
in the required way. Carry out these simple operations in both
gearboxes to vary the speed of the rotors:
▪
Remove the screws that fix the rear cover of the gearbox
(19 Fig.1) and take off the cover. Take care, as oil could
spill out
▪
Remove the gears from the shafts
▪
Fit the required pairs of gears on to the shafts
▪
Fit back the cover and re-tighten the screws
Make sure you use the right gears as gears of different pairs
cannot be mounted.
4.10 REAR BAR
To level and crumble the soil to a greater degree, the harrow has
a levelling bar positioned behind the tines. It can be adjusted in
height by means of crank screws. It is advisable to start work
with the bar in the upper position and to then adjust it to the
required setting. Make the adjustments by keeping the bar at the
same distance from the soil as far as possible. Avoid using the
bar at depth as it could be damaged. Whenever the position
of the rear roller must be changed, adjust again in order to
skim over the ground.

4.11 REAR ROLLERS

The machine can be equipped with various types of roller. The
main ones are: Packer/Crumble roller, Cage roller, Spiked roller.
Packer/Crumble roller
▪
This is used to crumble the soil worked by the tines to a
further degree and to guarantee a compact surface, opti-
mum for seeding. It has a bearing effect if the seed drill is
mounted in a combined configuration. It is excellent for
dry and hard soil.
Cage roller
▪
This is used for soil of medium consistency and when the
degree of humidity is low. It prepares the soil for seeding
but does not compact the surface.
Spiked roller
▪
This is used for damp, clayey soils and in difficult situa-
tions. It does not compact the soil but levels it at the rear
of the machine.
26
35
359

4.12 STOPPING THE MACHINE

At the end of the job, the operator must:
▪
Disengage the tractor PTO
▪
Close the machine behind the tractor
▪
Lower the machine to the ground
▪
Stop the tractor and engage the parking brake
▪
Make sure that all parts of the machine have come to a
standstill
Only after the above mentioned operations have been carried
out may the operator leave the tractor unattended.
4.12.1 PARKING
To park the machine and unhitch it from the tractor, the ope-
rator must:
▪
Make sure that no one is standing or crossing the place
where the machine will be parked
▪
Make sure that the place in which the machine is to be
parked is suitable, flat and uncluttered
▪
Drive to the area where the machine is to be unhitched
▪
Brake the tractor
▪
Lower the bearing stands
▪
Completely lower the machine to the ground
▪
Stop the tractor and engage the parking brake
▪
With the tractor stopped, its engine off and the compo-
nents at a complete standstill, operate the levers of the
hydraulic circuit so as to relieve the pressure from inside
the pipes. This will allow you to re-connect the quick
couplings with greater ease
▪
Disconnect the quick couplings
▪
Remove the driveline from the tractor's PTO and rest it
on its bracket
▪
Disconnect the top link rod
▪
Disconnect the power lift links
▪
Switch on the tractor engine and move away
The place in which the machine is parked must be:
▪
Dry
▪
Sheltered from adverse weather conditions
▪
Guarded or locked up to prevent the machine from
being accessed by animals, children or persons who are
not trained to use it
The folding harrow must always be parked in the open po-
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teknofold 450
WARNING
WARNING
sition.