Grillo G84 Manuel D'emploi Et D'entretien page 16

Translation of the Original Instructions
ADJUSTABLE FURROWER
This implement is specially designed for preparing furrows for sowing and irrigation. It is mounted
using the frame for attachments like a plough on the back of the gearbox. The furrow width can be
regulated from a minimum of 10 cm to a maximum of 30 cm, by changing the position of the two
wings. The depth can be varied from 10 to 20 cm. When working on particularly hard soils, till
before furrowing. Better results can be achieved by fitting the 5.00-12 tyres and if necessary the
wheel-weights which increase the wheel grip (fig. 10).
CUTTING BAR
The cutting bar which can be attached to the walking tractor has a central control. Its strength and
high performance make it the best way of mowing small pieces of land when it is not convenient to
purchase a sickle mower which would remain unused for most of the year, while a walking tractor
can be used with other implements. The cutting bar is attached to the walking tractor implement
frame instead of the rotary tiller. The handlebar must be turned 180towards the engine. Before
turning the handlebar engage first gear, then release the drive levers. Once the handlebar has
been turned, fit these levers back into their supports.
Once the handlebar has been turned, the operator can use all of the gears like in the walking
tractor version. To engage the PTO the safety system preventing the reverse gear and the PTO
from being engaged at the same time (which is then necessary with the rotary tiller), has to be
deactivated. The operator has to remove the screw (fig. 2).
Important: if the rotary tiller is connected again, the safety system has to be brought back
to its original working condition. Grillo bears no responsibility in case of non-compliance
with this rule (fig. 2 – fig. 2A).
Maintenance: grease the cross pins every 8 working hours through the grease nipples on the
swinging crank. Grease the cutting bar swinging bushing every 50 working hours through the
grease nipple under the swinging protection. Keep the blade ledger plates properly adjusted. They
must be neither too tight, so that they block the blade, nor too loose so that there is too much
clearance between them and the blades. To adjust the ledger plates in both directions loosen the
locking bolts (fig. 12) and adjust the pressure screw. The ledger plates should be replaced when
worn even if they are still able to apply pressure against the blades. Adjust the freeplay between
the blade and the strip by loosening the screws fixing the plates pressing the strip and moving the
strip forward until it touches the bar which supports the nailed blade section. Then re-tighten the
pressing plates. To remove the blade take off the L-shaped blade coupling by loosing the two
screws (fig. 13, n. 3) and slip off the blade. Take care to tighten the fixing screws of the coupling
after assembling the blade again. Always use sharp blades: the machine will be subject to less
strain and its working life will be longer. Clean the cutting bar after every working day, removing
any remaining pieces of grass or earth; frequently that all screws are tight.
SNOW THROWER
This implement (fig. 14) has been especially designed for this particular walking tractor. It is very
useful for clearing snow from yards, driveways, etc. It consists of a turbine rotary unit enclosed in a
special case open at the front, which rotates at high speed, collecting the snow and throwing it
along a pipe. The pipe angle can be adjusted to throw the snow in any direction to a distance of 8 –
10 metres. The snow thrower is fixed to the implement flange using two nuts. The handlebar must
be turned through 180towards the engine; for this operation follow the directions outlined above
for the cutting bar. To engage the snow thrower the safety system preventing the reverse gear and
the PTO from being engaged at the same time (which is then necessary with the rotary tiller), has
to be deactivated. The operator has to remove the screw (fig. 2).
Important: if the rotary tiller is connected again, the safety system has to be brought back
to its original working condition. Grillo bears no responsibility in case of non-compliance
with this rule (fig. 2 – fig. 2A).
The snow thrower is 70 cm wide and can clear snow up to 40 cm deep. Wheel weights or wheel
chains should be used to obtain a better performance. If the snow is very wet, keep the ejection
pipe turned forward to avoid obstructions at the outlet. The two side skids must be adjusted so that
they just skim level ground (asphalted streets) or keep the snow thrower high if the ground is
uneven. Maintenance: when work is over, remove any snow left in the snow thrower so it cannot
freeze and block the turbine. Often check the oil level in the central box. Do not clean the
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