Grillo G84 Manuel D'emploi Et D'entretien page 17

Translation of the Original Instructions
attachment when the engine is running. Attention, danger! Never touch the snow thrower
while it is working.
IMPORTANT: While mounting the different attachments make sure the machine flanging and the
attachment flanging are perfectly aligned. First hand-tighten the bolts then use a wrench to make
them press on the flanging (fig. 4F).
PLOUGHS
The ploughs (fig. 15) designed for this walking tractor have been especially developed to obtain
good ploughing without straining the operator. The models available are a single-share plough and
an 180roll-over plough. The latter is especially suitable when working backwards and forwards,
such as along rows of vines or fruit-trees. The depth of the furrow obtained may vary from 10 to 15
cm depending on the terrain. Better results are obtained by fitting the 5.00-12 tyres and if
necessary the wheel-weights which increase the wheel grip.
ROTARY CUTTER
The 75 cm rotary cutter (fig. 16) is designed for the maintenance of grounds with too high grass.
The high power available, the driving wheels, the working speeds and the reverse gear allow
operation in the most difficult conditions without straining the operator and with considerable time
saving. The rotary cutter is fixed to the implement flange. The handlebar must be turned through
180towards the engine (to carry out this procedure follow the instructions outlined above for the
cutting bar). To engage the rotary cutter 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 blade is driven by means of a bevel gear pair and is equipped with a release mechanism
and a brake blade. To adjust the cutting height vary the position of the rotary cutter wheel, or of the
lateral rams.
CAUTION: Rotating blades are very dangerous, never put hands or feet under the rotary
cutter. Do not clean the attachment when the engine is running.
Maintenance: Keep the lawn mower blade well sharpened: the cut will be better and the engine
will not strain. Check the gearbox oil level every 50 hours, removing the cap on the top, and make
sure that the oil level is within 50 mm of the hole; if the level is lower add 80W/90 (API GL5 US-
MIL-L-2105D) gearbox oil. Change the oil once a year.
IMPORTANT: These blades are made of a special steel subjected to heat treatments. Never
weld blades if broken or cracked, because they could break and be flung away becoming
therefore highly dangerous for people and objects around.
TOWED TRAILER
The towed trailer is very useful for short hauls around the farm. It is easy to handle, compact and
very quickly hitched to the walking tractor. The trailer can be attached directly to the machine by
hitching it to the special towing bar (fig. 17) leaving the tiller in place. Max. load: 300 kg on even
grounds. Do not use the trailer on slopes greater than 5%. Passengers are not allowed. The
trailer cannot be used on public roads.
WHEEL-WEIGHTS
These are mounted on the wheel rims and fixed with two of the four nuts which fix the wheels
themselves. They increase the weight of the machine and thus its adherence to the ground, and
their use is recommended when working with the plough, the adjustable furrower, and even the
rotary tiller and the trailer if special performances are required (fig. 18).
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