Grillo FD 450 - Useful Rules for Correct Use; Sloping Terrain and Differential

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washing the cutting deck
Only and exclusively for washing the cutting deck, and in any case
observing all other general safety instructions, this operation must be
carried out with the engine running.
Themachinemustbeplacedonasolidoor,thenlowerthecuttingheight
totheminimum,plugtheconnectionnozzle(g.13)intothewaterhose
and allow the water to run for a few minutes with:
• The operator sitting in the driver’s seat;
• The engine running;
• The forward pedal in NEUTRAL;
• The blades engaged.
Whennished,cleanthegrasscatchergridaswell.
After using water, run the transmissions for a few minutes, including the
cutting deck transmission, to ensure that all components have dried.
Fig. 13
11.6 USEFULRULESFORCORRECTUSE
The machine can work even under severe conditions without clogging
problems. A few measures must be taken and all devices must be
correctly registered.
• Before starting work, check that the cutting deck and the loading
chute are perfectly clean and free of grass and dirt;
• Check that the loading chute is correctly positioned and secured
withthetwoclamps(g.14);
• Check the ground before mowing: ensure there are no stones,
twigs, roots or foreign bodies;
• When mowing, keep the engine at full revs and adjust the forward
speed according to the height of the grass. Be careful and slow
down when coming across tall or dense grass;
• Check that the blades are not worn, the cutting edge is sharp and
the vanes are not damaged. Sharpen the mower blades frequently;
the cut will be better and the engine will run at lower consumption
(ref.16.4 Sharpening the blades).
Fig. 14
IMPORTANT:thebladesmustbettedcorrectly.Donotinvert
thepositionoftheblades.
• Keep the grid inside the grass catcher clean: to remove it, manually
open the cover of the grass catcher and unscrew the locking knob
(g.5);
• If the grass is wet or very tall, do not mow with the cutting deck in
the lowest position, but rather set it to an intermediate position and
proceed at a moderate speed;
• Engage the blades a few metres before entering the area to be
mowed.
 CAUTION: only use the hydraulic lift of the cutting deck for
shorttraveldistances,toovercomeobstacles,tosteponkerbsor
curbs.
11.7 SLOPINGTERRAINANDDIFFERENTIAL
Steep terrain should be negotiated in uphill/downhill direction as far as
possible, taking great care when changing direction and ensuring that the
wheels uphill do not encounter any obstacles (stones, branches, roots,
etc.) that could cause the machine to lose control. If the drive wheels
tend to slip, use the hydraulic control to lift the cutting deck slightly in
order to put more weight on the drive wheels and thus have more traction.
Consider the various situations and be careful on damp ground and wet
grass as the machine may slip. When driving downhill, start at low speed
and avoid driving over dry or cut grass as the wheels may lose grip.
It is possible to engage the differential lock by pressing the pedal to the
leftofthesteeringcolumn(g.15/12)intheconditionofwheelslip,orto
load the lawnmower on vehicles with ramps. Only engage the differential
lock if necessary
 CAUTION: avoid slopes that are too steep; comply with the
safetylimitssetoutinthemanualmax12°(21%).
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Fig. 15