Grillo FD900 4WD Manuel D'utilisation page 12

HOW TO START WORKING
1) Adjust the cutting height using the button (fig.1 n° 12).
2) Adjust the seat (fig. 1 n° 15, 16, 17).
3) Speed up the engine half way (fig. 1 n° 6). Do not engage the blades with the engine at maximum r.p.m, but
bring it to half speed and then engage the PTO (fig. 1 n° 26). Attention: While mowing the button has to be kept
in floating position (that is pushed forward). Always engage the blades outside the area to cut, to clean both the
cutting deck and the load chutes and to avoid putting too much strain on the clutch.
4) Gently press the forward pedal (fig. 1 n° 1) and start work. Use the pedal next to it (fig. 1 n° 2) to engage the
reverse gear.
5) The emergency brake pedal (fig. 1 n° 3) must be used only if there is a real emergency. To stop during normal
use of the machine just release the forward and/or reverse pedals (fig. 1 n° 1 e n° 2).
6) When the grass catcher is full, a sensor automatically disengages the blade rotation to avoid clogging up the
load chute; to lift and empty the grass-catcher use the lever on the hydraulic distributor (fig. 1, n° 8).
7) To start work again, disengage the PTO and then switch it on again (fig. 1 n°26).
HOW TO QUIT WORKING
Once mowing has been completed, disengage the blades. To stop:
1) Release the forward pedal (fig. 1 n° 1 or n° 2).
2) Set the throttle lever to the minimum.
3) Lower the cutting deck to the ground
4) Stop the engine by turning the key in the "0" position and engage the parking brake (fig. 1 n° 3 and 5).
GUIDELINES FOR EFFECTIVE USE
The machine can also be used under harsh conditions without any risk of jamming up. Certain measures must be
taken and all devices must be adjusted properly.
1) Before starting work check that the deck and the load chute are perfectly clean without any dried grass or soil.
Check that the load chute has been mounted properly and fixed through the two red safety locks (fig. 13).
2) Check the ground before mowing, that there are no stones, sticks or foreign objects.
3) While mowing keep the engine at maximum rpm, adjust the speed to suit the height of the grass. Be careful
when coming across tall thick clumps of grass, slow down.
4) Regularly sharpen the lawnmower blades; the cut will be better and the engine will not be strained too much.
5) After having emptied the grass-catcher, always engage the blades some metres before getting into the grass to
cut, so that both the cutting deck and the load chute are cleaned and the clutch is protected.
6) Keep the radiator grid clean (fig. 9).
7) Keep the grid at the inside of the grass catcher clean: to get it out, remove the grass catcher door safety lock
pin (fig. 12) and use the lever (fig. 11);
8) If the grass is wet or very high, do not cut in the lowest position, but at a mid-way height.
9) Check the tension on the belts activating the PTO; using the adjusting screw if necessary (fig. 6).
10) Check that the blades are not worn, especially the wing that push the grass into the load chute.
11) Under normal cutting conditions, the full grass-catcher micro-switch must be adjusted into horizontal position. It
is recommended to adjust this micro-switch inclined towards the bottom of the grass-catcher in case of wet and/or
very high grass, while it should be inclined towards the upper part of the grass-catcher in case of short and/or dry
grass.
12) Check that no foreign objects have clogged the load chute.
13) Check the rotation of the duct inside the grass catcher.
14) Check that the blades disengage automatically when the grass catcher is full; to do this, turn the ignition key,
turn on the panel without starting the engine, engage the PTO switch (fig. 1 no. 26) and touch the lever fitted on the
duct sensor. The PTO should now disengage.
15) Check the engine revs. (max. 3235 rpm empty).
16) Always mow with the engine at maximum rpm; if the engine rpm drop, reduce the forward speed for a while, to
allow the engine to reach the right level again.
17) Check that the blades are properly mounted.
18) Check that the entry duct fits correctly and that it is aligned inside the load chute.
19) The mower FD900 is a hydrostatic machine and consequently it will absorb more power when cold, but after a
few minutes its efficiency will be at optimal. We inform you that the variable displacement pump and the hydrostatic
motors are of high quality and efficiency.
20) CAUTION! Do not travel with the cutting deck raised. Only raise it to get over obstacles, mount on pavements
or on kerbs. It is compulsory to travel on public highways with a type-approved machine, fitted with a lighting
system, a nameplate and with the cutting deck raised.
Translation of the original instructions
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