Grillo FD 1100 4WD Manual De Montaje, Uso Y Mantenimiento página 14

SHARPENING THE BLADES
For the cutting deck check and maintenance proceed as follows:
1) lift the cutting deck hydraulically;
2) release the two side shock absorber (fig. 21);
3) lift the cutting deck by hand and hitch it with the special lever (fig. 22).
You do not need to release the cardan joint. Before starting the machine, make you sure that the cardan joint is well
connected and that the stop push button is protruding.
A blunt blade pulls at the grass giving it an unsightly appearance, the cutting edges of the blades must therefore be
kept sharp at all times. As the blades wear they lose their cutting efficiency and tend to become unbalanced,
causing the lawnmower to vibrate; sharpen both blades uniformly.
When you substitute the blades, it is compulsory to substitute also the screw and respective nut (fig. 23). Do not
lock the blades terminals: they must be without play, but free to float if they knock against something. To
remove a blade, hold it firmly using safety gloves and unscrew the fixing plate and the central screw. Caution: the
right blade central fixing screw has a left-handed thread (fig. 11, ref. A). Caution! Always replace damaged or bent
blades; never try to repair them! ALWAYS USE ORIGINAL BLADES!
ADJUSTING THE CUTTING DECK
An even deck is essential for achieving a uniform cut over the whole lawn. With the lawnmower on a flat surface,
check the tyre pressures, check the distance of the cutting deck edge from the ground and act on the tie rod (fig. 24,
ref. A) and on the adjusting screw to put it parallel to the ground. If a satisfactory parallel set up cannot be achieved,
contact an Authorised Service Centre. To remove the deck from the mower, unhook the two side shock absorber
(fig. 21) and the two pins (fig. 24, ref. B). Attention! When refitting the deck always remember to reconnect the
cardan joint.
PTO BELTS
Attention! These belts are special, USE ORIGINAL BELTS.
To replace them, loosen the tie rod and remove the clutch locking screw.
To set the tension use a no. 13 spanner to turn the nut that adjusts the tension spring (fig. 5, ref. A).
The spring must be compressed at 75 mm length (see red arrow).
GRASS CATCHER LOCK ADJUSTMENT IN ORDER TO MAKE IT FIT WITH THE LOADING ACCELERATOR
OUTLET CHUTE
For good results, it is important to have the perfect coupling between the grass catcher and the loading accelerator
outlet tube when the grass catcher is closed. To this purpose, the machine is provided with different adjustment
devices with the following practice.
1) Put the grass catcher in closed position.
2) Shorten or lengthen the side hydraulic jacks' stem which let the grass catcher tip. This operation can be put into
practice by unscrewing or screwing the screw set at the bottom of the jacks' stem.
3) At last, adjust the rubber pads in order to not let the grass catcher in closed position swing from right to left
when working with high speed and on irregular ground (fig. 25).
GRASS CATCHER LOCKING HOOK
The grass catcher locking hook is adjusted with the respective screw (fig. 26, ref.A). Please leave a small, 2 mm
clearance to make the hooking easier when closing.
Translation of the original instructions
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