Grillo GF1 Uso Y Mantenimiento página 13

CUTTER BAR
The cutter bar attachable to this machine is with central control (fig. 11). Its strong construction and high
performances make it the ideal means to mow small pieces of land, parks and gardens.
The cutter bar must be fixed to the attachments coupling just by means (fig. 4): by the lever.
MAINTENANCE
– Check the blade holders are always well adjusted (fig. 12, F) but not too tight because the engine might
stop once the cutter bar is engaged and the cutter bar could be damaged by overheating. The blade
must turn by operating the hand-wheel.
– Check the blade is well sharpened.
– Sharpen the cutting edges on the upper side (fig. 13).
– Check the blade movement is always properly tightened and lubricated while working. Lubricate with
each cutter bar (fig. 14).
– When work is finished the cutter bar must be washed and lubricated.
SAFETY DEVICE FOR CUTTER BAR (FIG. 18)
On the GF1 cutter bar a safety device has been assembled in order to protect the cutter bar itself if a foreign
body suddenly stops the blade. If, after a certain period of work, and after several sudden stops on the
blade, the cutter bar does'int work as well as before, it is necessary to add one or two schims 0,5 mm.
under the washer (see the picture below in order to adjust the spring pressure on the couplings.
Actions:
1) Disconnect the cutter bar from the machine using the attachment blockage lever (Fig. 4).
2) Unscrew the screw nr. 1.
3) Estract the wascher nr. 2.
4) Add one or more shins 0,5 mm.
ROTARY CUTTER
This implement (fig. 15), specially studied for parks and gardens maintenance, has a cutting width of 50
cms. Its high power and the driving wheels allow to operate in all conditions without tireing the operator.
The rotary cutter is attachable to the implement frame instead of the cutter bar.
The transmission of the movement to the blade is obtained by a bevel gear pair. The lawn mower is
equipped with a releasing device on the coupling, in order the machine is not damage.
Cutting height can be regulated adjusting the position of the little wheels of the rotary cutter, or of the lateral
rams, thus changing the blade height from the round (fig. 16).
MAINTENANCE
Keep the lawn mower blade clean and well sharpened: cut will be better and the engine will not strain.
Always tighten the fixing bolt well when fastening or removing the blade (warning: the bolt is left-handed).
Check gearbox oil level every 50 hours removing the plug situated on top of the box and make sure oil
level reaches at least 50 mm (2") from the hole.
If necessary add 85W/90 lubricant. Replace oil once per year.
SNOW THROWER
This implement, specially designed for this machine, is very helpful to clear of snow yards, driveways, etc.
(fig. 17).
It consists of a turbine rotary unit enclosed in a special casing opened on the front side which, turning at
a high speed, collects snow and throws it through a pipe whose inclination can be adjusted.
Snow may be thrown 8-10 mt far in any desired position.
The snow thrower is attachable to the flange for attachments and it is fixed by the specific lever.
I M P L E M E N T S
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