Grillo FD 450 - Page 28

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full grass catcher Microswitch
Thefullgrasscatchermicroswitchisttedinsidethegrasscatcherand
is attached to an electric gear-motor that provides a swinging movement
(g.67).Itsendsasignaltoautomaticallydisengagethebladeswhenthe
grass catcher is full
It is important to adjust the position of the microswitch according to the
type of grass to be cut, to ensure that the grass catcher is completely
lled.Undernormalcuttingconditions,thefullgrasscatchermicroswitch
should be adjusted to the middle position. It is advisable to set it at a
downward angle for wet or very tall grass, and upward for short or dry
grass.
Fig. 67
neutral position Microswitch
Amicroswitch(g.68)isattachedtothetravelpedalsignallingtheneutral
position of the machine.
Fig. 68
parking brake Microswitch
Theparkingbrakeleveractivatesamicroswitch(g.69)thatsignalsthat
the brake is applied and allows the engine to keep running even if the
operator leaves the driver’s seat.
Fig. 69
operator presence Microswitch
The operator presence microswitch is located under the seat and detects
the presence of the operator when seated in the driver’s seat
hour Meter
Thehourmeter(g.70/13)islocatedonthedashboardandindicatesthe
hours the machine has worked.
• Pressing the button below the screen once will display how many
hoursremainuntilthenextengineoilchange(OILashing,followed
by the number of hours remaining);
• Pressing the button again will display how many hours remain until
thenextlubricationatthegreasingpoints(LUBEashing,followed
by the number of hours remaining);
• Pressing the button again will return to the working hours screen.
When there are 10 hours left for oil / 5 hours left for grease, the OIL /
LUBE signs will start to ash.They will continue counting the missing
hours, until they show the OIL NOW / LUBE NOW writing: at this point it
is advisable to carry out maintenance in a short time.
Once maintenance has been carried out, to reset the hour count go to the
screen to be reset (e.g. OIL) and hold down the button until a series of
zeros (000000) appears.
The count is automatically reset.
13
Fig. 70
electronic control unit
Inside the driving column is an electronic control unit (g. 71), which
processes all the electrical functions of the machine such as PTO,
electrical push-buttons, safeties and engine start consent.
Its malfunction can cause problems with the electrical drives of the
machine.
Fig. 71