Grillo FD 450 - Safety Devices; Electronic Safety; Parking Brake; Roll-Bar

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13. SAFETYDEVICES
13.1 ELECTRONICSAFETY
On the FD 450, an electronic control unit receives signals from the
microswitches located on the seat, forward pedal, parking brake and
grass catcher. Based on these signals, the control unit generates logic
blocks for the safety of the machine and the operator.
Specically,alwaysrememberthat:
• The engine:
- Switches off if the operator gets up from the seat with the parking
brake off;
- Switches off if the travel pedal is pressed with the parking brake
on;
- Will not start if the driver is not seated in the driver’s seat, unless
theparkingbrakehasbeenappliedrst;
- Will not start if the drive pedal is not in NEUTRAL position;
• The PTO:
- Does not activate if the parking brake is applied;
- Does not activate if the grass catcher is open or full.
13.2 PARKINGBRAKE
The FD 450 is equipped with a hydraulic drive system, therefore in order
tobrakeitissufcienttoreleasethetravelpedal.Toengagetheparking
brake,pullthelever(g.21/A)andpositionitinthehousing.Torelease
the parking brake, simply remove the lever from the housing and bring it
forward(g.21/B).Iftheparkingbrakeisappliedandthetravelpedalis
depressed, the engine shuts down.
In this condition the blades cannot be engaged.
With the parking brake applied, it is possible to leave the driver’s seat with
the engine running.
A B
Fig. 21
13.3 ROLL-BAR
CAUTION:inordertoavoidseriousinjuriesduetothemachine
overturning,keeptheroll-barraised(g.22)andusethesafetybelt.
In addition, make sure that the seat is securely fastened via the
securinglatchesbehindthebackrest.
• Roll-over protection is not ensured if the roll-bar is in the lowered
position;
• Do not operate the machine on uneven terrain or on slopes with the
roll-bar in the lowered position;
• Only lower the roll-bar when absolutely necessary;
• Do not wear the safety belt when the-roll bar is lowered;
• Drive slowly and carefully;
• Raise the roll-bar as soon as conditions permit;
• Be careful when working under canopy. Ensure that there are no
low branches or other obstacles that could become entangled with
the roll-bar.
Fig. 22
To lower the roll-bar, proceed as follows:
1. Parkthemachineonaatsurface;
2. Disengage the PTO, lower the cutting deck and engage the parking
brake;
3. Switch off the engine and remove the key;
4. Removethetwoboltsshowning.23/A,rotatetheupperpartof
thearchdownwards,thenrettheboltsasing.24/A;
5. Removetheboltsshowning.24/B,rotatethemastsofthearch
downwards,thenrettheboltsasing.25/C.
A
Fig. 23