Mechanical Parking Brake - Grillo FD 1500 2WD Uso Y Mantenimiento

CAUSE
- Advance speed too high for the grass height
- No consent given for blade engagement
- Cutting deck not parallel with the ground
- Blades not cutting correctly
- Advance speed too high for the grass height and
lawn conditions
- Grass duct blocked
- Blades not balanced
- Loose screws
- Insufficient oil pressure
To move the machine when the engine is switched off, you must unscrew two revolutions of the screw,
which is on the hydrostatic pump (fig. 26); pay attention because in this way the efficiency of the automatic
braking device is null, tow the machine at low speed and only for little distances, max 100 mt, to avoid the
hydraulic pump or the engine seizing.
IMPACT WITH A STONE OR SOME OTHER FOREIGN OBJECT
- Stop the machine.
- Turn off the engine and pull the parking brake.
- Lift up the lawnmower.
- Check the blade fixing screws and the deck state.
- Please check that in is not in the impeller or in the pipe.

MECHANICAL PARKING BRAKE

You need keep adjusted this device wire (fig. 27). The brake is engaged pushing the handle up; to unlock push
the push button and lower the handle.
Use always the parking brake even if when the engine is switched off the machine is automatically braking. The
engine keeps on even if the parking brake is pulled and the operator get off the driving seat.
PARKING AND EMERGENCY BRAKE ADJUSTMENT
The brake pedal must have about 3 mm of travel, before apply the brake hydraulic pump.
For this reason, it has got a slotted hole rather than the hole for the mechanical connection with the pump (fig. 27).
PROBLEM
REMEDY
Drop in engine performance while cutting
- Reduce speed
- Lift the cutting deck by a few notches
Engine stops when blades are engaged
- Check the PTO microswitch
- Operator sitting in driving seat
- Close the basket
- Engage the slow speed
Uneven and insufficient cutting
- Check tyre pressures
- Restore deck parallelism
- Check blades are fitted properly
- Sharpen or replace blades
- Adjust PTO belt tensions
- Reduce advance speed
- Remove the deck and empty the grass duct
- Check the engine revolutions, max 2800 G/1'
Vibration while working
- Balance blades or replace them if damaged
- Check and tighten the screws that retain the blades,
the engine and the chassis
Oil light comes on
- Check oil level and top up if necessary
- Change oil filter
IMPORTANT
20