Electrical System; Important - Grillo MD 24 AWD Manuel D'utilisation

– Blades unbalanced
– Fastenings are loose
– Pushing the PTO button, blades do not engage

ELECTRICAL SYSTEM

The electrical system is protected by a 20A fuse which cuts out the entire electrical system if blown.
After finding and repairing the fault, replace the fuse with another of the same rating. Never
replace the fuse with one of a different rating. The electrical system fuses are located behind the
driver's seat (fig. 30, ref. A). If problems persist after all procedures described above have been
carried out, contact the nearest authorized service centre. Never attempt to make difficult repairs
unless you have the necessary equipment and technical expertise. The micro-switch on the forward
lever (fig. 31) detects if the machine is in neutral position.
ELECTRIC CONTROL UNIT
An electric control unit is located under the front frame (fig. 3) that controls all the electrical functions
of the machine such as PTO, micro-switches and start-up consent.

IMPORTANT!

– Take care not to reverse the battery polarity.
– Never operate the mower without the battery (fig. 30), since it is equipped with a charge regulator.
– Take care not to cause short-circuits that could damage both the electric control unit and the
charge regulator.
THE MACHINE DOES NOT REMAIN IN NEUTRAL POSITION
Set the forward lever into neutral position and adjust the rod located under the seat on the right side,
by loosening or fastening it until both wheels stop (fig. 32). This procedure must be carried out with
wheels lifted from the ground. To adjust the speed in both forward and reverse gears use the screws
(fig. 31).
END OF WORK
After mowing, disengage the blades and drive back with the cutting deck in the highest position. To
stop, set the forward lever into STOP position, set the throttle lever at minimum rpm, switch off the
engine by turning the key to STOP position (fig. 1, n. 1), set the cutting deck at the lowest position and
engage the parking brake.
CLEANING
Clean the outside of the mower after each use. Use compressed air. Do not wash neither the engine
nor the electric components of the machine with a high-pressure water jet machine.
MD24/MD28 AWD/ Translation of the original instructions
Vibrations during operation
Irregular PTO functioning
– Check the tension of the cutter deck -
engine belt
– Balance blades or replace if damaged
– Check and fasten the blade fixing screws as
well as the fixing screws of the engine and
frame.
– Check the battery voltage (it must no be
inferior to 12,5 volt)
– Adjust the
electromagnetic clutch at 0,3 mm using a
feeler gauge.
16
three screws of the