Grillo FM13.09 Emploi Et Entretien page 16

MECHANICAL PARKING BRAKE
You need to keep the parking brake device wire (fig. 27, ref.A) adjusted. The brake is engaged by pushing the pedal
(fig. 1 n°3) and by putting the block (fig. 1 n°5) in. To release the brake push the same pedal (fig. 1 n°3) again.
Always use the parking brake even if when the engine is switched off the machine is automatically braking.
The engine keeps on even when the operator leaves the driving seat, if the parking brake is engaged and the
blades are disengaged.
PARKING AND EMERGENCY BRAKE ADJUSTMENT
The brakes adjusting devices are under the platform (fig. 27, ref. A).
The drum brakes are on the front wheels, pay attention that the cable does not hit the wheel (fig. 28).
ELECTRICAL SYSTEM
The electrical system is protected by fuses which, if blown, cause the whole electrical system to cut out. These are
located under the bodywork, opening the box at the base of the seat (fig. 29). There are two main fuses (fig. 30): the
general one with 50 A/h, and the one that feeds the ignition key with 40 A/h. Once the fault has been located and
repaired, replace the blown fuse with one of the same rating. Never replace a fuse with another of a different
rating.
If the electrical problems still persist even after having changed the fuses, contact the Authorised Service Centre.
Never attempt to carry out complex repairs without having the necessary means and technical knowledge available.
Some relays are inside the box (fig. 31).
HOW THE MAIN ELECTRICAL SYSTEM DEVICES WORK
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A sensor is fitted on the radiator (fig. 15, ref. B). It senses the cooling liquid temperature. When the cooling
liquid temperature goes beyond 88°C, the sensor sends a signal to the control unit (fig. 31) which starts the
automatic cleaning cycle, inverting for some seconds the radiator fan rotating sense. It is possible to carry out
the cleaning cycle also by hand acting on the respective button on the control panel (fig. 1 n° 25). There are
four radiator fan inversion relays (fig. 29).
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On the thermostatic valve casing two sensors are fitted: the left one is connected to the instrument that
indicates the liquid temperature, the right one sends the alarm and engine turn-off signal if the temperature
goes beyond 110°C (fig. 33).
- On the feed pedal a micro-switch is fitted which senses the stop position for the start (fig. 34, ref. A).
On the parking brake blocking pedal there is a sensor (fig. 34, ref. B) that senses when the brake is engaged
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and that allows that the engine keeps running even if the operator has left the driving seat.
On the reverse gear pedal tie rod there is a microswitch that activates the reverse gear warning buzzer (fig. 34,
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ref. C).
- The differential locking electric valve (fig. 6, ref. A) is under the accelerator: when it starts, a red led lights up.
- On the electromagnetic clutch cable (fig. 5, ref. B) a diode is fitted which prevents returns of current.
AIR FILTER
Check and clean the air filter (fig. 9) and the prefilter (fig. 13) every 8 hours or more frequently if the place where
you use the machine is very dusty. The air filter is endowed with a depression sensor that signals on the dashboard
that the filter is obstructed. For the replacement and the exact maintenance intervals please follow the instructions
and warnings in the engine manual.
DIESEL FILTER
Change the diesel filter cartridge (fig. 14, ref. A) every 500 hours, or more frequently if you notice impurities in the
container. Check the container at every use and empty it every 50 hours. For the replacement and the exact
maintenance intervals please follow the instructions and advices in the engine manual.
DIESEL DECANTING DEVICE
The decanting device (fig. 5, ref. C) makes possible liquid impurities in the diesel or water deposit on the ground so
that they do not get in contact with engine parts. Clean the decanting device every 500 hours, and also wash the
inside of the lid with clean diesel. Check the decanting device at every use and empty it every 50 hours.
For the cleaning and the exact maintenance intervals please follow the instructions and advices in the engine
manual.
Attention! When you fill up the diesel tank, always use a very fine filter.
CLEANING
Clean the deck, the entry ducts. Do not wash the engine compartment with water under pressure, use compressed
air or a vacuum cleaner.
TOW BAR
The towing bar is located in the rear part of the machine. You can tow compacting rollers and trailer up to max.
weight 250 kg in the plain.
Translation of the original instructions
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