Grillo FD900 4WD, Operator'S Manual, Page: 13 / 90

Translation of the original instructions
MAINTENANCE AND LUBRICATION
CAUTION!
- Before performing any cleaning, maintenance or repair operation always wear suitable clothing and
working gloves.
- When the machine or part of it is lifted to carry out maintenance operations, always remember to use
suitable fixing tools such as holders and safety locks.
- When carrying out maintenance operations and/or when the machine is tilted without safety locks or
supports, never leave it unguarded in places where inexperienced people and children could have easy
access to it.
If you do the maintenance on the engine, keeping the grass-catcher raised engage the two red safety locks on the
hydraulic cylinders (fig. 16).
Never work on the engine if you have not engaged the safety locks.
ACCESSING THE ENGINE BASEMENT
Should the engine not start, to get access to it pull the lever of the hydraulic distributor for the tilting of the grass-
catcher and then push the grass-catcher manually rearwards.
LUBRICATION
Never dispose of used oil, petrol or any other type of pollutant in the environment! Proper maintenance and correct
lubrication help to keep the machine fully efficient.
LUBRICATION CHART
Engine oil 15W40 3 kg Replace after the first 50 working hours and then
every 250 hours.
Coolant liquid / 6 kg Empty and wash the tank then add the coolant
every 1000 working hours or once a year.
Hydraulic oil OSO 46 9,5 kg Replace after the first 500 working hours then every
1000 working hours.
Cutting deck gearboxes LSX 75W90 0,1 kg
0,112 lt
Replace every 300 working hours.
ENGINE
For the lubrication intervals follow the directions given in the engine manual . It is in any case necessary to change
the oil and the filter after the first 50 working hours and then every 250 hours. For the diesel engine use SAE
15W40 oil quantity 3 litres. When you change the engine oil, it is necessary to change also the oil filter (fig. 3). To
remove the engine oil, unscrew the lid on the right side of the oil cup (fig. 17). Pour in the oil through the lid (fig. 18).
The first precaution to be taken is that the engine is maintained correctly with a clean air filter and the engine oil up
to the level. Keep the engine compartment, the muffler area and the collectors clean. Use a vacuum cleaner if
possible. Check the air filter (fig. 10) and the prefilter every 8 hours. In order not to reduce the air needed to cool the
radiator, the grid must always be kept clear. Make sure the radiator is always clean. The radiator fan is driven by an
electric engine. If the radiator protection grids are clogged and the cooling fluid and the hydraulic oil temperature
gets over 87° C, a sensor automatically reverses the rotation of the fan for a few minutes in order to clean the grids.
To check and clean the radiator fan use the lever (fig. 9).
RADIATOR REFILLING AND PURGE
Caution! Danger:
hot liquid under pressure. In order to let the engine cool down correctly, there should be no air in
the cooling circuit. Make sure that the clamps on the water muffs are well tight and that no air can get into the circuit
from the outside. Carry out the purge as follows:
Caution: For this operation always wear suitable working gloves.
1)
Pour coolant liquid into the expansion tank (fig. 8).
2) Start the engine and bring it to working temperature (to make sure the engine thermostatic valve is open).
3) Re-establish the liquid level in the expansion tank.
HYDRAULIC DISTRIBUTOR for SERVICES
The hydraulic distributor is controlled via levers (fig. 20). Working pressure: 120 BAR.
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