Grillo FD 1500 PRO 4WD Manuel D'utilisation page 13

ENGINE
For the lubrication intervals follow the directions given in the engine manual; it is in any case indispensable to
change the oil and the filter after the first 50 working hours and then every 250 hours. For the diesel engine
use SAE 15 W 40 oil, 6.5 litres (fig.16 and fig. 17). When you change the engine oil, it is necessary to change also
the oil filter (fig. 46) and the gas oil filter (fig. 21, ref. A).
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. 8) and the pre-filter every 8 hours or even more frequently in dusty conditions.
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 a hydraulic engine. If the radiator protection grids are obstructed and the cooling fluid
and the hydraulic oil temperature gets over 92° C, a sensor automatically inverts the direction of rotation of the fan
for a few minutes in order to clean the grids. This operation can also be made by hand, working for a few second
the fan inverter button (fig. 2 no. 5). To check and clean the radiator fan, remove the pin (fig. 19).
GAS OIL FEEDING PUMP
There is an electric pump (fig. 18) in the gas oil feeding circuit that takes fuel from the tank and sends it to the filter
(see engine handbook).
AIR FILTER
Check the air filter every 8 hours or more frequently if the place where you use the machine is very dusty (fig. 8).
The air filter is endowed with a depression sensor that signals with a warning light on the dashboard that the filter is
obstructed. For the substitution and the exact maintenance intervals please follow the instructions and warnings in
the engine manual.
DIESEL FILTER
Change the diesel filter cartridge (fig. 21, 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 substitution and the exact
maintenance intervals please follow the instructions and advices in the engine manual.
DIESEL DECANTING DEVICE
The decanting device (fig. 5, ref. B) 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.
RADIATOR REFILLING
If the liquid in the cooling circuit is running out, you have to refill it with the refilling cap on the expansion tank on the
right side of the driving seat: to uncover it, remove the black protection on top of the cowling (fig. 35). Carry out this
intervention with cold engine.
RADIATOR BLEED
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.
Make the air bleed in the following way:
1) Caution! For this operation always wear suitable working gloves.
2) With the liquid in the reservoir at the right level, start the engine and bring it to working temperature (to make
sure the engine thermostatic valve is open).
3) With the engine at minimum, open the engine cooling liquid refilling reservoir.
4) Unscrew the plug for the bleed on the upper part of the radiator (fig. 36).
5) With the plug open, accelerate to medium speed and slow down several times until plain liquid comes out.
6) Tighten the screw.
7) Accelerate again for some minutes.
8) Unscrew the bleed plug again and repeat the steps 5-6-7 four or five times until plain liquid comes out.
9) At the end, re-establish the liquid level in the reservoir and close the cap.
HYDRAULIC ENGINES
Check the level in the reservoir with cold engines (fig. 4). If more oil is needed, add hydraulic oil OSO 46 (total
quantity: 36 litres, fig. 6, ref. B). Carry out this control periodically.
Caution! Change the hydraulic oil in the hydraulic engines the first time after 500 hours and then every 1000 hours.
The oil must be changed before the first 500 hours if:
Translation of the original instructions
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