Grillo FD 2200 TS Manual De Instrucciones página 13

With the engine at minimum, open the engine cooling liquid refilling tank.
3.
Unscrew the plug for the bleed on the upper part of the radiator (fig. 36).
4.
With the plug open, accelerate to medium speed and slow down several times until plain liquid comes out.
5.
Tighten the screw.
6.
Accelerate again for some minutes.
7.
Unscrew the bleed plug again and repeat the steps 5-6-7 four or five times until plain liquid comes out.
8.
9.At the end, re-establish the liquid level in the tank 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, 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:
- the oil is black;
the oil has a whitish colour (it is contaminated with water);
-
- there is black residue (partial oil deterioration).
To remove the oil undo the lower oil reservoir plug (fig. 20). To fill it in, unscrew the upper cap (fig. 6, B). Pay
attention to possible impurities, which may get into the circuit, causing serious problems to your machine.
When you change the hydraulic oil, you must also change the two oil filters (fig. 46, A); pay attention to the filtration
level of each filter (10 and 60 micron) and not to mix the filters up. On the dashboard there is a warning light
connected to the filter blocking sensor that shows when the filter has to be replaced.
Do not increase the drive wheels hydraulic system pressure over 280 bar; the hydraulic pump and the hydrostatic
engines on the wheels may be damaged. To adjust the cutting deck and the grass catcher hydraulic pressure use
the screw with counter-nut located on the hydraulic distributor (fig. 12, A). The red LEDs indicate that the different
functions are on. Max. pressure is 200 BAR. This procedure must be carried out by an authorized dealer.
155 cm CUTTING DECK GEAR BOXES
Use synthetic oil LSX 75W90, 1.8 litres, to be changed every 300 hours. The oil level plug is positioned over the
gear boxes. If you notice any leakage, check and replace the oil seals to avoid the deterioration of the entire
transmission.
EMERGENCY AND PARKING BRAKE OIL
Every 50 hours check the brake oil level in the reservoir on the left side of the driving seat (fig. 40). If necessary,
add brake oil DOT4 (total quantity 0.5 litres). Periodically check the braking system to make sure there are no
leakages. Whenever it is necessary, carry out the air bleed procedure. If you have the proper tool, connect it at the
place of the tank cap. If you have to carry out the purgewithout the proper tool proceed as follows:
1) Put the oil into the tank.
2) Press the emergency brake pedal 3 times (fig. 1 no. 3): while keeping the pedal pressed, slightly unscrew the
drain plugs on the calipers to let the air out.
3) Repeat the procedure twice, until the circuit gets under pressure when pressing the pedal.
4) IMPORTANT: the brake pedal must have a little free-play to prevent the circuit from being steadily kept in
pressure, which would damage the brakes.
NOTE: Use the brake pedal only in case of emergency. To stop the machine, just release the forward and reverse
pedal.
SHARPENING THE BLADES
For the cutting deck check and maintenance proceed as follows:
1) lift the cutting deck hydraulically;
2) release the two rear pivots (fig. 21, A);
3) adjust the mower deck into the lowest cutting position and insert the two pivots into the bushings below the
attach of the mower deck arms (fig. 22, B). Use the switch (fig. 2, n. 1) to set the mower deck into the
maintenance position.
You do not need to detach the cardan joint from the load chute. Before starting the machine, make you sure that the
cardan joint is well connected and that the stop push button is protruding. A blunt blade pulls at the grass giving it
an unsightly appearance, the cutting edges of the blades must therefore be kept sharp at all times. As the blades
wear they lose their cutting efficiency and tend to become unbalanced, causing the lawnmower to vibrate; sharpen
both blades uniformly.
When blades are replaced, it is compulsory to replace also the screw and its nut (fig. 23). Do not block the blade
cutting edges: they must be without play, but free to float if they hit against something. In order to avoid
damage to the blades, the torque of the blade pin must be of 90 Nm. To remove a blade disc, hold it firmly using
safety gloves and unscrew the fixing plate and the central screw. Caution: the right blade central fixing screw has a
left-handed thread (fig. 23). Caution: Always replace damaged or bent blades; never try to repair them! ALWAYS
USE ORIGINAL BLADES!
FD2200TS/ Translation of the original instructions
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