Grillo MD15 Manual De Instrucciones página 13

USEFUL RULES FOR EFFICIENT USE
1) Never strain the engine: when fumes are emitted from the exhaust it means that it is being strained. Slow down.
2) Do not leave the machine out in the rain.
3) Frequently sharpen the mower blades: the cut will be better and the engine will not be strained as much.
4) Check the land before mowing to make sure that there are no stones, sticks or foreign bodies.
5) Keep the engine at peak r.p.m. during mowing, adjust the speed according to the height of the grass.
6) Keep the grilles above the engine and the cooling fins of the hydraulic engine (fig. 5 – 7) clean.
CUTTING POSITIONS
The cutting position is adjusted using the lever (fig. 2 ref. 8). The deck can be set in 4 different cutting positions from 25 to 75
mm (MD15), from 25 to 80 mm (MD18) and one travel position in which the blade disengages automatically. In case of uneven
ground, humps or dips, the deck should be kept in the highest cutting position to prevent knocks by the blade.
SLOPES
If possible, steep slopes must be mown in the upwards/downwards direction, paying particular attention when turning that the
front wheels do not hit obstacles (stones, branches, roots, etc.) which might cause the machine to overturn, or lead to loss of
control. Assess the conditions and pay particular attention if the ground and grass are damp since the machine might slip. Use a
low speed when driving downhill and do not pass over dry or cut grass since the wheels lose grip; please remember that if you
engage the differential lock (if you bought the MD18) your machine will have higher adherence and stability.
INTERVENTION OF SAFETY DEVICES
Remember that the engine will stop whenever:
– The operator gets up from the seat.
The engine will not start up if:
– The blade is engaged.
– The user is not sitting in the driver's seat.
– If the forward lever isn't at STOP setting.
CAUTION!
- Disconnect the plugs 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.
- Protect the environment: carefully dispose of used oils, petrol and any other pollutant product!
- Effective maintenance and correct lubrication help to keep the machine fully efficient.
ENGINE
For the lubrication intervals, follow the instructions provided in the engine manual; in all cases the oil must be changed after
the first 20 working hours, and then every 100 hours or every season, together with the oil filter (fig. 12, oil drain plug;
please, remove the tap while keeping the piece connected to the engine blocked with a key). Replace the engine oil filter
(fig. 13). The first precaution is to ensure that the engine is correctly serviced with the air filter, cooling fins and cylinder head
clean and the oil at the correct level. Check the air filter every 4 hours, or even more often in very dusty environments. Check
the engine cooling intake grille (fig. 7).
HYDROSTATIC AXLE
With the engine cold, check the expansion tank (fig. 5); it must be empty.
Clean the hydraulic motor cooling fans often, every 4 working hours in summer when conditions are very dusty (fig. 5). Replace
oil after the first 50 working hours, then every 200 hours, use 10W60 engine oil; quantity: 1.85 lt, for replacing follow the
instructions given:
1) remove the two plugs (fig. 14);
2) remove the plug using a screwdriver (fig. 15);
3) screw the two caps (fig. 14) (tightening torque 13-17 Nm);
4) add oil, fix the cap (fig. 15);
5) make sure the expansion tank is empty, the correct oil level is 12 mm underneath the bottom of the expansion tank (fig.
6).
LUBRICATION
Grease every 20 hours:
- the wheel pivots (fig. 16)
- the bushing in the belt stretcher of cutting deck- engine belt (fig. 16/A).
- the forward levers joints (fig. 20).
- the rack steering joints after having removed the board from the steering column (fig. 20A).
MD15-MD18/ Translation of the original instructions
MAINTENANCE AND LUBRICATION
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