Grillo MD Serie Manual De Instrucciones página 12

PARKING BRAKE
To engage the parking brake lift up the loop (fig. 3, ref. 10) and hook the lever.
To adjust the parking brake use the register (fig. 5).
DIFFERENTIAL LOCK (ON MD18 ONLY)
The differential locking pedal is the one indicated in fig. 1 ref. 4. Press the differential locking pedal in
case of driving-wheels skidding. It is recommended to use the differential lock on slopes and when
driving downhill to keep the driving-wheels in adhesion. Caution! Do not use the differential lock when
bending. In case of disengagement, keep lubricate with grease the coupling and the drive-chains.
ADJUSTMENT OF THE DIFFERENTIAL LOCK CHAINS (MD18)
If the chains of the chains of the diff lock system result to be loose, you have the possibility to tighten
them correctly by means of the adjustment bolts (fig. 26A). In order to tighten the chains in a correct way
you need to loosen the screws of the ball bearings (fig. 26A, ref. A) on both parts and act then on the
bolts. (fig. 26A, ref. B). Re-tighten the screws (fig. 26A, ref. A). CAUTION: do not tighten the chains too
much; both branches shouldn't be too tighted.
HOURMETER
The machine is equipped with the an hourmeter (fig. 1, no. 2) with three different functions:
1) It always shows the no. of hours worked, even when the key is not inserted.
2) It displays the no. of hours to the next engine oil change (OIL CHANGE IN...HS). The first oil change
must be carried out after the first 20 working hours than every 100 working hours. The indicator "OIL
CHANGE" flashes automatically when it is necessary to change the oil.
3) It displays the no. of hours to the next lubrication (LUBE IN...HS). Lubrication must be carried out
every 50 working hours. The indicator "LUBE" flashes automatically when lubrication must be carried
out.
By pushing the white button you can choose the function to be displayed on the hour meter.
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 (MD13), 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.
SLOPING GROUND
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.
MD13-MD18/ Translation of the original instructions
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