Differential Lock; Maintenance And Lubrication - Grillo CL 75 Manuel D'utilisation

DIFFERENTIAL LOCK

The user engages the differential lock using the lever (fig. 2, ref. D). The differential lock remains
engaged using the block lever (fig. 2, ref. B). Use the differential lock when drive wheels slip. To ensure
the wheels' adherence it is recommended to engage the differential lock on slopes, when using the
machine downhill, on strong slopes and when mowing cross-wise. It is very useful to engage the
differential lock when mowing cross-wise on slopes because in this way the machine will evenly move
forward and the front wheel will not slip. The front wheel can be also blocked into straightforward position
using the appropriate device (fig. 1, no. 18). Caution: do not engage the differential lock on curves. Keep
the differential lock engaging device and the chains well lubricated with grease. To carry out this
procedure, remove the cowling by loosening the two upper screws (fig 12, ref. D).
HOW TO ADJUST THE MACHINE
To adjust the belt tension on the transmission of the blade, adjust the screw (fig. 7, ref. C) and keep the
compensation spring at 2 mm. The blade brake is made up of friction material (fig. 7, ref. B). When
working, the pulley detachment should be minimal and should take place only in the final phase of the
movement of the P.T.O guide pulley, that can be adjusted using the screw (fig. 6, ref. A).
USEFUL TIPPS 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 strain too much.
4) Keep the engine at the maximum r.p.m. during mowing and adjust the speed according to the grass
height.
5) Keep the grids above the engine and the cooling fins of the hydraulic motor (fig. 10 – 14)
clean.
CUTTING POSITIONS
To adjust the cutting position use the crank handle (fig. 12, ref. B). The deck can be set in several
different cutting positions going from 50 mm to 150 mm. In case of uneven ground, humps or dips, the
deck should be kept in the highest cutting position to prevent the blade from hitting the ground. Block the
crank handle into position using the appropriate lock device (fig. 12, ref. C).
CAUTION!
- Disconnect the plug 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.
CAUTION!
To operate on the hydrostatic transmission remove the cowling by loosening the two upper M8 screws
(fig. 12, ref. D).
ENGINE
For the lubrication intervals, follow the instructions provided in the engine handbook. Oil must
be changed after the first 20 working hours. The first precaution is to ensure that the engine is correctly
serviced with the air filter, cooling fins, a clean cylinder head and the oil at the correct level.
CL75/ Translation of the original instructions

MAINTENANCE AND LUBRICATION

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