Grillo CLIMBER 7.13 Manuel D'utilisation page 14

Climber Series 7/ Translation of the original instructions
CHECKING BLADES AND CUTTING DECK
A blunt blade tears the grass, leaving it unattractive. The cutting edges of both blades must be
sharpened. To remove the complete blade, take hold of it firmly, wearing work gloves, and unscrew
the screws (no. 3 fig. 9). Sharpen both cutting edges using a medium-grain grinding wheel and check
that the blade is balanced by standing it on a round bar inserted in the central hole. Fit the two cutting
blades following the diagram in fig. 9.
CAUTION!
Tighten the fixing screw (3 fig. 9) firmly. Always replace damaged or crooked blades; never attempt to
repair them! When fitting, always follow the diagram (fig. 9). ALWAYS USE ORIGINAL BLADES! If
they are worn they can be turned round since they have two cutting edges. Always check that the
blade bolts are not worn or damaged.
ADJUSTING THE CUTTING DECK
Levelness of the cutting deck is essential in order to obtain an evenly mown lawn. Park the mower on
a flat surface and check that the tyre pressure is correct. Adjust the 4 adjustment devices (fig. 17 –
17A), so that the edge of the cutting plate is at the same distance from the floor, 110 mm, on both
sides (with the operator sitting on board and the cutting deck in the position no. 1 (fig. 18/A). If you are
unable to level off the deck, contact an Authorised After-Sales Service Centre.
BLADE – ENGINE BELT
To adjust the belt tension operate on the register (fig. 18). If the belt becomes twisted or comes off,
make all the checks and adjustments stated below, keeping the deck at the lowest position. Take care
when positioning the belt guides; move them towards the belt, checking the deck at the various height
settings (fig 19).
HYDROSTATIC AXLE – ENGINE BELTS
These belts are self-adjusting and do not require any adjustment. Simply check the spring tension.
To replace the belts, release the tension spring (fig. 21).
BLADE ROTATION
Rotation is started and stopped using the switch (no. 6, fig. 1).
When rotation is engaged the engine must be running at medium rpm and the machine must not be in
the grass for cutting. Never start the blades with the engine at maximum rpm. The machine is
equipped with an electromagnetic clutch which also brakes the blade during disengagement. The
blades are also disengaged automatically when the cutting height adjuster lever is moved to the
highest position. CAUTION: for safety reasons if the operator pushes down the height adjustment
lever from the highest position with the PTO button engaged, the blades do not start automatically. To
start the blade the PTO button must be switched off and switched on again.
The blade must stop within 5 seconds, if this is not the case, adjust the 3 nuts of the electromagnetic
clutch, placing a 0.3 mm feeler gauge under the brake plate. N.B. This operation must be carried
out by an authorized after-sales service center.
CHANGING THE BELTS
The movement is transmitted from the motor to the hydraulic transmission and to the blades by
means of two v-belts. Replace the belts as soon as they show signs of wear! Their replacement
and subsequent adjustment are fairly complex procedures and must be carried out by an Authorised
After-Sales Service Centre. For cutting deck drive belt, the belt guide beside the deck pulley has to be
removed (fig. 19); release the belt stretcher spring (Fig.20).
ALWAYS USE ORIGINAL BELTS!
DIFFERENTIAL LOCK CHAINS
On both sides of the differential lock axle there are two chain tensioners. To regulate them slightly
unlock the two nuts (fig. 28, ref. A) and use the screw (fig. 28, ref. B). CAUTION: In order not to
overload the transmission, do not tension the chain. The chain should move about 1 mm.
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