Grillo CLIMBER 9.18, Operator'S Manual, Page: 14 / 44

Climber 9.22 / Translation of the original instructions
HYDRAULIC MOTOR
Check the level in the expansion tank when the motor is cold. It should come up to the level notch (fig. 3). If necessary add
15W50 or 20W50 oil. Change the oil every 200 working hours. To drain the oil, unscrew the cap (fig. 4) and pour into the tank.
Keep the fins and coil of the hydraulic motor thoroughly cleaned (fig. 3A – fig. 7). Quantity: 1 litre.
AIR FILTER
Check the air filter every 4 hours, or more frequently if working in a very dusty environment (fig. 6 – fig. 6A). Check the air intake
grid for engine cooling (fig. 5). The external and internal grids must always be kept clean to avoid blocking the air flow needed
for the engine cooling. Keep the engine compartment, the hydrostatic transmission and the intake grid clean.
CUTTER DECK AND BLADES
A blunt blade tears the grass, leaving it unattractive. The cutting edges of both blades must be sharpened. To remove a blade,
take hold of it firmly, wearing work gloves, and unscrew the central screw, remembering that the screw has a right-hand thread
(fig. 1C, no. 3). 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 (fig. 13).
CAUTION!
Firmly tighten the fixing screw (fig. 1C, no. 3). Always replace damaged or crooked blades: Never attempt to repair them! When
fitting, always follow the diagram (fig. 13
). ALWAYS USE ORIGINAL BLADES! If they are worn they can be turned round since
they have two cutting edges.
CUTTER 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 right and the left adjustment devices so that the edge of the cutting deck is at the
same distance from the floor that is 170 mm (fig. 24) on both sides with the operator sitting on board (fig. 14 – 14A) and with the
mower deck in the highest cutting position. If you are unable to level off the deck, contact an authorised service centre.
ENGINE BELT - CUTTING DECK BELT
The engine – blade belt is self-adjusting. Therefore no adjustment is required. Simply check the spring tension (fig. 15). If the
belt becomes twisted or comes off, check the parameters below, keeping the cutter deck in the highest position (“transfer”
position):
1) 170 mm from the edge of the deck to the ground (fig. 24).
2) 170 mm from the rear edge of the deck to the ground (fig. 24).
3) Adjust the registers (fig. 14 – 14A).
4) Take care when positioning the belt guides; move them towards the belt, checking the cutter deck at the various height
settings (fig. 12, ref. A). Check that during operation the belt is always in the centre of the stretcher (fig. 15, ref. A). The stretcher
has to stick about 5/8 mm out of the frame (fig. 25).
ENGINE – HYDROSTATIC TRANSMISSION BELT
Whenever there is a change in belt length (causing therefore its malfunctioning), the tension can be regulated by means of the
adjustment device (fig. 16). Take care not to compress the spring beneath the unit completely; belts must be neither too tight nor
loosen. The spring must be kept set at 44 mm and it is indicated by the red arrow (fig. 16)
BLADE ROTATION
Rotation is started and stopped using the switch (no. 1, fig. 1). When rotation is engaged the engine must be running at medium
rpm (see label on the throttle lever) and the machine must be outside the area to be cut. 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 (fig. 1, no. 1), the blades do not start automatically. To start the blade the PTO button must be switched off and
switched on again (fig. 1, no. 1). The blade must stop within 5 seconds when the PTO button is switched off and when the
operator leaves the driver's seat. 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.
IMPORTANT: 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 the cutter deck – engine belt, the belt guides of the
deck pulley have to be removed; release the belt stretcher spring (fig. 15, ref. B). For the two transmission and hydraulic engine
belts proceeds as follows:
-remove the rear and top grids
-undo the belt stretcher nut (fig. 16)
ALWAYS USE ORIGINAL BELTS!
TRACTION RELEASE LEVER
The traction release device is located behind the seat; in case of emergency, to allow it to be towed or moved by hand, move
the lever outward (fig. 20A). In the position shown (fig. 20B) the machine is in working condition. Check that during working the
hydraulic engine piston does not remain pressed down; if necessary, adjust the nut (fig. 21).
DIFFERENTIAL LOCK ADJUSTMENT
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