Grillo GH 7 Manuel D'entretien page 14

Translation of the Original Instructions
ALL PURPOSE FLAIL GEARBOX – ROTOR BELT
The tension of this belt can be adjusted by loosening the nuts B and C of the rod (fig. 19, A)
located on the right side of the all purpose flail.
IMPORTANT: If the belt is not well-tensioned, it could slip or wear down quickly. On the other hand
if the belt is too tensioned, it could wear down the bearings prematurely.
ROTATION OF THE ROTOR
To engage and disengage the rotor use the lever (fig. 2, n. 2). Engage the rotor at max. r.p.m. and
outside the grass to be cut. TO disengage the rotor release the lever (fig. 2, n. 2). The rotor must
stop within 7 seconds. Should this not be the case adjust the rotor brake using the rod (fig. 11) and
replacing the braking element if necessary (fig. 10, B).
IMPORTANT: this procedure must be carried out by an authorized dealer.
HOW TO REPLACE THE BELTS
The transmission of the movement from the engine to the hydraulic transmission is guaranteed by
three V-belts (one for the hydrostatic axle and two for the PTO). Replace the belts as soon as
they show signs of wear!
Both their replacement and adjustment are very complex procedures and have to be carried our by
authorized dealers only.
ALWAYS USE ORIGINAL BLADES
HOW TO UNLOCK TRACTION
Traction is unlocked by using two levers (fig. 2, n. 14 – fig. 3, D and E) that are located on the left
side of the handlebar. To tow the machine in case of a breakdown pull both levers at the same
time.
CAUTION: Never pull these levers on slopes when the engine is running. The machine will move
downwards uncontrolled.
END OF SEASON MAINTENANCE
Thoroughly wash the machine. Replace the oil both in the engine and in the gearbox. Clean the air
filter. Sharpen and grease the blades or replace them if they are worn
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