Grillo CL 700 Mode D'emploi Et Maintenance page 14

FRONT WHEEL AXLE
Grease the front wheel fig. 12 every 20 hours.
Lubricate the handlebar joints and the cables.
AIR FILTER
Check the air filter every 4 hours, or more frequently if working in a very dusty environment (fig.2 n°15).
CHECKING THE BLADES AND CUTTING DECK
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 (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.
BLADE - DRIVE BELT
To adjust the belt tension act on the register (fig.2 n°1), which is on the lever. Working, the spring must stretch 100
mm.
If the belt becomes twisted or comes off, check the pulley alignment.
Take care when positioning the belt guides; move them towards the belt (fig 13). When the drive belt is in tension,
it must not reach the guides.
DRIVE BELTS - HYDROSTATIC AXLE
Check the spring tension, which during the work must stretch 17 mm. To replace the belts, release the tension
springs (fig. 14).
BLADE ROTATION
Rotation is started and stopped using the lever 1 fig. 2 (leaving the lever, the blade stop working).
When rotation is engaged, the engine must be running at medium rpm and the machine must not be in the grass
for cutting.
The blades are disengaged, leaving the lever (1, fig. 2).
The blade must stop within 5 seconds; if this is not the case, adjust the brake using the register (fig.15).
N.B. This operation must be carried out by an authorised after-sales service centre.
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 two belt guides beside the pulley have to be removed (fig. 13); release the belt
stretcher spring (fig. 16) and remove the belt guides (A, fig. 16).
Release the blades brake and the spring (Note: the spring must be assembled in the ring).
For the drive belt hydrostatic axle, you need assembly the belt guides support (fig. 17).
ALWAYS USE ORIGINAL BELTS!
TRACTION RELEASE LEVER
The traction release device is located at the back of the machine (fig. 18); if the machine breaks down, to allow it
to be moved by hand, move the lever to idle position (A, fig. 18). In the position (B) shown in Fig. 22 the machine
is in working condition.
13