18
ig. 34
A
B
C
ig. 35
14.3
Adjustment of PTO belts
To adjust the tension of the PTO belts:
1. Release the radiator, using the lever to access the clutch (Fig. 36).
2.
Loosen the lock nut (ig. 37/A).
3.
Screw/unscrew the nut (ig. 37/B) so that the tip of the red tension
indicator (ig. 37/C) is aligned with the end of the spring terminal.
ig. 23
ig. 37
A
C
ig. 36
B
14
ExTRAORDINARY ADjUSTMENTS
CAUTION: The adjustment procedures described below
require technical skills and expertise.
We recommend that you contact an authorised Grillo centre to
carry out these procedures.
14.1
Adjusting the parking brake
If the parking brake is ineffective, it is possible to adjust it using the ad-
justing screw and nut located under the seat (ig. 31): by loosening the
lock nut and unscrewing or screwing the adjusting screw and nut, it is
possible to modify the tension of the wire connected to the lever. The
effectiveness of the brake is due to the block between the two pads of
the disc placed at the exit of the reducer (ig. 32). When the brake is not
activated, it is important to have a clearance between the pad and the
disc (0.4÷0.6 mm) and that the wire is not tensed.
ig. 31
ig. 32
14.2
Adjustment of the mower deck
An optimal alignment of the deck is essential to achieve an evenly mowed
lawn. Place the mower on a smooth, even surface, ensure the distributor
lever is loating and lower the cutting height to the minimum. Then:
1. check the correct tyre pressure (1.5 bar) check the distance of the
edge of the pan from the ground at the points indicated (ig. 33).
ig. 33
A
B
2. in A the measurement must be 15/20 mm, in B it must be about 5/10
mm greater than A.
3. if necessary, proceed as follows:
• on the adjustment screw (ig. 34/A) to adjust the height of the front
part;
• on the two tie rods (ig. 34/B), one on the right and one on the left,
to adjust the height of the rear part;
• on the front wheel eyelets (ig. 35/C) to adjust the difference in
height between the left and right-hand sides.
