Bertolini 316 Uso Y Mantenimiento página 56

FRONTAL CUTTER BAR APPLICATION
(Fig.21)
Connection to motor cultivator
Couple the cutter bar by using the Quickfit.
Clearance adjustment between the cen-
tral pin and pads
For better operation, the clearance between
the central pin and the pads should be of 1.3
tenths. To obtain such a clearance, proceed
as follows:
A) Loosen screw (7)
B) Tighten grub screw (8) until reaching a
moderate tightening of the pads against
the central pin by using the supplied Allen
wrench
C) From the position reached, turn the Allen
wrench in the opposite sense (unscrew the
grub screw) for about 1/8 of a turn (45°)
D) To lock the grub screw (7), tighten screw
(8)
N.B. - Repeat operations of points A-B-C-D
each time a clearance reset is wanted for
better functioning. It is recommended to
carry out such operations every 20+30 hours
operation.
ATTENTION - To avoid harmful
strain, never lock the central
pin with the adjustment pads;
always leave a clearance of at
least 0,1mm.
Cutter bar height adjustment
When working on bad terrain, it is neces-
sary to adjust the mower's cut height in the
following way:
- Loosen nut 1.
- Bring the skid pad back to wanted posi-
tion.
- Re-lock the nut.
- Carry out adjustment on both skid pads.
Blade holder adjustment
- Loosen fixing screws 3.
- Act on adjustment screws 4.
- Re-tighten fixing screws.
N.B.: Excessive friction between the blade
presser and the blade must be avoided in
order to ensure efficiency.
Mower blade replacement
1) Special Mower
- Loosen screws 5.
- Remove blade catch 6.
- Slip off the blade.
To reassemble the blade carry out the same
operations but in the opposite way.
2) Normal Mower
- Loosen screws 5.
- Remove blade catch 6.
- Turn the blade through 90°.
- Slip off the blade.
To reassemble the blade carry out the same
operations but in the opposite way.
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