Transport Method; Adjustment Of Working Height; Blades - maschio BRAVA LARGE Gebrauch Und Wartung

ITALIANO ENGLISH

4.5 TRANSPORT METHOD

During transport and whenever lifting is required,
the lifting unit of the tractor should be regulated so that the
machine is raised about 35 cm from the ground (fi g.17).
4.6 ADJUSTMENT OF
WORKING HEIGHT
For a correct regulation of the working height, it is neces-
sary to:
- Gradually lower the machine completely down to the
ground, using the hoister (tractor switched off and parking
brake pulled on).
- Regulate the working height.
For a correct adjustment, the blades must be ca. 2 - 3
cm from the surface of the ground.

4.7 BLADES

The knives with which the machine is equipped are made of
high quality steel and the stress-relieving heat treatments to
which they are subjected ensure high tenacity and notable
resistance to wear.
The dimensions and weights are closely monitored. The rotor
will not need to be dynamically balanced again if the knives
are partially or completely replaced.
Thanks to its versatility, this machine can be equipped with
knives of different shapes and sizes.
Club type 08 can be used for grass, shrubs and pruning re-
mains (fi g.18), or club type 10 for universal use, depending
on the job in hand (fi g.19).
Inspection of wear on knives and fi xing pins
DANGER
The knives must always be checked before the machine
is used. Moreover, the knives must also be systemati-
cally checked whenever they strike against some ob-
stacle during work.
- The quality of the cut products, the reliability of the machine
and your safety depend on how carefully these compo-
nents are checked.
- The knives must be replaced in the following cases:
Damaged knives
Impact could twist or split the blades with the following ef-
fects:
- Impaired cutting quality.
- Increased vibrations causing the mechanical parts of the
machine to break.
- Partial or total breakage of the knives with the risk of parts
of the knives being thrown up.
Worn knives
- The diameter of fi xing hole «F» must not be ovalized more
than 2 mm in relation to the original diameter (fi g.22).
- Length «L» of the knives must not be allowed to become
more than 15 mm shorter than the original length (fi g.22).
The pins must be replaced if:
- The thread of fi xing screw «S» is damaged.
- Wear «T» on pin exceeds 2 mm (fi g.22).
- Make sure that the machine is completely stable.
54 - EN
USE AND MAINTENANCE
fi g.17
fi g.18
fi g.19
08
F
L
F = 16,5 mm
L = 100 mm
10
cod. F07021035