ROTARY MOWER
Fig. 27Fig. 26
- the self-braking layer of the fixing screw is missing or
has become too worn (it is advisable to change the screw
after it has been tightened 5 times), (fig.22).
- the fixing screw has become worn in the zone where it
holds the knife: if the diameter is 3 mm / 0.11 inches less
than the original diameter (fig.23).
- the tightening nut is worn: if the height of the nut is 1/2
the original height (fig.24).
- the tightening nut is inefficient: if the washer under the
nut has become flattened (fig.25)
WARNING
The worn or damaged parts must be replaced with ge-
nuine spares.
5.3 HOW TO TOP UP THE LUBRICATING OIL
CAUTION
Change the oil in the unit and bar after the first 10/15
hours service.
After this first change, the oil must be changed after every
200 effective hours service and in any case once a year.
During the period in which the mower is used, check the
level of the oil each day and top it up if necessary.
WARNING
Before proceeding with these inspections, stop the
tractor engine, remove the ignition key from the
dashboard and disengage the driveline transmission.
Overdrive unit (fig.26):
check the level with the relative dipstick on the fill plug (T),
and with the bar in a horizontal position:
T = oil fill plug, with dipstick and breather valve
A = oil drain plug
S = bar breather plug
use: GEAR POWER ISO 150 oil - 0.8 liters
Fill with oil with the bar in a horizontal position (plug T).
Drain the oil out with the bar in a vertical position (plug A).
Mowing bar unit (fig.27):
To check the level of the oil in this component, leave the bar
in a vertical position for 5 minutes to allow the oil to flow
downwards. The oil must reach the level of fill plug C.
C = oil level checking and fill plug
U = drain plug
Use: GEAR POWER ISO 150 oil
bar with 4 discs: 1.7 liters
bar with 5 discs: 2.2 liters
bar with 6 discs: 2.7 liters
bar with 7 discs: 3.2 liters
Fill with oil with the bar vertical (plug C). It should also be
vertical when the oil is drained (plug U).
5.4 HOW TO GREASE THE MECHANICAL
COMPONENTS
Before use and after every 8 hours effective service, you
are advised to grease all the articulations, supports,
hinges, the points equipped with grease nipples and the
safety release (fig.28).
The driveline must also be greased regularly (Fig.28).
Clean and grease the driveline before every long idle period.
The protective tubes must be greased to prevent the plastic
from becoming fragile in winter, when the temperature is
low.
It is advisable to clean mud and other residues from the
tops of the grease nipples before using them to inject
lubricating grease.
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