
MAINTENANCE
AN D
LU BRICATION
CAUTION!
Remove the
key and
disconnect the
plugs
before
starting any
cleaning,
maintenance
or
repair
procedure.
Always
wear suitable
working
clothes and
safety
gloves.
LUBRICATION
Never dispose
of used oil,
petrÒl
or any
other type of
pollutant
in the environment!
Proper maintenance
and correct
lubrication
help to
keep the
mower
working
perfec-tly.
ENGINE
For the lubrication
intervals,
follow the
instructions
provided
in the engine
handbook;
in all cases
the oil must
be
changed
afterthe
first 5
working hours, and
then
every 50
hours or
every
season,
together
with the oil
filter,
fig. 8
(oil
drain
plug).
For
the
petrol
engine use SAE
30 oil,
1.4 litres
without
filter, 1.7
litres with
filter
(fig. 4).
Replace
the engine oilfilter
(fig.
8/A).
The first
precaution
is to ensure that the
engine
is
correctly
serviced
with the air
filter,
cooling
fins and
cylinder
head
clean
and the
oil at
the correct level.
Check the air filter every
4 hours, or even
more often
in very dusty environments.
Check the engine cooling
intake
grille (fig.
3).
HYDROSTATIC
AXLE
With the engine cold, check the expansion
tank; it must be empty,
fig.22.
Clean
the hydraulic motor cooling
fans often, every
2 working
hours
in summer
when
conditions
are
very dusty.
Change the engine oil after the
first 50 hours'
operation, and
then every
200 hours,
use 1.85
lt of
10W30
oil and to replace
proceed
as
follows:
1) Remove the two caps
fig. 23.
2) Using a screwdriver, remove
the capfig.24.
3) Screw the two caps fig. 23 back
into
place (tightening
torque
13-17
Nm).
4) Fill with oil and
replace the cap fig.24.
5)
Check that the expansion tank is empty;
the level is
12 mm below
the bottom
of the
expansion
tank
fig.22.
REAR
WHEEL
AXLE
Grease the rear wheel
pivot pins
fig. 10 every
20 hours.
Lubricate the
steering
joints.
SHARPENING THE BLADES
A blunt blade
pulls
at
the
grass, giving
it an unsightly appearance.
The cutting
edges of
both
blades
must therefore
always be kept
sharp; worn blades must be
replaced.
To do this it is
best to remove
the
mower deck
fig. 11. Proceed as
follows:
1) Remove the
guard
above the deck by
unscrewing the two knobs
fig.2 n" 13.
2) Release
the spring fig.
12
"E"
.
3) Release
the fork fig.
12"F".
4)
Remove the
belt
fig.
'13.
5) Releasetheleverllfig.2,pullthedeckforwardandsetitvertical;takecarenottobendtheadjustercables
fig.
'11
As the
blades wearthey lose
their
cutting efficiency and tend to become unbalanced,
causing
the mowerto
vibrate.
lf
the unbalance
persists
even after
sharpening, check the balance by
inserting a screwdriver
in
the hole in the
centre
of the blade
and
grind
until the blade remains horizontal
and
therefore
"balanced".
To
remove
a blade, take hold
of it firmly, wearing
safety
gloves,
and
undo the central
screw. Caution:
the central
fixing
screw of
the right-hand
blade has a left-hand
thread
(fig.
15).
CAUTION!
Always
replace
damaged or
bent blades;
never attempt
to repair them!
ALWAYS
USE
ORIGINAL
BLADES!
11