6.9 REPLACEMENT OF THE SUPPORTS AND
SHAFTS OF THE BLADES
Remove the cutting deck [see 5.7].
NOTE
This operation is not strictly necessary since, with a lit-
tle practice and experience, it is possible to dismantle
the deck supports without removing the deck.
Remove the blades control belt and the blades
connection belt [see 6.6 - 6.7]
Remove the blades [see 4.10] and take off the
hubs.
Extract the two toothed pulleys
(1)
from the blade
shafts, undo the seven screws
(2)
fixing the plate
(3)
and remove it.
Dismantle the flanged support
(4)
by unscrewing the
three fixing screws
(5)
.
The entire support (4), including shafts and bear-
ings, is a spare part available as a single assem-
bly unit.
If only the shaft or bearings are to be replaced,
remove the key or the two keys
(6)
and hit the shaft
on the pulley side with a plastic mallet to extract the
shaft together with the lower bearing
(7)
.
After having removed the key
(8)
, the snap ring
(9)
and the dust cover
(10)
, the bearing
(11)
splined onto
the shaft can be removed using a normal extractor,
being careful to close the threaded hole
(12)
with a
suitable screw to prevent the tip of the extractor from
damaging the thread.
The second bearing still in place must be removed by
hitting it from the inside of the flange using a 12 ÷ 15
mm diameter round bar
(13)
.
On reassembly, having first inserted the shaft in the
lower bearing hole and inserted everything into the
support, fit the upper bearing using the specific stop-
per @ Code 60800030/0
(14) that acts on the inner
ring
, hitting it squarely with a mallet until the bearing is
fully driven home.
11
8
10
9
12
3/2002
6
4
7
4
5
15
1
2
2
2
3
102 - 122
6.9
.
0
- REPLACEMENT OF THE SUPPORTS AND
SHAFTS OF THE BLADES
1 / 2
from
2000
to
••••
WORKSHOP MANUAL
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