Superabrasive
User
Manual
Original
Language
Lavina®
25G
‐
X
2/2015
20
8.5
REPLACING
THE
CLUTCH
In
case
the
electric
clutch
has
to
be
replaced,
remove
the
engine
(see
previous
chapter)
and
lay
it
on
its
side
with
the
oil
drainage
up
(Fig.
8.5.1)
and
loose
the
front
nut
to
dismount
the
clutch
(Fig.
8.5.2
and
Fig.
8.5.3
).
Reassemble
in
the
same
manner.
Do
not
forget
to
mount
back
the
washer
on
the
shaft
(Fig.
8.5.4).
The
torque
on
the
front
nut
(Fig.
8.5.3)
to
mount
the
pulley
and
clutch
should
be
70
Nm
or
52
ft
lbs(Fig.
8.5.2
and
Fig.
8.5.3).
8.6
DISMOUNTING
TOOL
HOLDER
TO
CHANGING
V
‐
RINGS
AND
FELT
‐
RINGS
To
check
or
replace
the
buffers
and
the
elastic
elements
,
the
tool
holders
have
to
be
dismounted.
You
will
need
deep
metric
socket
13mm
with
outside
diameter
not
more
than
3/4in
to
unscrew
the
four
bolts
(Fig.8.6.1)
and
remove
the
holder
(Fig.8.6.2)
When
the
tool
holder
is
dismounted,
you
can
change
the
sealers
(V
‐
Ring
and
Felt
‐
Ring).
By
loosening
four
Hex
cap
flange
bolts
(Fig.8.6.3)
the
adaptor
comes
loose.
Unscrew
the
six
screws
of
the
cap
(Fig.8.6.4)
holding
the
felt
‐
ring.
Take
out
the
Felt
‐
Ring,
adaptor
and
V
‐
Ring.
Mount
the
V
‐
Ring
with
the
smallest
lip
of
the
V
to
inside
(Fig.8.6.5)
just
push
the
V
‐
Ring
so
the
top
is
on
the
same
level
as
the
pulley
top
(Fig.8.6.6).
Then
take
the
adaptor
and
push
the
V
‐
Ring
down
with
the
adaptor
(Fig.8.6.7).
The
lowest
lip
of
the
V
‐
Ring
should
only
barely
touch
its
gliding
surface;
also
never
push
the
V
‐
Ring
down
with
fingers.
Mount
the
adaptor
and
the
Felt
‐
Ring
on
top
(Fig.8.6.7).
Close
the
sealers
with
the
cap
(Fig.8.6.8)
and
screw
the
bolts.
Always
use
the
original
bolts.
Figure 8.5.1
Figure 8.5.2
Figure 8.5.3
Figure 8.6.1
8 2 1
Figure 8.6.2
Figure 8.6.3
Figure 8.6.4
Figure 8.6.5
Figure 8.6.6
Figure 8.6.7
Figure 8.6.8
Figure 8.5.4
