Gravely 1138 - Page 22

4"9
tlower
Blade:
Mo\.rers
are equipped
with htgh lift
blades
standard.
Vanes
may be
bolted
to
the
blades
to
inprove discharge
or collec-
ting of
grass.
These
vanes
may
or
may
not
-be
helpful
depending on
your
type
of
grass
and cutting conditions.
Gravely
recommends
that
the
user
try the
mower
without
vanes
first and
if the
performance
is satisfactory, use without
vanes
since
the
vanes use
more
power
and
qenerate
more
noise.
Use vanes
only if satisfactory
performance
cannot
be
obtained without
them.
Generally,
broadleaf
grasses
can
be
cut and
bagged without
vanes.
The finer
grasses
may require
vanes.
In damp
conditions,
vanes
may also
be of
he1p.
Routinely
check for
wear
on
the
mower
bla<le
and
vanes, if
used. This
is especially
true in
sandy soil conditions.
flcourro*,
Wear
of the
mower
blade
can
cause
structural
weakness.
Do
not install new
or replacement
vanes on
worn
blades.
This
is
a
potential
haz ard.
Replace worn
parts
with Gravely original eouipment,
blades,
vanes,
and Grade
B hardware as specified.
Cap
screws
must
be
installed
with heads
on top of
the
vanes
and
vanes
on top
of
the
blade.
See
Figure
9.
IMPORTANT:
The
vanes
must
be
used
in
paLrs.
They
can-
not
be interchanged
w
itr
:l
i
!f erent
or worn
vanes
on the same blade.
Using one
of each
of a
dif
f erent
type
or
worn
\rane will cause
the
blade
to
be out
of
bal-ance
and severe
vibration
will occur.
Fr.ze:r
wear on
the
parts
and
proper
balance is ensured
by
replacing
vanes in
pairs.
llOTE:
CAPSGREWS
HUST BE GRAOE
E
AS
SHoWX.
ll0TE: ltl0UllT VAIIE
TO
BTADE
AS
sHowil
0llrY
TrrH woRD
Hillqm
Y
E
./Y
ErmsEo
i
-k/
i#$<
q;sFr'
Y
t-.
7l
5
/
GUTITiIG
EDGE
-
r0cl(xur
FIGURE
9
ll
JL
LOCATED
OII
TOP OF VAIIES CAP