Filter
Top Products
Tractors,
Lawn
and
Garden
-
110
and
112
Power
Train
50
SM-2059-(Apr
-
67)
Clutch,
Brake
and
Variable
Speed
Drive
10
- 1
Grou
p
10
CLUTCH, BRAKE
AND
VARIABLE
SPEED
DRIVE
PR
IN
CIP
LE
OF
OP
ERATION
V AR
IABL
E
SPEED
CONTROL
LEVER
M 56D.
Fi
g.
I-Vori
o
!o
r
Linkage
T
he
va
riab
le
sp
eed
is r ec
)'
ulate
d
manuall
y
with
the
vari
ab
le
spe
ed
ontr
ol le
ver
(Fi
O'
.
I),
on a
ll
110
an
d
112
Tractor
s .
By
d
pr
es
s
ing
the
thu
m b
r e1e
5e
and
moving
the
va
riable
sp
ed c
ontrol
leve
r to
wards
th
front
of
the
tract
or,
th
e
va
r
i-
a
tor
is
mo
ve
d r
ear
w
ard
and
th
e
tr
ct
cr
spe
ed
is
incr
eased
.
ReleaSing
thumb
pr
ess
ure
on
th
e
var
iable
speed
control
lever
locks
the
le
ve r
in
an
y
of
s e
ve
n
pos
s
ibl
pos
it
ions
on
the
qua
drant.
N T
E.·
Only f i
ve
po
sit
ions
are
opera
tive
al any
one
time
when the
dr
ive
is
properly
adjust
ed
.
The
other
two
positions
all
ow
for
belt
"toler-
an
c
es
" and
normal
wear
before
adJustment
be-
comes
necessary.
CLUTCH-
BRAKE
PEDAL
The
variator
and
variable
speed
can
also
be
controlled
with
the
clutch-brake
ped
:
il
to
vary
tractor
speed
within
the
limits
determined
by
the
position
of
the
variable
speed
control
lever.
When
the
variable
speed
control
lever
is
posi-
tioned
fully
forward,
the
full
speed
range
of
the
variator
and
tractor
can
be
controlled
with
the
clutch-brake
pedal
as
it
is
depre
sse
d
through
range
(A,
Fig.
2).
Litho
in
U
.S.A.
L\I
un
---
-
~
-.,.
-
Fig.
2-
C/utch-Brake
Pedal
D
ep
ressin
g t
he
clutch-b
ra
ke p
eda
l
throu
gh
ra
n
ge
"B"
m o
ves
the
va
ri
t
or
for
wa
rd
to
d
is-
en
gage
the
dr
i
e.
R
ng
e
"C"
is
the
br
ak
pos
i-
tio
n. In
this
m
an
ner,
th
e
driv
e
is
al
ways
di
e
n-
ga
ge
d b
ef
or e
the
bra
ke
is
app
li
ed_
The
par
ki
n
br
ake
can
then
be
rai
sed
to the
park
pos
ition
to
ho
ld
the
variator
an
d
bra
ke
lin
ka
ge
in
the
br
ake
sition
(F
ig
_ 3).
PA
vI
~L
~f<I\Kt
_
--
rL
IITUI -
BRAK
E
PF
OAl
M S60lf
Fig
.
3-Clulch-Brokc
Linkage
The
va
riat
or
is
load
and
torque
sensiti
ve
when
heavy
draft
lo
ads
are
applied.
For
ex
a m-
ple,
While
us
ing a plow
or
fr
ont
mount
d
blade
and
with
the
variable
speed
control
lev
r f
orw
ard
(fast
speed),
the
tractor
may
slow
down
as
the
varLtor
shifts
it
se
lf
into
a
lower
range.
This
also
causes
the
clutch-brake
pedal
to
cre
ep
downward.
The
pedal
comes
up
again
as
the
load
is
relieved.