AUTOMATIC TRANSMISSION
AUTOMATIC
TRANSMISSION
Introduction
The transmiSSion conSiStS
of
tWO
malll
parts
~
a flUid dnven
torque converter capable of varymg
torque-muiltplicallon,
and a hydraulically
controlled
epicyclic gearbox. featuring
planetary
gears
which
provide reverse and three
forward
ratiOS
Selector
lever
Positions
A selectOr lever,
IS
mOunted
on
the
transmiSSion
tunnel
The
upper
lace
of
the
quadrant
IS
marked
wIth
the symbols 'P',
'R',
'N',
'0',
'2',
"',
which
indicate
the follOWing
funcllons
'p'
for park
-D'lor
automatic
forward
dove
'A'lor
reverse
'2'
1011,rSl
and second gear only
'N'
for neutral
.,.
lor
flrSl gear hold
Fig. 1
46
A safety lock prevents Inadvertent selection
of
R',
'P',
N'
or
"',
by
baulkmg
movement
of the selector lever InlO these
posJllOns
unlll
a
button
on
top
of
the lever
IS
deplessed The
button
must
also
be
depressed
lO
allow
disengagement
of
'p'
Free
movement
of
the lever
IS
permlHed
to
allow
unhmdered
selection
between
'0'
and
'2'
durrng
normal
drrvmg and also
of
'N'
from 'R' and
'0'
from
N'
Starting
1he
Engine
The starter SWitch Will operate
only
when
the selector lever
IS
placed either m 'P'
or
'N ThIs safety feature prevents
poSSIble
damage
resuthng
from
vehicle
movement
when
slartlnglhe
engme
In a
confined
space
For
normal
startrng, IIISI APPLY
THE
HANOBRAKE and move
Ihe
seleclor lever \0 'P'
or
'N'
then start
Ihe
engine
as
described
under
Aunnrng
InstructIons'
Should
the vehicle be
on
a steep mclrne,
starl
the
engine
With
the
lever In the 'P
poSItion (see
'P"
Normal
Driving
When
the
engine
IS
started, release the acceleralOr pedal and
allow
the
engine
to reverl to
Idling
Move
the selector lever to
'0',
where
It
may
be
lell
for all
normal
drIVrng
Under
fast-idle
conditions
(when
the
engine
is
cold),
movement
of
the
selectOr lever
from
'N'
to
'P'
will
produce
a
cushioned
thump;
this
is
not
detrimental
to
the
car
or
transmission,