Cessna 152 - Page 61

CESSNA
MODEL
152
SECTION4
NORMAL
PROCEDURES
4.
Parking
Brake
--
SET.
5.
Propeller
--
PULL
through
by
hand
several
revolutions.
NOTE
Caution
should
be
used
to
ensure
the
brakes
are
set
or
a
qualified
person
is
at
the
controls.
6.
Mixture
--
RICH.
7.
Throttle
--
OPEN
1/2
to
3/4
INCH.
8.
Prime
-- 2
to
4
STROKES
depending
on
temperature.
9.
Primer
--
RECHARGE
for
priming
after
engine
start.
10.
Propeller
Area
--
CLEAR.
11.
Master
Switch
--
ON.
12.
Ignition
Switch
--
ST
ART
(release
when
engine
starts).
13.
Prime
--
AS
REQUffi.ED
until
the
engine
runs
smoothly.
14.
Throttle
--
ADJUST
for
1200
to
1500
RPM
for
approximately
one
minute
after
which
the
RPM
can
be
lowered
to
1000
or
less.
15.
Oil
Pressure
--
CHECK.
16.
Primer
-- LOCK.
Without Preheat:
The
procedure
for
starting
without
preheat
is
the
same
as
with
preheat
except
the
engine
should
be
primed
an
additional
three
strokes
just
prior
to
pulling
the
propeller
through
by
hand.
Carburetor
heat
should
be
applied
after
the
engine
starts.
Leave
the
carburetor
heat
on
until
the
engine
runs
smoothly.
NOTE
If
the
engine
fires
but
does
not
start
or
continue
running,
repeat
the
above
starting
procedure
beginning
with
step
6.
If
the
engine
does
not
start
d1,1ring
the
first
few
attempts,
or
if
engine
firing
diminishes
in
strength,
it
is
possible
that
the
spark
plugs
have
been
frosted
over,
in
which
case
preheat
must
be
used
before
another
start
is
attempted.
During
cold
weather
operations,
no
indication
will
be
apparent
on
the
oil
temperature
gage
prior
to
takeoff
if
outside
air
temperatures
are
very
cold.
After
a
suiiable
warm-up
period
(2
to
5
minutes
at
1000 RPM),
accelerate
the
engine
several
times
to
higher
engine
RPM.
If
the
engine
accelerates
smoothly
and
oil
pressure
remains
normal
and
steady,
the
airplane
is
ready
for
takeoff.
When
operating
in
temperatures
below
-18°C,
avoid
using
partial
carburetor
heat.
Partial
heat
may
increase
the
carburetor
air
temperature
1
July
1978
4-21