Textron Cessna 172R - Recommended Starter Duty Cycle

SECTION
4
NORMAL
PROCEDURES
CESSNA
MODEL
172R
Should
the
engine
tend
to
die
after
starting,
turn
on
the
auxiliary
fuel
pump
temporarily
and
adjust
the throttle
and/or
mixture
as
necessary
to
keep
the
engine
running.
In
the
event
of
over
priming
or
flooding,
turn
off
the
auxiliary
fuel
pump,
open
the
throttle
from
1/2
to
full
open,
and
continue
cranking
with the
mixture
full
lean.
|When
the
engine
starts,
smoothly
advance the
mixture
control
to
full
rich
and
retard the throttle
to
desired
idle
speed.
If
the
engine
is under
primed
(most
likely
in
cold weather
with
a
|cold
engine)
it
will
not
start at
all,
and
additional
priming
will
be
necessary.
|
After
starting,
if
the
oil
pressure
gage
does
not
begin
to
indicate
pressure
within
30
seconds
in
the
summer
time and
approximately
one
minute
in
very
cold
weather,
stop
the
engine
and
investigate.
Lack
of
oil
pressure
can cause
serious
engine
damage.
NOTE
Additional
details
concerning
cold
weather
starting
and
operation
may
be
found
under
COLD
WEATHER
OPERATION
paragraphs
in
this
section.
I
RECOMMENDED
STARTER
DUTY
CYCLE
|
Crank
the
starter
for
10
seconds
followed
by
a
20
second
cool
down
period.
This
cycle
can
be
repeated
two
additional
times,
followed
by
a
ten
minute
cool down
period
before
resuming
cranking.
After
cool
down,
crank
the
starter
again,
three
cycles
of
10
seconds
followed
by
20
seconds
of
cool
down.
If
the
engine
still
fails
to
start,
an
investigation
to
determine
the
cause
should
be
initiated.
4-20
Revision
7
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