Piper COMANCHE 260 User Manual

THE
PIPER
COMANCHE
SECTION
I
in
fouled
spark
plugs.
The
magnetos
should
bechecked
at
2200
RPM
and
with
propeller
in
high
RPM,
the
drop
should
not
exceed
125
RPM.
The
engine
is
warm
enough
for
take-off
when
the
throttle
can
be
opened
without
the
engine
faltering.
The
electric
fuel
pump(s)
should
be
turned
off
after
starting
or
during
warm-up
to
make
sure
that
theengine
drivenpump
is
operating
by
noting
if
fuel
pressure
or
fuel
flow
is
maintained.
Prior
to
take-off
the
electric
pump(s)
should
be
turnedon
again
to
prevent
lossof
power
during
taKe-off
should
the
engine
driven
pump
fail.
In
airplanes
with
carburetor
induction
engines,
the
carbu-
retor
heat
should
be
checked
during
the
warm-up
to
make
sure
the
heat
control
operation
is
satisfactory
and
to
clear
out
the
carburetor
if
any
ice
has
formed.
It
should
also
be
checked
in
flight
occasionally
when
outside
air
temperatures
are
between
20°
F
and
70°
F
to
see
if
icing
is
occurring
in
the
carburetor.
In
most
cases
when
an
engine
loses
manifold
pressure
without
apparent
cause,
the
use
of
carburetor
heat
will
correct
the
condition.
When
carburetor
heat
is
applied,
cold
air
entering
the
induction
system
is
taken
from
the
engine
compartment,
through
the
exhaust
pipe
shroud,
then
to
the
carburetor;
itisnot
filtered.
For
this
reason
carburetor
heat
should
not
be
used
on
the
ground
in
dusty
conditions
except
momentarily
during
the
run-up.
Dust
taken
into
the
intake
system
can
damage
the
engine
severely,
and
caution
must
always
be
exercised
during
ground
operation
to
prevent
dust
from
entering
the
engine.
The
propeller
control
should
be
moved
through
its
complete
range
during
the
warm-up
to
check
for
proper
operation,
then
left
in
the
full
highRPM
position.
During
cold
weather
operation
the
propeller
should
be
cycled
a
minimum
of
three
times
to
insure
that
warm
engine
oil
has
circulated
throughoutthe
entire
system.
During
the
propeller
check,
as
during
other
ground
oper-
ations,
care
must
be
taken
not
to
run-up
the
engine
with
the
propeller
over
loose
stones,
cinders
or
other
objects
which
can
be
picked
up
by
the
propeller,
and
which
frequently
cause
extensive
damage
to
the
propeller
blades.
660201
24

Piper COMANCHE 260 Specifications

General

Brand	Piper
Model	COMANCHE 260
Category	Aircrafts
Language	English