Piper Cherokee 140 - Ground Check Procedures; Take-off Techniques

SECTION
III
THE
PIPER CHEROKEE
GROUND CHECK
Check the
magnetos at
2o0o
RPM
by switching
from Both to
Right
then back to
Both
before
switching
to
Left.
Differential
drop should
not
exceed
50
RPM
while the
total
drop on either magneto should
not
exceed
175
RPM.
Check
vacuum
gauge, indicator should
read
5"
Hg
t.1"
Hg at
2oo0
RPM.
Check
both
the oil temperature and
pr6sure.
Thc temperature
may
be
low for
some
time if the
engine
isbeingrun
forthefirst timeof the
day, but as long as the pressure is
within
limits the
engine is ready for
take-off.
Carburctor
heat
should also
be checked
prior to take'off to be
sure
that the
control
is operating
properly and to clcar
any icc which may
have formed during taxiing. Avoid prolonged
ground
operation with
carburetor
heat ON
as
the
air
is unfiltered.
Mixture
should
be
set
full rich,
except
a
minimum amornt
of
leaning is permitted
for
smooth
enginc operation
when taking off at
high
elevation.
TAKE.OFF
Just
before take-off
the
following
items should
be checkcd:
l. Controls
free
2.
Flaps
"UP"
3.
Tab set
4.
Mixture "RICH"
5.
Carburetor
heat
"OFF"
6.
Fucl
on
proper tank
The take-off technique
is conventional for the
Cherokee.
The tab
should be
set
slighdy
aft
of
neutrd,
with
the
exect
setting
determined
by the loading
of the
aircraft. Allow the airplane to
accelerate
to 50 to
60
miles per
hour,
then
ease back
on
the
wheel enough
to
let
the
airplane fly itself off
the
ground.
Premature
raising of the
nose, or
raising
it to
an
excessive angle,
will result
in
a delayed
take-off, After
take-off let
the
aircraft accelerate
to the desired climb
specd by
lowering
the
nose slightly.
7. Elecuic fuel
pump
"ON"
8. Engine
gauges normal
9.
Dcor
latched
lo.
Altimeter set
11. Fasten belts/harness
16
770527