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THE PIPER
CHEROKEE
SECTION
III
In
cold
weather (below
40
degrees
F.) prime
rhe
engine
with
onetothree full
strokes
of
the
priming
pump.
If
extremely
cold,
stårting
will
be
aided by
pulling
the
propeller
through
by
hand
(switch
"OFF') four ro five revolutions.
If
rhe
temper-
ature
is
above 40 degrees
the
engine may
be
primed by
rhree
or four
short quick strokes
of
the
throttle.
After priming, turn
the
electric
master sv/itch
on,
engage
the
starter
and
allow
the
engine
to
turn
approximately
one
full
revolution,
then
turn
the
ignition
swltch
to
the
"Left"
magneto
position.
When
the
engine
is firing evenly, turn
the magneto
switch
to the
"Both" position
and
advance
rhe
thrortle
ro
800 RpM,
Check the
oil
pressure
gauge
for a
pressure
indication. If
oil
pressure
is
not
indicated
within
thirty
seconds, stop
the
engine
and
determine
the
trouble.
If
the
engine
fails to start at
the
first
attempt,
another
attempt
should
be
made
wirhout
priming. If this fails, ir
is
possible
thar
the
engine
is
overprimed, Turn the
magneto
switch
off,
open
the
throttle
slowly, and rorate
the
engine
approximately
ten revolutions with the
starrer.
Reprime
the
engine
with
one
half the
amounr
used
in
the
inirial
artempt,
turn the
magneto
switch to "Left,
"
and
repear
the
starting
procedure.
If
the
engine
again
fails
to start,
refer to
the
"Lycoming
OperatingHandbook,
Section
VII,
Engine
Troubles.
"
WARM.UP
As
soon
as
the
engine
starts,
the
oil
pressure
should
be
checked.
If
no
pressure
is
indicated within
rhirry
seconds,
stop
the
engine
and determlne
the
trouble,
In
cold
weather
it
will
take
a
few
seconds Ionger to get
an
oil pressure indication.
Warm-up
the engine
ar
800
ro
I200
RPM.
Take-off may
be
made as soon
as
ground
check
is
com-
pleted,
providing
that
the
rhrottle may
be
opened
fully
wirhout
back
firing or
skipping,
and wirhout reduction
in
engine
oil
pres§ure,
l5
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