SECTION
III
CHEROKEE
180
5.
After engine
has
been
started,
turn
MASTER
SWITCH
to
OFF
and remove jumpercable
plug from aircraft.
6.
Turn
aircraft MASTER SWITCH
to ON and check
alternator
ammeter for
indication of
output. DO NOT ATTEMPT
FLIGHT
IF
THERE
IS
NO INDICATION
OF ALTERNATOR
OUTPUT.
When the engine is
firing evenly,
advance the throttle to 800 RPM.
If
oil
pressure
is not indicated
within
thirty
seconds, stop the engine
and determine the trouble. In cold weather it will take a few seconds
longer
to
get an oil pressure indication. If the
engine has
failed
to start,
refer
to
the
"Lycoming
Operating
Handbook,
Engine Troubles and
Their
Remedies."
Starter
manufacturers
recommend
that
cranking
periods
be
limited
to
thirty
seconds with
a two
minute
rest between
cranking
periods.
Longer
cranking
periods
will shorten the
life
of
the starter.
WARM-UP
AND
GROUND
CHECK
Warm-up
the engine
at 800 to 1200 RPM for not more than two
minutes in warm
weather,
four
minutes in cold weather. Avoid
prolonged
idling at low
RPM
as this
practice
may
result in fouled spark
plugs.
If
necessary to
hold before
take-off,
it
is recommended
that
the
engine be
idled
at
1200
RPM.
The magnetos should
be
checked at
2000
RPM
and
the
drop
off
on
either
magneto should not exceed 175 RPM
and
should be within 50
RPM
of the
other.
Prolonged
operation
on one magneto
should be
avoided.
Check vacuum gauge, indicator
should read
5" Hg
±
.1"
Hg
at 2000
RPM.
Check both the
oil
temperature and pressure. The
temperature
may
be
low for some time
if the engine is
being
run for
the
first time of
the
day,
but as
long
as the
pressure
is
within limits the
engine
is ready
for
take-off.
Carburetor
heat should also
be checked prior
to
take-off
to be
sure
that
the control is
operating
properly and to
clear
any
ice which may
have
formed during taxiing. Avoid
prolonged ground operation with
carburetor
heat
ON as
the air is
unfiltered.
22
761513
730122
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