SECTION 4
NORMAL PROCEDURES
CESSNA
MODEL 172S
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.
IWhen 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
Icold
engine)
it will not start at all, and additional
priming will be
necessary.
I
After starting, if the oil pressure gage does not begin to show
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 1'0 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 th.e 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.
Revision 4
Содержание Cessna 172S Skyhawk SP
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