SECTION 7 CESSNA
NORMAL PROCEDURES MODEL 162
GARMIN G300
U.S.
BEFORE TAKEOFF
WARM UP
If the engine idles with the throttle against the idle stop, approximately
700 to 800 RPM and accelerates smoothly, the engine is warm enough
for takeoff. Since the engine is closely cowled for efficient in-flight
engine cooling, the airplane should be pointed into the wind to avoid
overheating during prolonged engine operation on the ground. Refer to
Leaning For Ground Operations procedures to prevent spark plug
fouling that can occur from long periods of idling and prolonged ground
operations.
MAGNETO CHECK
MAKE SURE ENGINE OIL TEMPERATURE IS ABOVE
75ºF AND OIL PRESSURE IS WITHIN THE GREEN BAND
RANGE PRIOR TO PREFORMING A MAGNETO CHECK.
The magneto check must be made at 1700 RPM. Turn the
MAGNETOS switch from the BOTH position to the R position. Note the
new RPM, then turn the MAGNETOS switch back to the BOTH position
to clear the spark plugs. Turn the MAGNETOS switch to the L position,
note the new RPM, then turn the switch back to the BOTH position.
RPM decrease should not be more than 150 RPM on either magneto or
be greater than 50 RPM differential between magnetos. If there is a
doubt concerning operation of the ignition system, RPM checks at
higher engine speeds will usually confirm whether a deficiency exists.
No RPM drop may indicate a faulty ground to one magneto or magneto
timing set in advance of the angle specified.
(Continued Next Page)
162PHUS-01
7-30
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