SECTION 2 CESSNA
AIRPLANE AND SYSTEM DESCRIPTION MODEL 162
GARMIN G300
U.S.
ENGINE (Continued)
ENGINE INSTRUMENTS (Continued)
OIL PRESSURE (OIL PSI)
The oil pressure transducer, connected to the engine forward oil
pressure port, provides a signal to the engine display that is processed
and shown as oil pressure.
Engine oil pressure is shown on all EIS pages. The analog instrument
range is 0 to 110 PSI with digital information range from 0 to 140 PSI.
The instrument has a red band from 0 to 10 PSI (low warning), a yellow
band from 10 to 30 PSI (low caution), a green band from 30 to 60 PSI
(normal operating range), a yellow band from 60 to 100 PSI (high
caution) and a red band from 100 to 110 PSI (high warning). A white
pointer indicates actual oil pressure.
When oil pressure is 0 to 10 PSI or 100 to 140 PSI, the pointer, digital
value, and label (OIL PRES) will change to red to show that oil pressure
is outside normal limits. A red-X is displayed when the instrument is
invalid or out of the data range.
When the engine speed (RPM) is in the green arc and the oil
temperature is in the green band, the oil pressure should be in the
green band. If oil pressure is below the green band or above the green
band, adjust the engine speed to maintain adequate oil pressure. When
engine speed is at idle or near idle, the oil pressure indication must be
above the lower red band. With the engine at normal operating oil
temperature, and engine speed at or close to idle, oil pressure below
the green band, but above the lower red band, is acceptable.
In cold weather, the oil pressure will initially be high (close to the upper
red band when the engine is started). As the engine and oil warm up,
the oil pressure will come down into the green band range.
(Continued Next Page)
162PHUS-00
2-10
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