PIPER
SENECA
II
SERVICE
MANUAL
10-87. REMOVAL AND REPLACEMENT. Refer
to
Paragraph 10-72
of
this section.
10-88. PIPER AUTOCONTROL SYSTEM. (See AutoControl Service Manual).
TABLE X-XVII. INSTRUMENT MARKINGS
Fuel Flow:
Green Arc (Normal Operating Range)
0
to
20.0 GPH
Red Line 3.5 and 20.0 PSI
Manifold Pressure:
Radial Red Line
10
in.
Hg.
and 40 in.
Hg.
Tachometer:
Green Arc (Normal Operating Range) 500
RPM
to
2000
RPM
and 2200
RPM
to
2575
RPM
Radial Red Line (Maximum) 2575
RPM
Cylinder Head Temperature:
Green Arc (Normal Operating Range)
360
to
460°F
Radial Red Line (Never Exceed)
460°F
Oil Pressure:
Green Arc (Normal Operating Range)
30 PSI to 80 PSI
Yellow Arc (Caution)
10
to
30 PSI and 80
to
100 PSI
Radial Red Line:
Minimum
lOPSI
Maximum
100 PSI
Oil Temperature:
Green Arc (Normal Operating Range)
75 to
240°F
Radial Red Line (Never Exceed)
240°F
Airspeed Indicator:
Green Arc (Normal Operating Range)
76
MPH
to
190
MPH
Yellow Arc (Caution Range - Smooth Air)
190
MPH
to
224
MPH
White Arc (Flaps Extended Range)
69
MPH
to
125
MPH
Radial Red Line (Never Exceed - Smooth Air)
224MPH
Radial Red Line (Minimum Control Speed - Single Engine)
80MPH
Radial Blue Line (Best R/C Speed Single Engine)
105
MPH
10-89. ANNUNCIATOR PANEL.
10-90. GENERAL. The annunciator panel
is
a light cluster mounted in the upper left instrument panel
that provides a visual indication
of
individual system malfunctions. A press-to-test switch on the left side
of
the annunciator will illuminate the entire display to check the condition
of
each display lamp when the
engine
is
running. The lamps will light when the engine
is
not running with the master switch
ON.
Sensors
located in the individual systems monitored activate
to
complete
the
annunciator circuit whenever a system
malfunctions.
10-91. TROUBLESHOOTING. (Refer to Section XI.)
10-92. REMOVAL AND REPLACEMENT. (Refer to Paragraph 10-72.)
Reissued: 10/11/79
2F15
INSTRUMENTS
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