10-66. TROUBLESHOOTING.
10-67. REMOVAL AND REPLACEMENT. Refer to Paragraph 10-74 of this section.
10-68. AMMETER.
10-69. GENERAL.
The ammeters are mounted in the instrument cluster. This instrument measures the current going into the
entire electrical system including the battery charging demand.
10-70. TROUBLESHOOTING. Refer to Section XI (Alternator Section).
10-71. REMOVAL AND REPLACEMENT. Refer to Paragraph 10-74 of this section.
10-72. REMOVAL AND REPLACEMENT OF FACE MOUNTED INSTRUMENTS.
NO
TE: If any connections in the pitot/static system are opened for maintenance, the entire system must
be rechecked per paragraph 10-18a.
10-73. GENERAL.
Since all instruments are mounted in a similar manner, a description of a typical removal and installation
is provided as a guide for the removal and installation of the instruments. Special care should be taken
when any operation pertaining to the instruments is performed.
a. Remove the face panel.
b. With the face panel removed, the mounting screws for the individual instruments will be exposed.
Remove the connections to the instrument prior to removing the mounting screws of the instrument
to be removed.
NO
TE: Tag instrument connections for ease of installation.
c. Installation of the instruments will be in the reverse given for removal (Refer to step ‘d’ for gyro
fitting installation).
PIPER SENECA II SERVICE MANUAL
X - INSTRUMENTS 01/01/09
2F10
TABLE X-XIII. OIL TEMPERATURE INDICATORS
Trouble Cause Remedy
Instrument fails to Broken or damaged bulb. Check engine unit and
show any reading. Wiring open. wiring to instrument.
Excessive error. Improper calibration Replace instrument.
adjustment.
Pointer fails to move Broken or damaged bulb Check engine unit and
as engine is warmed up. or open wiring. wiring.
Dull or discolored Age. Replace instrument.
marking.
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