Oil Temperature Indicator Troubleshooting - Piper PA-24 Comanche Service Manual

PIPER COMANCHE SERVICE MANUAL
TABLE XI·XDI. OIL TEMPET<ATUllE INDICATORS
Trouble CauIe
Remedy
Inmument fails to show Broken or
damqed
capillary.
Check eftIine anit
and
any rading. WirinI open.
wirin,
to instrUment.
Excessive sole
errer,
Improper calibration adjust-
Repair
or
replace.
ment.
Pointer
fails
to
move as BrokeD or darnapd capillary
Check engine unit and
I
cnJine
is warmed
up. or opa wiring. wiring.
Dull or discolored Ap. Replace instNmmt.
luminous marking.
11-70. Ammeter.
11-71. Gomenl. The ammeter is mounted in
me
intmament duster located on the instrument panel. This
instrument measures the amount of current received and the amount of
current
drain on the battery.
11-'7'2. Removal And Replacement. Refer to Puqraph 11-20 of this section.
11·7). Troubleshootin,. Refer to Section IX, Electrical Section.
11·14 Fuel Quanticy Indicator. (P.o\·24-180, Serial Nos. 24-1 and up. and P.I\-24-250. Serial Nos. 24-1
to
24-2843 incl.)
11·15. General. Two fuel quantity ,allfCS are used on the Comanche and are mounted in the cluster on the
inscl'\lmcnt panel. These instrUments arc C21ibrated in fractional divisions of one fourth. one half, three
fourths and full. A transmitter unit is installed in
each Net
cell. This unit contains a resistance strip and
;l
movable conttol arm, The position of this um
is
controlled by a flou
in
me fuel cell and this position is
transmitted electrically to the indicator gluge to show the amount of fuel in me cell. If the auxiliary fuel
system
is
installed.
twO
aUXiliary fuel quantity pUlcs will
be
insullcd
in
the instrUment cluster.
11- 76. Removal And Replacemeac. Refer to Paragraph 11·20 of this section.
11-11. Troubleshooting.
INSTRUMENTS
ISSUED: 8/18/72
3817
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