Piper Cherokee Six - Electrical Instruments; Fuel Quantity Indicator; General

PIPER
CHEROKEE SIX
SERVICE MANUAL
9-60.
ELECTRICAL INSTRUMENTS.
9-61. REMOVAL AND
REPLACEMENT. Refer to Paragraph
9-74 of this section.
9-62.
FUEL QUANTITY
INDICATOR.
9-63.
GENERAL.
The two
fuel quantity
gauges are
mounted
in the cluster
on the
instrument
panel. These
instruments
are calibrated
in fractional
devisions of
one fourth,
one
half, three
fourths
and full. A
transmitter
unit is installed
in each
fuel cell. This
unit
contains
a resistance
strip
and a movable
control arm.
The position
of this arm
is controlled
by a float
in the fuel
cell and this
position is transmitted
electrically
to
the indicator
gauge
to
show the
amount
of fuel
in the
cell.
9-64.
TROUBLESHOOTING.
TABLE IX-XIII.
FUEL
QUANTITY
INDICATORS
Trouble
Cause
Remedy
Fuel
gauge
fails to
indicate.
Broken wiring.
Check
and
repair.
Gauge not operating.
Replace.
Blown fuse.
Replace fuse.
Fuel gauge indicates
empty
when
tanks are
full.
Fuel gauge indicates
full with tanks empty.
Incomplete
ground.
Incomplete
ground.
Check
ground
connections
at fuel transmitter in
wings.
Check ground
at instru-
ment.
Float arm
stuck.
Replace fuel transmitter.
Fuel gauge indicates
incorrectly.
Intermittent ground.
Check ground at trans-
mitter and instrument.
Float
arm
sticky.
Replace fuel transmitter.
INSTRUMENTS
Issued: 8/17/72
2L4