FUEL QUANTITY INDICATOR.
The two quantity gauges are mounted in the cluster on the instrument panel. These instruments are
calibrated in divisions of 10, 20, 30 gallons and full. Two transmitter units are installed in each fuel cell. These
units contain 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.
CHART 2803. FUEL QUANTITY INDICATORS
Trouble Cause Remedy
Fuel gauge fails to indicate. Broken wiring. Check and repair.
Gauge not operating. Replace.
Fuel gauge indicates empty Incomplete ground. Check ground connections
when tanks are full. at fuel transmitter in wings.
Fuel gauge indicates full Incomplete ground. Check ground at
with tanks empty. instrument.
Float arm stuck. Replace fuel transmitter.
Fuel gauge indicates incor- Intermittent electrical Check ground at grounded
rectly. connection. transmitter and electrical
connections.
Float arm sticky. Replace fuel transmitter.
Insulated transmitter Remove transmitter and
grounded. sealant. Check for metal
particles in sealant. Reseal
to prevent ground.
28-40-05
Page 28-20
Revised: December 1, 1978
2B15
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL
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