Chapter 28-Fuel - Piper Arrow IV Turbo Maintenance Manual

TROUBLESHOOTING.
Troubles peculiar to the fuel system are listed in Chart 2801 along with their probable causes and
suggested remedies. When troubleshooting, check from the power supply to the items affected. If no trouble is
found by this method, the trouble probably exists inside individual pieces of equipment; they may be removed
from the airplane and an identical unit or units, tested and known to be good, installed in their place.
Trouble
Failure of fuel to flow.
Fuel quantity gauge fails
to operate.
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL
CHART 2801. TROUBLESHOOTING CHART (FUEL SYSTEM)
Fuel line blocked.
Fuel vent cap blocked.
Mechanical or electrical
fuel pump failure.
Fuel selector valve in
improper position.
Damaged fuel selector
valve.
Broken wire.
Gauge inoperative.
Fuel sender float partially
or completely filled with
fuel.
Circuit breaker open.
Float and arm assembly
of fuel sender sticking.
Bad ground.
Cause
2A22
Remedy
Flush fuel system.
Check and clean vent
hole in cap.
Check and replace if
necessary.
Reposition as required.
Replace fuel selector
valve.
Check and repair.
Replace gauge.
Replace sender.
Check and reset.
Check.
Check for good contact at
ground lip or rear of gauge.
28-00-02
Page 28-03
December 1, 1978