CHART 7705. TROUBLESHOOTING (EXHAUST GAS TEMPERATURE GAUGE) (Alcor)
Trouble Cause Remedy
Gauge inoperative. Defective gauge, probe or Check probe and lead wires
wiring. for chafing, breaks or short-
ing between wires and/or
metal structure.
Adjusting potentiometer Reset potentiometer.
turned off scale.
Fluctuating reading. Loose, frayed or broken Clean and tighten con-
electrical leads or faulty nections. Repair or replace
connections. defective leads.
CYLINDER HEAD TEMPERATURE GAUGE.
The cylinder head temperature gauge is in the instrument cluster on the instrument panel. This instrument
measures the cylinder head temperature using a sender located in a cylinder head. The head location is
determined by the engine manufacturer. It is an electrical instrument and is wired through the instruments
circuit breaker.
CHART 7706. TROUBLESHOOTING (CYLINDER HEAD TEMPERATURE GAUGE)
Trouble Cause Remedy
Instrument shows no indi- Power supply wire broken. Repair wire.
cation.
Defective instrument. Replace instrument.
Master switch off.
Instrument goes all the Wire broken between Repair wire.
way to upper stop. sender and gauge.
Defective sender. Replace sender.
—END—
77-20-06
Page 77-05
December 1, 1978
3F22
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL
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