ENGINE OIL PRESSURE GAUGE.
The oil pressure gauge is mounted in the cluster on the instrument panel. This gauge will indicate the
amount of oil pressure available at the pressurized engine oil passage.
CHART 7703. TROUBLESHOOTING (ENGINE OIL PRESSURE GAUGE)
Trouble Cause Remedy
Excessive error at zero. Pointer loose on shaft. Replace instrument.
Overpressure or seasoning
of bourdon tube.
Excessive scale error. Improper calibration ad- Replace instrument.
justment.
Excessive pointer oscilla- Air in line or rough engine Disconnect line and fill with
tion. relief. light oil. Check for leaks.
If trouble persists, clean
and adjust relief valve.
Sluggish operation of Engine relief valve open. Clean and check.
pointer or pressure fails
to build up.
TEMPERATURE.
OIL TEMPERATURE INDICATOR.
The oil temperature indicator is mounted in the instrument cluster on the instrument panel. This instrument
will provide a temperature indication of the engine oil in degrees Fahrenheit. The instrument has a temperature
bulb located in the oil screen assembly, on the engine accessory section.
CHART 7704. TROUBLESHOOTING (OIL TEMPERATURE INDICATORS)
Trouble Cause Remedy
Instrument fails to show Broken or damaged bulb. Check engine unit and
any reading. Wiring open. wiring to instrument.
Excessive scale error. Improper calibration ad- Repair or replace.
justment.
Pointer fails to move as Broken or damaged bulb Check engine unit and
engine is warmed up. or open wiring. wiring.
Dull or discolored marking. Age. Replace instrument.
77-20-01
Page 77-03
December 1, 1978
3F20
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL
To Next Page
Loading...
Need help?
General
