THE NEW PIPER AIRCRAFT, INC.
PA-32-301FT / 301XTC
MAINTENANCE MANUAL
PAGE 1
Jun 1/03
5F3
79-30-00
INDICATING
1. Oil Pressure
A. Gauge
(1) Description
The oil pressure gauge is part of the combination engine gauge which also includes the oil
temperature and the cylinder head temperature gauges. This gauge will indicate the amount of
oil pressure available at the pressurized engine oil passage.
(2) Troubleshooting
See Chart 1.
(3) Removal and Installation
See Face-mounted Instruments, 39-10-00.
B. Transducer
The transducer is mounted on the right rear of the forward bulkhead, under the instrument panel.
(1) Removal
(a) Disconnect the two electrical leads.
(b) Unscrew the transducer from the T-fitting on the bulkhead.
(c) Catch spillage and cover hole to prevent foreign matter from entering oil line.
(2) Installation
(a) Seal transducer pipe threads with thread sealant tape.
(b) Screw the transducer into the bulkhead fitting.
(c) Reconnect the two electrical leads.
(d) Perform operational check.
CHART 1
TROUBLESHOOTING 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 Replace instrument.
adjustment.
Excessive pointer oscillation Air in line or rough engine Disconnect line and fill with
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.
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