Piper CHEROKEE WARRIOR PA-28-151 1995 Maintenance Manual page 361

PIPER CHEROKEE WARRIOR SERVICE MANUAL
10-80. TROUBLE SHOOTING EFT GAUGE
TABLE X-XVIII. TROUBLESHOOTING EXHAUST GAS TEMPERATURE GAUGE (ALCOR)
TROUBLE
Gauge inoperative.
Fluctuating reading.
10-81. OUTSIDE AIR TEMPERATURE GAUGE (OAT)
OAT's are mounted in the pilot's windshield on all Warrior airplane models. Although unlit internally, the
dial on those installed in the Warrior II and Warrior III, s/n 28-7716001 and up, are finished in flourescent
luminescent paint.
10-82. REMOVING AND INSTALLING OUTSIDE TEMPERATURE GAUGE
During installation of all OAT's, only finger tighten gauge and
external threaded hex tube (sunshield). Over torquing will
damage instrument.
a Remove external sunshield by turning it counterclockwise. Turn by hand only.
b Remove bushing on outside of windshield by sliding it off of threaded shaft. Note position of any
washers or spacers.
3 Remove gauge and inner bushing by pulling gauge through windsield from inside the airplane.
4 Install new gauge in reverse sequence. Check that tapered face on inner and outer bushings are
positioned properly against windshield. Check gauge position before hand tightening sunshield
10-83. PIPER AUTOCONTROL SYSTEM. (See AutoControl Service Manual)
Added: February 28, 1995
CAUSE
Defective gauge, probe, or
wiring.
Adjusting potentiometer turned
off scale.
Loose, frayed, broken electrical
leads, or faulty connections.
CAUTION
THIS SPACE INTENTIONALLY LEFT BLANK
2D1
Island Enterprises
REMEDY
Check probe and lead wires for
chafing, breaks, or shorting
between wires and metal structure.
Set potentiometer.
Clean and tighten connections.
Repair or replace defective leads.
INSTRUMENTS