Piper PA-28RT-201 Service Manual

24-02-00
Page 24-02
Revised: August 17, 1982
1H21
CHART 2401. TROUBLESHOOTING (ALTERNATOR)
Zero output indicated on Open field circuit. With master switch turned
ammeter regardless of RPM. on, check for battery voltage
(Refer to alternator system from airplane’s main buss
test procedure.) through entire field circuit
to alternator field terminal.
Measure voltage from ground
(-) to the following points (+)
in sequence: buss bar, output
circuit diodes, field circuit
breaker (5A), field terminals
of master switch, voltage regu-
lator and alternator field
terminal.
Interruption of voltage
through any of these points
isolates the faulty components
or wire which must be re-
placed. (See wiring schematic,
Chapter 91.)
Open output circuit. With master switch turned on,
check for battery voltage from
airplane’s main buss through
entire output circuit to alter-
nator battery post. Measure
voltage from ground (-) to the
following points (+) in se-
quence: buss bar, output
diodes, ammeter, and al-
ternator battery post.
Interruption of voltage
through any of these points
isolates the faulty component
or wire which must be re-
placed. (See wiring schematic,
Chapter 91.)
Trouble Cause Remedy
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL

Piper PA-28RT-201 Specifications

General

Brand	Piper
Model	PA-28RT-201
Category	Aircrafts
Language	English