2I14
TABLE XI-V. ELECTRICAL SYSTEM TROUBLESHOOTING
Zero output indicated
Open field circuit.
With master switch turned
on ammeter regardless
on, check for battery voltage
of rpm (refer to alternator
from airplane’s main buss
system 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 (SA), field
terminals of master switch,
voltage regulator and
alternator field terminal.
Interruption of voltage
through any of these points
isolates the faulty components
or wire which must be placed.
(See wiring schematic.)
Open output circuit.
With master switch turned
on, check for battery voltage
from airplane’s main buss
through entire output circuit
to alternator battery post.
Measure voltage from ground
(-) to the following points
(+) in sequence: buss bar,
output diodes ammeter,
and alternator battery
post.
Trouble
Cause
Remedy
Revised: 2/13/89
CHEROKEE ARROW III SERVICE MANUAL
ELECTRICAL SYSTEM
ALTERNATOR
Summary of Contents for ARROW III
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