Piper SARATOGA PA-32-301 Maintenance Manual page 348

PIPER AIRCRAFT
PA-32-301/301T
MAINTENANCE MANUAL
GENERAL.
This chapter provides instructions relating to maintenance of lighting equipment used on this aircraft.
DESCRIPTION AND OPERATION.
To the left of the instrument panel on the cockpit side panel are electrical switches for the battery. fuel
pump. anti-collision lights. landing light and pitot heat. The circuit breakers are located on the lower right
instrument panel as are a set of rheostat switches which control the radio, panel lights and navigation lights.
The annunciator panel includes alternator, low oil pressure and vacuum indicator lights. Also an
overboost indicator light on the PA-32-301T. The annunciator panel lights are provided only as a warning to
the pilot that a system may not be operating properly, and that the applicable system gauge should be checked
and monitored to determine when or if any necessary action is required.
TROUBLESHOOTING.
When checking the lighting system, the master switch must be on in order for the lights to operate. Insure
that the fuse which protects the light circuit being checked is serviceable.
CHART 3301. TROUBLESHOOTING (ELECTRICAL SYSTEM)
Trouble
Cause
Remedy
ANNUNCIATOR PANEL
ALT warning light fails
to extinguish.
Blown fuse.
Replace 5 amp fuse
near the diode heat
sink.
No current from the
fuse to the resistor.
Check all wire segments
and connections.
Test switch fails to
activate warning lights.
ALT warning light
fails to extinguish.
ammeter reads full
output.
Bad switch or
connections.
Diode heat sink shorted
to airframe.
Check wires and replace
switch if necessary.
Replace teflon insulating
washers. Do not tighten
screws excessively.
33-02-00
Page 33-01
Revised: August 11, 1983
2D7