Electrical System - Piper Aircraft Corporation Cherokee Lance PA-32R-300 Handbook

PIPER AIRCRAFT CORPORATION SECTION 7
PA-32R-300, CHEROKEE LANCE DESCRIPTION AND OPERATION
SWITCH PANEL
Figure 7-15
7.17 ELECTRICAL SYSTEM
The 14-volt electrical system
includes
a 12-volt battery for starting and to back up alternator output.
Electrical power
is supplied
by a 60
ampere
alternator.
The
battery,
a master switch relay, a voltage
regulator and an overvoltage relay are located
beneath the floor of the forward baggage compartment.
Access to these electrical
components
is
gained
by removing the compartment floor and the access
panel
located
on
the left side of
the forward fuselage.
Electrical
switches are
located
on a
panel to the pilot's
left (Figure 7-15) and all circuit breakers are on
the lower right instrument panel (Figure 7-19). A switch panel light is available as optional equipment. The
light is installed above the switch panel and is controlled by a rheostat switch mounted
on
the left side of
the panel. Two
thumb-wheel rheostat switches
to the left
of the circuit breakers
control the navigation
lights and the intensity
of the instrument
panel lights.
Standard electrical accessories include the starter, the electric fuel pump, the stall warning indicator,
the ammeter, and the annunciator panel.
The annunciator panel includes alternator and low oil pressure indicator lights. When
the optional gyro
system
is installed,
the annunciator
panel
also includes a
low
vacuum
indicator light. The annunciator
panel
lights
are
provided
only as a warning to the
pilot
that a system may not be operating
properly, and that he
should check
and monitor
the applicable
system gauge to
determine when
or
if
any necessary
action is
required.
ISSUED: AUGUST
20, 1976 REPORT: VB-840
REVISED: AUGUST 19, 1977
7-15