Electrical System - Piper Cherokee Archer II Pilot Operating Handbook

SECTION 7
DESCRIPTION AND OPERATION
PIPER AIRCRAFT CORPORATION
PA-28-I8I, CHEROKEE ARCHER D
Fuel quantity and prcssurc arc indicated on gauges located in a cluster on the left side of the
instmment pancl.
An optional engine priming system is available to facilitate starting. The primer pump is located to the
immediate left of the throttle quadrant (refer to Figure 7-5).
7.15 ELECTRICAL SYSTEM
The electrical system includes a 14-volt, 60 amp alternator, a 12-volt battery, a voltage regulator, an
overvoltage relay and a master switch relay (Figure 7-11). The battery is mounted in a thermoplastic box
immcdia tely aft of the baggage compartment. The reguiator and overvoltage relay are located on the
forward left side of the fuselage behind the instmment panel.
Electrical switches are located on ti,e right center instrument panel, and the circuit breakers are
located on the lower right instrument panel. A rheostat switch on the left side of the switch panel controls
the navigational lights and the radio lights. The similar switch on the right side controls and dims the panel
Iigh
Is.
Standard electrical accessories include a starter, electric fuel pump, stall warning indicator, cigar
lighter, fuel gauge, ammeter, and annunciator panel.
The annunciator panel includes alternator and low oil pressure indicator lights. When the optional gyro
systcm is installed, the annunciator panel also includes a low vacuum indicator light. The annunciator panel
Iighls 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.
Optional electrical accessories include navigation Iigh
Is,
an ti-collision ligh t, landing light, instrument
lighting, and cabin dome light. Circuits will handle the addition of communications and navigational
equipment.
Thc words "master switch" used hereaftcr in this manual indicate both sides of the switch; battery
side "BAT" and alternator side "ALl''' are to be depressed simultaneously to OFF or ON as directed.
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REPORT: VB-790
7-10
ISSUED: JUNE 18, 1976
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