PIPER AIRCRAFT, INC.
PA-28-161, WARRIOR III
MAINTENANCE MANUAL
2D17
24-30-00
PAGE 1
Nov 30/06
D.C.
GENERATION
1. Alternator Service Precautions
The following precautions must be observed when testing or servicing the electrical system. Failure to
observe these precautions will result in serious damage to the electrical equipment. The alternator and
regulator are designed for use on only one polarity system.
CAUTION: REFER TO WIRING DIAGRAM (SEE FIGURES 13 AND 15) WHEN INSTALLING OR
TESTING ALTERNATOR.
CAUTION: DISCONNECT BATTERY BEFORE CONNECTING OR DISCONNECTING TEST
INSTRUMENTS, EXCEPT VOLTMETER, OR BEFORE REMOVING OR REPLACING ANY
UNIT OR WIRING. ACCIDENTAL GROUNDING OR SHORTING AT REGULATOR,
ALTERNATOR, AMMETER, OR ACCESSORIES, WILL CAUSE SEVERE DAMAGE TO
UNITS AND/OR WIRING.
CA
UTION: THE OUTPUT LEAD MUST NOT BE REMOVED FROM ALTERNATOR WHILE ROTOR
WINDING IS ENERGIZED AND ALTERNATOR IS OPERATING.
CA
UTION: DO NOT OPERATE THE ALTERNATOR ON OPEN CIRCUIT WITH ROTOR WINDING
ENERGIZED.
CAUTION: DO NOT ATTEMPT TO POLARIZE ALTERNATOR. NO POLARIZATION IS REQUIRED.
ANY ATTEMPT TO DO SO COULD DAMAGE ALTERNATOR, REGULATOR, OR
CIRCUITS.
CAUTION: GROUNDING ALTERNATOR OUTPUT TERMINAL WILL DAMAGE ALTERNATOR
AND/OR CIRCUIT AND COMPONENTS.
CAUTION: REVERSED BATTERY CONNECTIONS WILL DAMAGE RECTIFIERS, WIRING, AND
OTHER CHARGING SYSTEM COMPONENTS. BATTERY POLARITY MUST BE
CHECKED WITH A VOLTMETER BEFORE CONNECTING BATTERY. THIS AIRCRAFT IS
NEGATIVE GROUND.
CA
UTION: IF BOOSTER BATTERY OR FAST CHARGER IS USED, ITS POLARITY MUST BE
CONNECTED CORRECTLY TO PREVENT DAMAGE TO ELECTRICAL SYSTEM
COMPONENTS.
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