Piper SARATOGA PA-32-301 Maintenance Manual page 183

PIPER AIRCRAFT
PA-32-301/301T
MAINTENANCE MANUAL
C326
371
END VIEW
SIDE VIEW
Figure 24-14. Brush Installation
Figure 24-15. Internal Wiring Diagram
PRECAUTIONS.
The following precautions are to be observed when testing or servicing the electrical system.
1. Disconnect the battery before connecting or disconnecting test instruments, except voltmeter, or
before removing or replacing any unit or wiring. Accidental grounding or shorting at the regulator, alternator.
ammeter or accessories, will cause severe damage to the units and/or wiring.
2. The output lead must not be removed from the alternator while the rotor winding is energized and the
alternator is operating.
3. Do not attempt to polarize the alternator. No polarization is required. Any attempt to do so may
result in damage to the alternator, regulator or circuits.
4. Grounding of the alternator output terminal may damage the alternator and/or circuit and
components.
5. Reversed battery connections may damage the rectifiers, wiring or othercomponents of the charging
system. Battery polarity should be checked with a voltmeter before connecting the battery. This aircraft is
negative ground.
6. If a booster battery or fast charger is used, its polarity must be connected correctly to prevent damage
to the electrical system components.
EFFECTIVITY: PRESTOLITE
24-31-09
Page 24-18
Revised: February 19, 1982
1H15