Figure 24-40. Brush Installation Figure 24-41. Internal Wiring Diagram
PRECAUTIONS
—CAUTION—
Be very careful when connecting or disconnecting test equipment
(except voltmeter) or before removing or replacing any unit.
Accidental grounding at the regulator, alternator, ammeter or
accessories, will cause severe damage to the units and wiring.
—CAUTION—
Do not attempt to ground or polarize alternator or operate
alternator on an open circuit. Attempting to do so may result in
damage to alternator, regulator or circuits.
—CAUTION—
Always check polarity of a charger or booster battery before
connecting it to the airplane. Failure to do so could cause severe
damage to electrical components.
—NOTE—
In the past, aluminum cable was used in wiring the battery
circuit: battery to ground, battery to master relay, master relay to
starter solenoid, starter solenoid to starter, and engine return
ground wire to airframe. (See schematics for your airplane.) If,
during inspection, a fault in the aluminum cable is found, Piper
considers it mandatory that the complete cable assembly be
replaced with copper wire and suitable terminals.
24 - 33 - 00
Page - 24 - 34
Reissued: August 1, 1986
1J9
PIPER AIRCRAFT
PA-28-236
MAINTENANCE MANUAL
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