Piper PA-28RT-201T - Page 222

Figure 24-38. Slip Ring End Bearing Assembly Figure 24-39. Testing Alternator
CHART 2404. ALTERNATOR SPECIFICATIONS (PRESTOLITE)
Aircraft Model PA-28RT-201 PA-28RT-201T
Alternator Model ALY 6422 ALX 9425
Voltage 12-volts 12-volts
Rated Output 60 amperes 65 amperes
Ground Polarity Negative Negative
Rotation Bi-Directional Bi-Directional
Rotor:
Current Draw (77°F) 3.0 to 3.3 amps @ 12.0-volts 2.4 to 4.0 amps @ 12.0-volts
Resistance (77°F) 3.6 to 3.9 ohms 3.0 to 5.0 ohms
Output Test (77°F):
Volts 12.8 14.2
Amperes Output 10.0 65.2
Field Amperes 3.15 3.45
Alternator RPM 1730 min. 5000 min.
24-33-09
EFFECTIVITY: Page 24-35
PRESTOLITE ALTERNATOR Revised: July 13, 1983
1J6
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL