Piper Comanche PA-24 - 9-61 L. ALTERNATOR SERVICE TEST SPECIFICATIONS

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PIPER COMANCHE SERVICE MANUAL
cavities. Use a pin or a piece of wire. as shown in Figure 9-27n. to hold the brushes in the holder during
assembly. Remove the pin after the brush holder retaining screws have been tightened Make a
continuity check to be sure the brushes are seated against the slip rings.
d. Drive Pulley: Torque tile drive pulloy retaini .. nut to 35 foot poW1ds.
e. Ventilation: The 8400 aeries IUliIS 11M a slip rina end eaver that baa a bose tYlJ" COMeo-
[·ion for air pressure ventilation. Remove this COYer when bench tatina the alternator.
9-611. Alt.rnator SeNice T.,t Specificatiofts. Prestolite specifications for the 12-volt aiter-
nator installed as standard equipment on PA-24 airplanes .re as follows:
Alternator
~odel
,
Volta,e
I
Rated Output
I
Ground Polanty
i
I
Rotation
I
I
I
Rotor:
i
Current Draw (77'0 F)
I
Resistaa::e (i7
e
F)
I
Output Test (ii' F):
I
Volts
Amperes Output
Field Amperes
Alternator RP!oI
3 C5
AUC8403
U-volts
70 amperes
Ne,ative
8i-Directional
2.9 to 3.3 amps
3.it04.10hms
13.0
10.0
2.85
li80 min.
l 12.l>-volts
14.2
il.S
3.1S
5000 min.
ELECTRICAL SYSTEM
ISSUED: 8/18172